Main Technics Repair Repair of a car Throttle Cleaning of CRDI Engine

Throttle Cleaning of CRDI Engine

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I'm sorry for not perfect english. In time I'll do a good quality translate. If you could not get anything please feel free to contact me in comments. I will answer you as soon as possible.

The throttle regulates the flow of air into the engine.

Over time it becomes dirty and poorly can perform its functions. Because it is contaminated crankcase oil with particles passing through it, and also because the exhaust gases. The output of exhaust gases from the EGR valve is located in the intake manifold just behind the throttle.

Symptoms, which can determine the need for cleaning throttle ... I do not know, I can only suggest a partial loss of power at high revs ...

In general, the valve will clean, and for this it needs to be removed. It is situated right in front of the intake manifold during the movement of air.

Drosselnaya valve on the engine CRDI
Drosselnaya valve on the engine CRDI

To remove it, loosen the clamp on the tube, the supply air. Then you can remove the pipe and remove the clamp. And you can move deeper on the hose clamp and tighten it. So it will be more difficult to drop down or even lose.

Oslablyaem homut

Remove the air supply pipe and begin to unscrew the screws and nuts (two nuts and two screws). One nut at the bottom, gently unscrew it, carefully pull that fell.

air inlet socket is removed. Ratcheting unscrew the screws and nuts throttle

Remove the throttle. We can only tube connected to a vacuum membrane. It is held solely by the force of friction, so that it simply shrinks.

The throttle is removed, disconnect the vacuum tube remains

Now the throttle valve can be removed and cleaned. Unlike cleaning nozzles, for this operation does not require any special tools. Only a couple of rags and solvent. If desired, you can even unscrew and remove the inner plate is very good and all washed (still need a screwdriver).

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18.08.2014 at 10:17 mohamad said:


I have the crdi cp3 engine

Suddenly became the engine does not work quickly

takes a long time to start

I changed the diesel filter

Was ending problem

The problem returned after two weeks

The second time I do not change the filter

I've put cleaning products

The problem ended again

Two days and then returned

Do you know the cause of this problem

Please, help

Sometimes does not work with me never unless if we push the car

18.08.2014 at 11:54 Georgiy said:

Hello Mohamed!

May you more detailed describe your case?

Now it seems not enough fuel pressure at common rail.

It may cause by any reason of list below:

too high return fuel rate at injectors;

wear of high pressure pump (not enough performance);

and pressure regulator.

22.08.2014 at 09:20 mohamad said:

Thank you for your answer

What is your advice? What i do

Change the diesel pump or repair

Changing the engine injectors or repair

Please help me

In my country there are no Good mechanic

Every mechanic gives me a different view

And all suggestions very expensive

now its does not work with me never unless if we push it

Yesterday, diesel filter changed again

But not work

22.08.2014 at 20:17 Georgiy said:

So, first You have to understand why the fuel pressure is not enough.

First of all I advice to test fuel injectors leak like on video:

If you injectors will have to high leak rate you have to replace or clean/repair it. If you can not find good specialist I advice to buy new injectors.