2003 GMC ENVOY
131,900 MILES
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i have a 2003 envoy and the motor is a 4.2...when i turn my defroster on the motor idles way down and sometimes dies

Mar 25, 2013 at 5:26 AM
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ASEMASTER6371
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sounds like a idle air control valve that is not functioning.

Roy
Mar 25, 2013 at 10:42 AM