How does an EGR actuator work?
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The EGR system works by returning a small portion of exhaust gas to the engine's combustion chambers through the intake manifold, lowering combustion temperatures and therefore reducing the amount of NOx emitted. The EGR valve is the main component of the EGR system and it's normally closed.
EGR valve: problems & symptoms
The most common problem with an EGR valve is when carbon build up on the valve cause it to stick (see the photo below). In worst cases, an EGR valve and the EGR passages can be completely clogged up. Symptoms of an EGR valve that is stuck open include rough unstable idle and stalling. Often a car stalls when stopping after exiting the highway.
If the EGR system is clogged up, or the valve is stuck closed, the combustion temperature increases. This may cause pinging (detonation), as well as surging on light acceleration. In a diesel engine, a bad EGR valve is one of the causes of a black smoke. The Check Engine light might also come on in either case.
Genuine Proton Vacuum Actuator (iAFM).
Part no. PW810695
Suitable for:
Proton Gen2
Proton Persona
Proton Saga BLM, FL, FLX
and etc
No WARRANTY or RETURN for all original parts. Buyers are assumed to agree with term of sale upon purchasing.
Malaysia
