Question about 1988 Cadillac Sedan DeVille
Thank you for your help, I will check egr valve asap!! Would you know why my engine idles high?? I mean I can be at a stop light and take my foot of the brake and the car goes by itself, and it gets good speed like that???
If your EGR valve is stuck open its adding "false" air into the cylinders. (just like a vacuum leak) the engine will raise its idle speed to prevent the engine from stalling at idle. the EGR should not be open at idle.
Posted on Feb 01, 2009
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Posted on Jan 02, 2017
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