Can EGR valve make noise?

Can EGR valve make noise?

If the EGR tube breaks or comes loose, it can cause rattling noises as a result of the metal tube vibrating. The noise may be quiet at idle, and become more noticeable when accelerating.

What happens if an EGR is stuck closed?

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.

Why is the DYI EGR cooler bypass valve actuator leaking?

In short: this was caused by the EGR cooler bypass valve vacuum actuator leaking, which in turn would affect also the turbo boost of the car whenever it tried to activate these both at the same time. In order to understand what and why to do, I will do some explanation first.

How does the EGR cooler work in a car?

The cooled gases are then routed back through the EGR pipe to the EGR valve, which might or might not allow them to mix with the fresh air, and enter the combustion chambers. The EGR cooler has a mesh-like structure inside, similar to that of the radiator at the front of the car.

What causes idle surges on a car ECM?

Idle surging can be caused due to other issues in the car, but if it happens in conjunction with other throttle position sensor symptoms, the culprit is often the TPS. At idle, the ECM will not get the correct information and the throttle will variate randomly causing idle surges.

What are the symptoms of a bad throttle position sensor?

A faulty throttle position sensor sends incorrect information to the ECM resulting in various issues in the engine, its performance, and fuel economy. Below are common symptoms of a faulty TPS. In most of the cases, all of these symptoms will show together making it easier to detect the faulty component. 1) Car Jerks