Having problems with your 2004 GMC Envoy ?

Where is the egr valve located on a 2004 gmc envoy xuv, and will a bad egr valve cause rough idle and rougher idle when ac is turned on?

Posted / edited by AnonymousUser on : 15-01-2018

Answers :

Yes it could cause that. the EGR is near the rear of the engine, if it is leaking it will sizzle water when you touch it with wet fingers.
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