I’ve got the symptoms of a vacuum leak; aka high idle and no power. The car is idling at 1500 to 2000 rpm. Could the EGR cause this problem? I can not find any vacuum leaks, and the EGR is the only component that I haven’t changed yet.

Answer

The EGR gasket may leak. If there are no other symptoms, the source could be somewhere else. Get the codes from the ECM first. The idle air control valve is another possibility. This one is easy to remove and check. Check all vacuum hoses with a piece of hose to listen for noises around the engine.

Updated on March 26, 2018

Original Article:

Symptoms of a Bad EGR Valve
By Dan Ferrell
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