There are different problems with cars, but for some reason the Gazelle 405 injector does not start most often. Drivers begin to rack their brains, but sometimes a solution to the problem is still impossible to find.
Now we will look at several of the most likely breakdowns during which the car will not start.
When this happens, you first need to look at all the wires, spark plugs, rail pressure and injectors. Most often, the Gazelle 405 injector does not start because of the spark plugs, so just replace them. But sometimes problems arise that are more serious than candles.
Ignition system
Spark plugs and high-voltage wires directly affect engine starting. Accordingly, breakdowns in the elements will cause a failure of the entire system. To check spark plugs, a special stand is used, although you can check it the old fashioned way:
- We unscrew the candle from the well.
- We connect the armored wire.
- Connect the spark plug body to ground.
- We try to start the engine.
If everything is in order with the spark plugs, then there will be a spark between the contacts. If the part is faulty, then there will be no spark, and accordingly, the element must be replaced. Checking armored wires is quite simple. All elements are removed from the car and measured by a tester. The resistance on each high voltage wire should be 5 ohms.
The starter does not respond to turning the key
If you turn the ignition key and the starter does not respond at all, then you need to look for a problem in the wiring and power fuses. Power fuses need to be inspected and checked very carefully, because they may look intact, but in fact they are broken. To understand for sure, you need to unscrew each fuse.
It could also be due to faulty wiring or a bad ground. It is necessary to check and clean the negative connections.
Fuel cells
Why won't my scooter start?
causes and possible breakdowns It is worth understanding that almost all elements affect the start of the motor. For example, since the Gazelle was produced both with carburetor and injection, the injection elements will be different. This means that the reasons for possible breakdowns will not be the same.
The Gazelle-406 engine is an injection version of the vehicle. It has injectors installed, which can be the source of the problem. If cleaning has not been carried out, then most likely the injectors are dirty. To fix this, you need to remove the parts from the machine and send them for cleaning. If, during the process of restoring the functionality of the injectors, it turns out that the product cannot be repaired, then it must be replaced.
A fuel pump malfunction may be due to a breakdown inside the module. To check whether the pump is pumping, you need to get behind the wheel of the car and turn the ignition key to the second position. In this case, a characteristic noise should begin from behind, which will mean that the pump is in working condition.
Particular attention should be paid to the condition of the fuel filter. According to the service manuals and recommendations of the manufacturer, the fuel filter element must be changed every 40,000 km.
If this is not done, the filter becomes clogged and does not allow fuel to pass through properly, which results in a lean mixture in the cylinders, or gasoline does not get in for ignition at all.
Read more: Exiting the acceleration lane, who is inferior?
Clogged intake tube in the tank, air or fuel filter
Another reason that your Gazelle with a Cummins engine does not start may be a clogged fuel or air filter.
When the fuel filter is clogged, we do not receive the required amount of fuel, and when the air filter is clogged, there is correspondingly little air. If the car jerks or there are dips in dynamics, check all filters. They need to be changed at least once every 15,000 km.
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Why the Lada Priora does not start, causes of malfunctions
Why does the Gazelle 405 injection not start? Main reasons
Unfortunately, the difficulties with cars are different, do not start the injector Gazelle 405
for some reason most of the time. Drivers start scratching their heads, but from time to time it is impossible to find a solution to the problem.
At the moment, several more possible breakdowns will be considered in time, what kind of car don’t let go
When this happens, the first thing our client notices is. these are wires, spark plugs, pressure ramps and nozzles
In most cases, the Gazelle 405 injector does not start specifically through the spark plugs, so just change them. Unfortunately, the tasks seem more serious than candles.
Some, when the Gazelle 405 does not start, immediately change the temperature sensor to cool the water. The fact is that the engine may overheat precisely because of this, you do not want to start.
Try replacing the sensor and the cooling will return to normal. In any case, the safest option. take it to a car service center. There, real professionals will quickly deal with breakdowns and say that there weren’t that many cars. You will know in the future what exactly will be repaired.
Common reasons
Do not start the Gazelle 405 injector for any reason. There are hundreds you'll love, and it's not easy to save since there are endless parts. However, in most cases they break nozzles and spark plugs
. If the latter can be bought at any auto parts store, and even an inexperienced driver can replace them, then the former may have problems.
Problems with WMD 405 Euro 3
We are looking for the cause of the malfunction of the ZMZ 405 euro 3
We clean the throttle body while eliminating minor problems.
Grow up Gazelle. Troubleshooting (ZMZ 405 E3) by troubleshooting.
I'm looking for some, it starts
great, this will take seconds3
-5 at 2500-3000 rpm and
the booths
are hot. Now let's get started!
The fact is that in the Gazelle 405 it is very difficult to determine the situation, the snot has broken
Car service to help
If you decide to contact a service center, first perform engine diagnostics. Little experienced drivers understand the cause of the breakdown. At the same time, Gazelle 405 may not start for various reasons, and some of them can be resolved locally.
When you finally take your car to the dealership, at least check with your staff, most likely they will tell you what the problem is.
It is very important to know absolutely everything about your car
to protect yourself on the road and get extra work done. Sooner or later, any part can break, but it will be better if you are prepared for this.
Special cases
In addition to all of the above, there are other adventures with the Gazelle 405. Many drivers do not notice how the chain on the engine jumps. Accordingly, the engine refuses to come to life until the chain is in place.
Your task is simply to open the hood and check if the chain is good
, if not, put it in its place. This procedure will take 10 minutes at best, but you can start the car. The rest do not start the Gazelle 405 injector due to other problems.
It's difficult to answer this question, so we've just listed some of the most common rejection options for you. You can only get an accurate answer after a thorough diagnosis. It is at this stage that you can find out the reason why the car refuses to start. So don’t worry and it’s better to contact a car service.
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Some, when the Gazelle 405 does not start, immediately change the coolant temperature sensor. The fact is that the engine may overheat and it is because of this that it does not want to start.
Try changing the sensor and the cooling will return to normal. In any case, the most reliable option is to take it to a car service center. There, qualified specialists will quickly deal with the breakdown and tell you what was wrong with the car. You will know in the future what exactly will have to be repaired.
The fuel pump does not work, the relay turns on.
Checking relay power.
The main reasons why a Calm chainsaw does not start and how to eliminate them: we explain it step by step
In the case when the fuel pump relay turns on when the ignition is turned on, but the pump itself does not work, you need to check the power at terminal 87 of the fuel pump relay. To do this, touch terminal 87 of the relay socket with the output of the control lamp connected to the vehicle ground, and the lamp should light up. If the lamp does not light, it means the fuse has blown or there is a break in the wire.
If there is power at terminal 87, you should remove the relay from the socket, and instead place a jumper between pins 87 and 30. In this case, if the pump and connecting wires are working properly, the pump should start working and if this happens, the relay should be changed. If the pump does not start working, then, without removing the jumper, you need to touch the power wire on the fuel pump with a test lamp connected to the vehicle ground.
Checking the fuel pump power circuit.
If a submersible pump is installed on the car as part of the fuel module, you need to remove the connecting connector and touch one of the thick wires. When you touch one of them, the indicator lamp should light up. If the lamp does not light up on any of the wires, then it is necessary to eliminate the break in the wire from the fuel pump relay to the module connector or the pump itself, if the pump is of a remote type. One of the reasons for the break may be the anti-theft blocking of an installed non-standard alarm system.
In the case when the test lamp lights up on one of the thick wires of the connector or one of the terminals of the remote pump, you need to connect these terminals with a test lamp to each other. In this case, the control lamp should light up. If the lamp does not light, it is necessary to eliminate a break or poor contact in the wire connecting the pump to the vehicle ground.
If, when checking the wires and relay for turning on the fuel pump, no malfunction is detected, the electric motor of the fuel pump or its connection to the module connector is faulty. It is not difficult to find the cause by removing the fuel pump module from the tank. If there is poor contact with the connector, melting of the plugs will be visible. If melting is not noticed, then to check the pump itself, you can connect it to the battery. It should be taken into account that operating a submersible pump without liquid will damage the pump. A faulty pump should be replaced.
One of the most important elements of the fuel injection system of a gasoline engine is the electric fuel pump, which is located in the fuel tank of the car. The fuel pump pumps fuel into the system from the gas tank, creating a certain pressure.
Auto repair experts identify the following common fuel system problems that are related to the fuel pump:
- The fuel pump pumps poorly and does not create the required pressure;
- the fuel pump does not pump when the ignition is turned on;
Considering that the fuel pump is an electromechanical device, the most common fuel pump malfunctions are related to both the mechanical and electrical parts. Next, we will look at what signs indicate a breakdown of the fuel pump and why the fuel pump stops pumping partially or completely.
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Gazelle EURO 3 won't start
Customers often have a question: why not with the ZMZ 40524 engine with EURO 3 toxicity standards.
As soon as the car plant on the Volga began to equip its cars with EURO 3 engines, the first problems immediately arose:
won't start when cold ,
problems with hot starts, intermittent operation, variable speed, etc. Initially, MIKAS 11ET engine control units were equipped with software version 22, which did not justify itself at all. Then firmware version 32 came out, then version 52. Now most have firmware 32.
Doesn't start when cold
Let's start looking at the problems of EURO 3 with a “cold start” of a Gazelle car equipped with a ZMZ 40524 engine with an electronic gas pedal.
Trying to start a Gazelle in the morning turns into torture for the driver. It either starts the first time - just luck - or it catches on and immediately stalls, or it starts, but the revolutions jump from 400-500 to 1500-2500, and the last option - you can drain the battery, but not start
In most cases the reasons are:
At the initial moment of starting, the starting current of the starter is so high that the voltage on the battery drops to 5-6 Volts. This only lasts a few milliseconds, but this is enough for the engine control unit to reset. If a remote ground switch is installed, this increases the chances of it not starting. Resetting the ECU results in error 1602 being written to it (resetting terminal 30 or turning on the controller for the first time), all adaptation settings are reset, and the control unit begins to recheck all sensors, including the throttle valve assembly (the characteristic sound of the valve moving ), while turning off the fuel supply.
Replace the battery with a more powerful one (not less than 72-75 A/h);
Clean and tighten all power wires (terminals on the battery, body and engine ground, all connections on the remote ground switch, power wire on the starter)
If possible, replace the old-style starter with a more modern one, with a planetary gearbox (with the same torque it consumes less current)
The next problem is starting a hot engine.
Due to a faulty fuel pressure regulator located in the fuel pump module and due to the fact that the fuel rail is a dead end, a vapor lock may form in it. It pushes the fuel back into the gas tank. When you try to start, vapors enter the combustion chamber through the nozzles, which leads to instability of the engine. You have to repeat the start several times until the gasoline vapors are completely replaced by full-fledged fuel.
Battery problems
If the Gazelle does not start, then you should start searching for the impossibility of starting the engine with the battery. If it is insufficiently charged, the starter does not have enough energy to turn the crankshaft. In this case, a significant drop in the on-board network voltage occurs. The traction relay starts to click, but the engine cannot start.
ATTENTION! A completely simple way to reduce fuel consumption has been found! Don't believe me? An auto mechanic with 15 years of experience also didn’t believe it until he tried it. And now he saves 35,000 rubles a year on gasoline! Read more"
The situation with starting the engine with a discharged or old battery is aggravated in cold weather. There are two reasons for this:
- engine oil thickens in the cold and it becomes more difficult for the starter to crank the crankshaft, which causes increased starting current and greater battery energy consumption;
- When it's cold, the chemical reactions of the battery slow down and the battery becomes able to deliver less charge.
In winter, both of the above reasons overlap each other. Starting becomes especially difficult when cold. Under unfavorable conditions, the car may completely refuse to start.
With a discharged battery, many car owners start their Gazelle only with a pusher, but there are other ways, the main ones being:
- start using ROM;
- “lighting up” from another vehicle;
- charging the original battery with a nominal or increased current and then starting the power unit.
A situation with a discharged battery does not require special attention from the car owner if it occurs only once. It is enough to recharge the battery and you can continue to operate the machine as before. If the battery dies often, then it is necessary to diagnose it. Based on its results, a decision is made on the method and feasibility of restoration work. In some cases, it is more rational to purchase a new battery.
If the battery shows full serviceability, but dies in a short period of time, then the on-board network must be checked. It may contain short circuits and high leakage currents. If they are identified, you should not delay troubleshooting. Prompt resolution of problems will eliminate the risk of a car fire.
The presence of through cracks and other similar defects leads to the loss of part of the electrolyte. The battery's ability to deliver starting current and energy is significantly reduced. To diagnose the problem, just carefully inspect the case. If any damage is detected, the car owner is faced with a choice between carrying out repairs or purchasing a new power source.
Signs of trouble
There are three main symptoms of problems with the injector (injector malfunction) of a Gazelle car.
A characteristic sign of a malfunction can be considered detonation, which is unpleasant for the driver’s hearing.
It destroys the motor, which is why it is so important to find the fault in time and fix it. If the engine stalls for no reason on the road, and subsequent attempts to start it lead to the goal only after many repetitions, this is a clear sign of a faulty injector. The power of the power unit does not inspire approval as before. In common parlance - the car does not “pull”
When climbing a hill, the movement turns into a real test of the driver’s nervous system and can be detrimental to the engine.
Doesn't start when the injector is hot
Car service to help
If you decide to contact a car service, first of all carry out engine diagnostics. Few inexperienced drivers understand the cause of the breakdown. At the same time, the Gazelle 405 may not start for various reasons, and some of them can be resolved on the spot.
When you finally take your car to a car service center, at least consult with its employees; most likely they will tell you what the problem is.
It is very important to know absolutely everything about your car.
to protect yourself on the road and do extra work. Sooner or later, any part can break, but it will be better if you are prepared for this.
Bringing the car back to life
As for why a spark disappears, everything is probably very clear. Now, it would not be amiss to consider the order of her return. The reality is that in most cases, getting the spark back is a simple matter and just involves carefully checking the broken car. To be more precise, to normalize sparking it is required:
- Firstly, check the spark on the injector using the method described above, make sure that it has disappeared, and, at least indirectly, try to determine the cause of the malfunction;
- Next, it is enough to assess the current circumstances and act based on them. As typical situations, we suggest considering solutions to the following problems:
- the spark plug is wet, the presence and strength of the spark are unimportant, the carbon deposits are correct (brick color) - wipe the part and screw it back in;
- the spark plug is wet (not always) and the carbon deposits are incorrect (white or black) - clean, dry the part and try to start the engine, if there is no result, change the spark plug and deal with problems in the fuel system (cleaning the injector, checking the ECU, etc.);
- the spark plug is wet, there is no spark at all, the color of the soot is not important - we try to change the part, if there is no result, we check the ignition system and the operation of the injector.
In principle, in theory there are no particular difficulties in repairs of this kind. Despite this, it often causes difficulties in implementation for inexperienced motorists. To solve these, you need to act in the order described above, but if something doesn’t work out, it’s better to turn to professionals at a service station. This approach to repairs will not only save time, but also guarantee trouble-free operation of the car in the future.
Perhaps this concludes the most important information on today’s issue. We hope that the material presented was useful to you and provided answers to your questions. Good luck in operating and maintaining your car!
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Common Causes
The Gazelle 405 injector does not start for various reasons. There could be a hundred of them, or even more, since there are simply unrealistically many details. However, injectors and spark plugs
. If the latter can be bought at any auto parts store, and even a less experienced driver can replace them, then problems may arise with the former.
The fact is that it is very difficult to determine that in such a situation in the Gazelle 405 it was the injectors that broke
.
Malfunctions of the engine power supply system
The most popular problem among inexperienced car owners that leads to the inability to start the power unit is the end of the fuel in the fuel tank. At the same time, the indicator on the instrument panel does not always display information correctly. It is very easy to solve the situation that has arisen. You just need to refuel the Gazelle. Other problems that lead to the engine not starting can be found in the table below.
Table - Manifestation of fuel system malfunctions.
| Cause of malfunction | Manifestation |
| The wrong type of fuel is in the fuel tank | Gazelle refuses to start immediately after refueling |
| Electric pump malfunction | The car stalls while driving and then won't start |
| The injector is not operating normally due to clogged injector nozzles. | Difficulties with starting appear gradually. Starting the car becomes more difficult each time until it completely fails. |
| Damage to the fuel line | The engine stops starting immediately after the defect appears |
| Fuel filter dirty | It is impossible to start the car after the filter is completely clogged |
Air leak
Very often, the cause of poor engine starting can be a banal air leak. From our experience, it most often occurs through the intake pipe in the tank or through a failed separator cover. To check for air leaks in the fuel system, it is necessary to replace the fuel pipe from the filter to the injection pump with a transparent hose.
Bubbles in the fuel will immediately indicate the presence of air leaks. As we have already said, it is necessary to check the separator cap and the intake pipe in the tank, as well as all connections of the fuel pipes.
Why does the Kamens engine not start?
In order to start the Cummins diesel engine installed on a GAZelle car, the initial rotation speed of its crankshaft must be 150...200 rpm.
Let's look at the main reasons why an engine may fail to start.
When compression drops, the air in the cylinders is not compressed to the required level, and therefore does not heat up to a temperature sufficient for self-ignition of the sprayed diesel fuel.
A fundamentally opposite malfunction, in which, as in the first case, a GAZelle with a Cummins engine does not start, is clogging of the electromagnetic injectors, as a result of which fuel simply cannot enter the hot air environment due to existing mechanical barriers.
A low battery charge level does not allow the starter rotor to accelerate to those cherished 150-200 rpm, as a result of which some of the air, when compressed, manages to run through the smallest cracks and gaps into the under-piston space. As a result, as in the case of compression failure, the temperature in the cylinders does not reach the required value, and fuel ignition does not occur.
But there are also cases when the battery is completely charged, but the starter is still not able to develop the required rotation speed. Problems with the starter come from various origins and often require its dismantling and careful inspection.
see also
Comments 23
shoots into the launcher when the mixture is still lean
The valve timing marks were set incorrectly
also won't start after repair, only 402
and after starting the engine, dial from 1000 to 2700 rpm in 15 seconds, 3-4 times, to expel the air from the hydraulic compensators, then the engine will start to whisper, well, if you assembled it well))) on the first start there is usually noise
The high voltages may not have been attached correctly
look at the correct connection of the armored vehicles to the kateshkoh, it was like this
if there are pops, check the phases. They were right about the damper. and are all sensors connected?
and the wires are the same as 406 1-4 and 2-3
This can happen even if the car has been parked for a long time, it’s a fact
pull it in tow, the hydraulic compensators have lost oil and the clearance on the valves is completely different, or even there is no compression at all, pull it in 2nd-3rd gear for 700-1000 meters, the compensators will pick up oil and everything will fall into place, compression will appear in time
pull it in tow, the hydraulic compensators have lost oil and the clearance on the valves is completely different, or even there is no compression at all, pull it in 2nd-3rd gear for 700-1000 meters, the compensators will pick up oil and everything will fall into place, compression will appear in time
Read more: What is the engine power of the VAZ 2107
+1 There was exactly the same situation, with the same engine, we took it in tow, drove it for 300 meters, everything worked.
One day the Gazelle stopped starting? The reason lies in engine malfunctions. The problem may be related to both the mechanical part and the electrical part. To fix the problem, you will have to diagnose a number of parts.
Cummins diesel does not start - what to do
Cummins diesel won't start? Does even such a reliable engine also have breakdowns? Although this engine has gained the status of an unpretentious, durable and reliable power unit, unfortunately, like all diesel engines, it can break down. So what to do in such a situation? There are only two ways of development.
If you have already repaired a diesel engine and know almost everything about it, then your path is to fix the problem yourself. Those who have no experience in repairing and servicing a Cummins diesel engine may choose another path.
In this case, you will have to tow the car to a service center, where they can fix all the problems.
If you decide to tackle the broken engine, then it’s worth noting right away that you shouldn’t start a Cummins diesel from a tow. It is also not recommended to “light it”. If you do this, then the likelihood that the engine will not only not start, but will also break down is very high.
We must not forget that cars with a Cummins engine have an electronic control unit, which in turn controls all systems of the power unit. If you try to start the engine from someone else's battery, then during such a start voltage surges may occur, which can damage any sensors or the electronic control unit.
As a matter of fact, for the same reason it is not recommended to start a diesel engine from a tugboat.
Cummins diesel diagnostics
When any equipment fails, we diagnose it. Also here. When a Cummins diesel engine does not start, it is necessary to carry out diagnostics, but this does not mean that you need to connect a computer to the electronic unit. Not at all! First you need to find out what condition the battery is in.
If the starter does not turn the engine or turns it too slowly, then most likely the cause of your problem is the battery. In this case, try first charging the existing battery or replacing it with a new one.
Let's now look at some more malfunctions that can occur if the lights on the dashboard come on when you turn the ignition key, but the starter doesn't even click.
There are possible problems here such as:
- Lost contact on the starter
- Starter relay burned out
- The ignition switch is faulty
- The solenoid relay is faulty
It is best to call a specialist if you have never dealt with car wiring.
He will be able to quickly and efficiently eliminate all faults.
The main thing to remember is that an inexperienced hand in the electrical wiring of modern cars can cause big problems with the equipment itself, and all this can also cost a tidy sum, for example, due to incorrect connection of contacts.
Based on this, we can conclude that you should not skimp on an experienced specialist, since his experience will not only help you do everything efficiently, but will also allow you to save a large amount of money, since you will not have to restore the car after unqualified intervention in its systems .
and if you no longer remember when you changed the filter, or simply did not track changes in the mileage of the car, then you just need to check the condition of the replacement filter cartridge
It is also worth paying attention to the presence of water in the filter housing
If you find that there is quite a lot of water, then this could be the real reason why the diesel engine is unable to start. To eliminate this malfunction, it is imperative to replace the fuel filter and bleed the system so that all excess water comes out.
Causes of poor engine starting "hot"
For a novice car enthusiast, a difficult start when hot looks like something supernatural. Why is the engine difficult to start? Just half an hour ago I started the car with half a click, a hot engine is guaranteed, but now the car won’t start! Miracles, and that's all. No magic - banal mechanics and physics. If the car does not start when hot, the reason may be a malfunction of some sensor. Incorrect operation of one sensor can cause engine failure as a whole.
When carrying out maintenance, it is necessary to check the functionality and condition of the sensors. Their incorrect operation is often a problem that makes the engine difficult to start when hot. When carrying out the replacement procedure, use tools for installing electrical contacts; they reduce the risk of failure.
You can use Electronic-Spray for electrical wiring.
Low quality gasoline
There is no common method for assessing fuel quality. You have to use indirect signs, for example, a bad factory after refueling at an untested gas station. At the same time, while your car does not start, there is a high chance of the battery dying, “killing the spark plugs,” clogging the injector, and even destroying the engine in case of improper detonation.
If the engine does not start well when the engine is hot, the reason is probably due to unsuccessful refueling. The solution to this problem is the use of additives in the gas tank that improve the basic characteristics of gasoline.
To protect yourself from the consequences of refueling with low-quality fuel and keep the injector in good condition, we recommend that you always keep on hand the long-term injector cleaner Langzeit Injection Reiniger for gasoline engines and the long-term diesel additive Langzeit Diesel Additiv for diesel engines.
It is recommended to use these fuel additives when refueling at untested gas stations, as well as on highways.
Air filter problems
In winter, when there is a large temperature difference, a possible cause of problems such as icing of the air filter. Lack of air is also a reason that prevents the car from starting. In this case, it is recommended to immediately replace the air filter at the first sign of trouble. The procedure is quite simple and does not require special skills.
IMPORTANT! One of the key factors causing a vehicle to start poorly when cold may be incorrectly selected engine oil. If you fill in oil with a viscosity of 10W-XX and higher, and there is severe frost, the oil thickens and its pumpability in a cold system drops sharply, which leads to significant wear on the engine at start-up; As a result, the car will not start.
In winter, it is important to choose only high-quality oils from trusted manufacturers, as this guarantees that the oils comply with the declared parameters of “behavior” in the cold.
There is a spark; gasoline is supplied to the gazelle; the engine injector does not start.
If there is leakage from the throttle body, then it is not oil, but antifreeze. You fill the spark plugs, it won’t start at all. Tried starting it with a gas engine. bayan:
Added after 2 minutes 27 seconds Gasoline has been filled since September, and as I understand it, the car sat motionless all winter.
The gas pedal does not respond to the engine at all. I got two charged spare spark plugs from my battery. So it can't be because of gasoline? I'll try with a push.
Added after 2 minutes 20 seconds Yes, the car sat all winter, at the beginning of winter I started it a couple of times, and even then with difficulty. After this it won't start at all.
Not only that, the coolant temperature sensor plays an important role, the price of the part is 120 rubles, in addition, the specified sensor is not tested if MIKAS 5.4 is installed. buy it, connect it without installing it in the thermostat, if it’s the one that will start the car.
The possibility of valves sticking cannot be ruled out.
You can simply remove the connector from the DT. In this case, the ECU will see a temperature of 0 degrees. I would also try removing the MAF connector.
If tasol gets into the injector, how can antifreeze get into the injector? Or rather, what do you mean by “injector”?
then during startup there will be a vacuum in the intake and all this will fly into the combustion chamber, and during startup and during operation there should be a vacuum in the intake. Without it, the engine will not start. This is one of the cornerstone conditions for the operation of an internal combustion engine. In general, these two phrases are absolutely incomprehensible to me personally.
How can antifreeze get into the injector? Or rather, what do you mean by “injector”?
both during startup and during operation there should be a vacuum in the intake. Without it, the engine will not start. This is one of the cornerstone conditions for the operation of an internal combustion engine. In general, these two phrases are absolutely incomprehensible to me personally.
Tasol enters the injector from the heated valve as described above.
It is clear that there is a vacuum in any case, both during starting and during operation. I just wrote it this way to make it clear.
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Cummins Engine Troubleshooting
If, after the third (fourth) attempt, you cannot start the engine, you should seriously think about troubleshooting.
First of all, without leaving the cabin, you should make sure that the battery charge level is sufficient for the launch. If the indicator on the dashboard does not warn about a lack of accumulated electricity, they usually start checking the functionality of the injectors.
Their serviceability may be indicated by the presence of bluish smoke at the exit of the exhaust pipe, even with unsuccessful starting attempts. In the case when such smoke is not observed, the likelihood of clogging the working nozzles is very high. For more detailed diagnostics, the injectors are unscrewed from the holes in the head and checked on a special stand.
If, when cranking the crankshaft, bluish smoke is still released, then most likely the cause of the problem is a compression problem. Depressurization of the cylinders can be observed on all, or on several or even one cylinder.
In the latter case, the engine, after repeated attempts, should start, but it will work extremely unstable with a loud, characteristic roar.
The cause of a leak in the working cylinders may be:
- wear of compression rings;
- wear of the contacting surfaces of pistons and cylinders;
- damage and wear of valve plates.
Defective parts, such as rings or pistons, are replaced with new ones, and cylinders and valves, if they are repairable, are restored or also replaced.
If, when you turn the key, the crankshaft does not start to rotate at all, it is necessary to check the reliability of the electrical circuit connections and, possibly, the functionality of the electric starter itself.
- The difficulty of starting in the cold season is aggravated by an increase in the viscosity of the lubricant, which makes it difficult to achieve the required engine speed.
- However, there are a number of ways to make it easier to start the engine at negative air temperatures.
- Thanks to this, the starter develops a higher rotation speed, which makes the starting process easier.
Engine decompression is carried out by connecting the internal cavities of the cylinders to the atmosphere. Simply put, by unscrewing and disconnecting the nozzle.
The Cummins fuel system consists of several main elements: a fuel line, or ramp, an injection pump, a control module with a sensor system, a fuel filter, injectors, and a fuel tank.
As a rule, the manufacturer Cummins guarantees that engines will operate for at least 500 thousand km before major overhaul. But, like any equipment, engines sooner or later need repairs. Read about how to properly repair an engine here.
As a rule, one or more working cylinders are decompressed, as a result of which the resistance to rotation of the crankshaft sharply decreases. Having started the engine on the remaining cylinders and warmed it up to the required temperature, the engine is turned off, decompression is eliminated and it is started again.
However, the most progressive way to start a diesel engine in the cold season is to use chemical aerosols, which are flammable substances. Aerosols are sprayed into the air filter pipe immediately before you are about to start the engine.
Emergency way to start a Cummins engine
For example, if you are forced to stop in the cold, after the engine has cooled, you may find that the Cummins GAZelle does not start. If it is not possible to solve the problem using traditional methods, one of the old-fashioned methods will help start the engine, namely, towing the car.
At the same time, the engine crankshaft spins through the drive wheels of the vehicle. If, after several such attempts, the engine still does not start working, then during towing, they also begin to purge the cylinders, smoothly, but all the way, pressing the gas pedal.
As you can see, there are plenty of different ways to make starting a diesel GAZelle easier. But the surest and most correct decision, thanks to which you can not only start your car engine without difficulty, but also protect it from possible troubles, is to properly store the vehicle in a heated garage.
Intake air heating coil
For the fuel mixture to ignite, it must be at a certain temperature. And in order for the mixture to reach the desired temperature, Cummins ISF 2.8 engines have an element called an intake air heating spiral (candle).
This engine element starts working at low temperatures. It is located in the engine intake manifold and starts working after turning the ignition key. In principle, in the summer, when it’s warm outside, you can do without this detail. But on frosty days, starting the engine with the intake air heater not working will be very problematic.
Therefore, in the cold season, the first thing you need to do is check whether the intake air heating coil is working. This is easy to do - when the spiral is running, the intake manifold should be warm.
It is necessary to inspect the contacts of the spiral and the wires going to them. It often happens that the wires simply break. But sometimes it happens that the spiral itself fails. In this case, only replacing it will help.
What to do if the Gazelle stalls while driving?
If the Gazelle stalls while driving, then the first thing you need to do is look at the fuel, or rather its supply.
It is necessary to inspect the engine compartment for fuel leaks. It happens that due to vibrations, the fixing bracket unscrews and the tube from the injection pump to the ramp bursts.
Even a small crack in the tube will be enough for the pressure in the system to drop and the engine to stop working. This phenomenon is usually accompanied by a yellow check.
If everything is in order with the tube from the injection pump to the ramp, we recommend continuing to inspect the fuel system and pay attention to the fuel filter housing. Sometimes it happens that its top cover fails and air begins to leak through it.
Disassembling the starter
If the problem is not in the retractor, let's check the starter motor itself.
We remove it from the car and disassemble it. There is nothing particularly complicated here.
- Unscrew and remove the retractor.
- Remove the retractor rod.
- Remove the starter rear cover by unscrewing the two screws securing it and removing the retaining half-ring in the center.
- Slide the motor stator along with the housing off the studs.
Now you need to carefully examine the condition of the collector contact pads. If they are very worn, you can try sanding them to a smooth surface.
We look at the wear of the brushes. We change them if necessary.
Using a multimeter, we check whether the windings are shorted to the housing, and that there are no internal short circuits or breaks in the windings. If there are any, we take the starter for repair or replace it with a new one. You can't do anything here on your own.
Low compression
If the engine throws oil out through the breather or consumes it in large quantities, and the operation of the car is accompanied by bluish smoke with a characteristic burning smell, then most likely the internal combustion engine has problems with the piston group and in particular with the piston rings.
When the piston group wears out in the cylinders, compression drops and therefore, again, the pressure in the cylinders necessary to start the engine will not be created. In such cases, only a major overhaul of the internal combustion engine will save you.
How to check injectors on a Gazelle with a Cummins ISF 2.8 engine yourself
In order to independently check whether the injectors are draining into the return line, you need to use ordinary medical syringes. For more information about this, watch Denis Gorban’s video
If the injectors are delivering too much fuel to the cylinders, the fuel mixture will not be correct and the fuel will not burn completely, causing you to see thick black smoke coming from the exhaust.
Thick black smoke may also be due to a clogged air filter, but if the cause lies in the injectors, we recommend that you stop using the vehicle immediately. Otherwise, due to too high a temperature in the combustion chamber, the engine may overheat or the piston may melt, which in turn will lead to expensive overhauls.
Valves and cylinders
Quite a few motorists monitor the condition of the power unit. As you know, wear and tear does not spare anyone or anything, and accordingly, burnout of valves and pistons can lead to the fact that at first the engine begins to start poorly, and then stops altogether.
The second nuance is the high degree of wear of the valves, which is why they do not fit tightly to the seats. Gasoline drips through the cracks into the cylinders. It turns out that there is an overflow of fuel, and since the spark plugs are filled, the power plant does not start due to the lack of a spark.
