What would make the engine races/rev when it first starts and if I am traveling at about 40 mph?
Oct 26, 2012 at 4:47 PM
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KHLOW2008
CERTIFIED EXPERT
41,814 POSTS
A faulty IAC or vacuum leakages are th most common causes. If the Malfunction Indicator Light is showing, retrieve the trouble codes and let us know what it is.