I HAVE A 2003 ENVOY AND THE MOTOR IS A 4

2003 GMC Envoy

Tiny

Anonymous

March, 25, 2013 AT 5:26 AM

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

1 Answer

Tiny

ASEMaster6371

March, 25, 2013 AT 10:42 AM

Sounds like a idle air control valve that is not functioning.

Roy

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