Gazelle won't start: reasons

Causes

Not for various reasons. Some of them are related to the time of year, while others are related to wear and tear. This problem can also be caused by the negligence of drivers who are careless about the maintenance of the power unit.

So, if not, there may be several reasons:

malfunction of fuel system components;
problem in valves and cylinders;
malfunctions in the ignition system;
breakdowns in the starter and battery;
air supply;
sensors and control unit.

Why doesn't the injection Gazelle 405 start? Main reasons

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.

Possible malfunctions of GAZelle Next

The car accelerates poorly

There are many reasons for the deterioration of dynamics, the main ones can be defined as follows.

Engine malfunction - reduced compression in one or more cylinders, coking of the exhaust system or damage to the exhaust gas catalytic converter.

Malfunction of the power system - clogging of the engine fuel injectors, fuel filter, pipes and hoses of the fuel supply system. Use of low quality fuel.

A malfunction of the supercharging system is a failure of the turbocharger or a loose fit of the system hoses on the intercooler or turbocharger pipes.

Engine management system malfunction - system sensor failure

If any sensor fails, the electronic control unit switches to working according to a backup program, allowing you to get to a garage or car service center, but at the same time the power and economic characteristics of the engine are reduced.

Clutch slipping due to wear or malfunction of the clutch release drive.

Malfunction of the brake system - braking of one or more wheels while driving, incorrect adjustment of the parking brake.

Insufficient air pressure in tires.

Vehicle overload.

Check and adjust tire pressure to normal.

Check the operation of the service brake system and parking brake

It is not necessary to remove the wheels for this. Find a flat section of the road and, in dry, windless weather, conduct a test run to determine the vehicle's run-out.

The car must be fully fueled, with only the driver in the cabin. Accelerate the car to 50 km/h, level out the speed, then switch off the gear and coast until it comes to a complete stop.

Do another run in the opposite direction. The run-out should be about 500 m.

Check clutch operation

The initial check is carried out on a level area free of obstacles. Set the accelerator pedal to a higher idle speed - approximately 1500 min-1.

Brake the car with the parking brake. Depress the clutch and engage first gear.

Then begin to smoothly release the clutch pedal. If the engine stalls, the clutch is working properly and is not slipping.

If the engine does not stall, the clutch is worn out and requires replacement (manual adjustment of the clutch in operation is not provided; wear is automatically compensated by a special device in the working cylinder of the hydraulic drive).

The engine stalled while driving

First, find out if there is fuel in the tank. Turn on the ignition and look at the fuel gauge.

If the orange fuel reserve lamp is not lit and the indicator arrow shows the presence of fuel, it can be assumed that there is fuel in the tank.
Open the hood and carefully inspect the engine compartment.
Pay attention to the integrity of all units.
Check if all the wires are in place, if there are any torn, burnt or damaged insulation.
Inspect the supply line; it may be pinched or clogged (in particular, with paraffin deposits, usually due to low quality diesel fuel or inconsistency with the operating season, in this case after parking the car for several hours in a warm room at an air temperature of at least +10° The engine starts without problems).
Wax deposits typically accumulate either in the fuel filter or in the pre-filter screen in the fuel receiver module installed in the fuel tank.
Clogging of filters with paraffin can also cause clogging of injectors.
Check the injection system fuse installed in the mounting block (article - Replacing fuses and relays for GAZelle Next).
Replace the blown fuse.
Inspect the cooling system expansion tank to see if coolant has leaked.

Also check the oil level in the engine crankcase. If everything is in order, proceed to check the engine management and power systems, which are described earlier.

In addition, a sudden stop of the engine and the inability to start again can be caused by a failure of the crankshaft position sensor or a disconnection of the wiring harness block from it.

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 .

So, if you have made sure that everything is fine with the starter and battery, but the engine still does not start, then you should check the fuel system. Remember how long ago you changed the fuel filter? It is worth remembering that the fuel filter is replaced every 10 thousand km.

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.

What to do if not with a Cummins engine?

Problems with starting in cold weather are one of the main disadvantages of all diesel engines. This problem is a consequence of the peculiarities of their design and operating principle, and therefore cannot be solved fundamentally. However, there are workarounds that are quite effective.

For example, in Cummins engines, unlike conventional diesel units, the fuel supply is regulated by an electronic control unit rather than a mechanical fuel pump.

Thanks to this, in American engines a more homogeneous air-fuel mixture is achieved, which ultimately facilitates its self-ignition.

However, this does not completely solve the problem, and in severe frost even a Cummins engine can be capricious.

Causes of cold start problems

Before you begin to consider starting methods in cold weather, you should make sure that the car itself is in good working order, since the cause of the problems may be a breakdown, and not frosty weather at all.

Source: https://AutoManya.ru/sovety/ne-zavoditsya-gazel-405.html

Fuel cells

It is worth understanding that almost all elements affect the starting 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.

Special cases

In addition to all of the above, other adventures happen 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 its place.

Your task is simply to open the hood and check if the chain is in order

, if not, then put it in its place. This procedure will take you 10 minutes at best, but you will be able to start your car. Otherwise, the Gazelle 405 injector does not start due to other problems.

It is quite difficult to answer this question, so we have simply listed for you several of the most common breakdown options. You can get an accurate answer only after a thorough diagnosis. It is at this stage that you can find out the reason why the car refuses to start. Therefore, do not rack your brains and better contact a car service center.

Yes, you will spend money, and most likely a lot, but at least you will be able to continue to quietly drive around in your gazelle.

Hi all . A friend has a gazelle, he capitalized on the ZMZ 405 ENGINE and is already assembling a second engine, but he has a problem. I assembled everything and connected it. it starts, it won't start, there is a popping noise in the intake manifold, what could it be? there are spark marks, I checked it twice, but there’s definitely something wrong, has anyone come across this?

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.

Fuel injection system failures

For normal injection, the electronic control unit needs to receive and process information from several sensors in real time. Problems with the meters, communication links, or main module may cause the injector to stop working properly. Because of this, starting the engine will become significantly more difficult, even to the point of complete failure.

To solve problems with sensors, they need to be checked. It can be done indirectly using a multimeter. Car owners recommend sequentially replacing installed meters with known good ones.

If the start-up becomes normal, then the culprit of the problem is the last replaced element.

To solve problems with the electronic control unit, a diagnostic scanner is required. It should be used to count errors. After deciphering them, a decision is made on further repairs.

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 car doesn’t start well when it’s hot: we look for and fix the problem

Modern cars are gradually moving from the concept of mechanisms to the concept of organisms. This is a highly complex system that requires ideal operating conditions. High engine power, squeezing everything that can be squeezed out of technology, and other features of the modern automobile industry indicate that modern cars must receive maximum care in order to work for a long time. One of the common problems that arise from improper car care is poor engine starting after it warms up. This means that if you park for a few minutes near the store, you will not be able to start the engine properly. The problem lies in two possible types of breakdowns, but there are also extraordinary cases. Today we will deal with the most common problems in this case, and also talk about specific types of problems.

It should be noted that the symptoms of poor hot starting can manifest themselves in different ways. One car refuses to start at all until the engine cools down a certain amount. Another power unit starts only on the third or fourth try, and the third one simply has to be cranked for a long time to start. In any case, no matter what happens to your car in this context, you need to find the problem and be sure to fix it. This task is a harbinger of more serious breakdowns, the repair of which will cost you much more money. So let's figure out why the car doesn't start well when it's hot.

Bad fuel or presence of additives in the fuel mixture

Low-quality gasoline or diesel fuel is one of the most common variants of this problem. But in this case, you can conduct an experiment that will show the true problem of your car. The fact is that low-quality fuel with a poor start when hot will have an even more unpleasant effect when starting the engine when cold. Therefore, it is enough to cool the car, wait for the engine to return to normal and start it. The following problems may also occur with fuel:

Gasoline or diesel fuel may contain an additive that your engine does not accept;
diesel fuel has frozen and acquired a jelly-like form, which is difficult to pump;
there are solid particles in gasoline, the filters are clogged, and it is difficult for the pump to pump the required amount of fuel;
the settings of the engine control system and air supply have gone wrong, one of the valves may have broken;
the idle air valve, as well as the mass air flow sensor (mass air flow sensor) can cause such problems;
It’s just a functional feature of carburetor engines – a very hot unit has difficulty starting.

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.