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REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Nissan Sunny (from 1991 to 1997, the year of issue)

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Nissan Sunny
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Be healthy diesel



Motor sneezed once, twice, and was still ... Everyone who got into such a situation, surely knows what goes through a swarm of questions in my head during unsuccessful attempts to re-launch the "heart" of the "iron horse." Owners of cars with diesel engines are no different from all the others, but the reasons for the trouble with diesel engines and their solutions are largely specific to this type of engines. In order not to complicate your life, it is better to see the advices of professionals with a solid practice in this area.

They appealed, and this time, pocherpnuv lot of useful information, and quite easy to implement practical advice.

The biggest surprise is the fact that yesterday did not cause trouble engine suddenly flatly refuses to "come alive" at the very moment when you morning rush to work. If this happened the first time, but still accompanied by white exhaust, almost with certainty we can say that vivnovaty glow. By the way, the indicator on the instrument panel may be wrong, claiming that candles all "okay". To check one end of the wire is fed to the "plus" the battery, and the second applies voltage directly to the candle. If the spark jumps good (it is not difficult to distinguish from the bright flash of a short circuit), the wire nachinanet warm, and then the engine starts, the candles here at anything. Problems to be found in electrical circuits, voltage feed on them. This way you can also check the fuel supply valve.

And finally, the only blame yourself if it tried to start the car on the move. Timing belt at the same time could easily slip a few teeth. Start the engine and can not, you may need to prepare for the complex and costly engine repair.

As experience shows, it is very common and is a different situation - the engine is idling, and when you try to add revolutions immediately stalls or stops almost worked. Most likely, the fuel system is air. It should once again draw attention to the exhaust. In this case, it is usually white with a characteristic smell of diesel. The vacuum in the fuel stream can arise due to blockage, for example, fuel standpipe or fuel filter. Most often it is the fuel filter is clogged, with such troubles occur mostly in the winter.

The company's specialists "Tehnodizel" advised to adhere to all rules, no exceptions, never repair the fuel filters. A variety of "washing", "blowing", and others, ostensibly restoring procedures, at best simply will have no effect, and at worst - even aggravate the situation. Fuel passes through a "restored" filter, not only receives the cleaning position, but also washes out of the filter all the accumulated dirt in it before. It's pretty fast can damage the precise mechanism of the high pressure pump.

Another psevdopomosch motors that provide like "know" mechanics - installation of several fuel filters. From the standpoint of achieving an unprecedented purity of diesel fuel into the engine of meaning in this multi-stage filtration no. Manufacturers have diesel vehicles is carried out precise calculations of performance filters, which are supported by the whole series of tests, so they should trust. More filters not only useless but harmful. They create excessive resistance, whereby the pump works with congestion and quickly breaks down. The increased resistance in the pipe can also cause air suction.

You should not go on about, and another fairly common misconception that the additional filters promote separation of water from the fuel. In fact, the filters do not retain water, for this purpose there are special sedimentation separators. The presence of such a separator indicates a small tube under the filter bottom. Drain accumulated moisture should be approximately every 3,000 kilometers. Drain the liquid should be as long as the flow is almost pure diesel fuel.

The presence of water also causes the fuel exhaust white clouds. Some modern diesel cars have an indicator on the instrument panel, which tells that there is water in the fuel. If the indicator lights up, it is better not postponing, stop, switch off the engine and drain the liquid from the separator. If necessary, repeat the procedure. If after this warning indicator does not want to fade, it is probably a problem in the electrical circuits of the system indicate the presence of water in the fuel. Trying to fix something on the bottom in a hurry is not necessary, it is better creep into auto repair.

Sometimes, such that approximately gudevshy engine suddenly for no reason at all stops. Most trivilny Council, which, oddly enough, helps in many "serious" cases, - make sure that the tank still has a diesel fuel. If the case is worse, and something really happened, it is worth to recall whether there was any sharp sound before the engine stopped. So the sound is accompanied by a broken timing belt. If so, you'd better not try to scroll through the engine - the consequences could be devastating.

Another reason for the sudden stop of the motor can be all the same air in the fuel system. You can try to directly connect the pump to the fuel tank with diesel fuel each. If the engine starts to work, the cause is found. If you experience problems with the fuel pump is best to consult specialists, not trusting questionable repair mechanics.

When the pump is excluded from the possible perpetrators of trouble, you can try to weaken the unions on the injectors. If during attempts to start the engine from the pulsating jet of them starts to flow diesel fuel, which means that the faulty injector does not allow the normal flow of fuel into the combustion chamber. Did you notice that threw black smoke exhaust - is one of the signs hang in the nozzle needle. Fuel begins uncontrolled flow into the cylinder, and the exhaust is black due to its incomplete combustion.


A warning

And one more thing - do not need to go dashing through deep puddles. Masters often seen crippled after such bathing motors diesel cars. The water from a puddle gets into the combustion chamber, and a strong hydrodynamic blow bends even Robust rods!






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