Question about 2004 GMC Envoy
Easy one, when you changed the thermostat, you probably unhooked the battery, very common. Remove fuses 10 and 28 under the hood, then remove your throttle body and clean it with a sensor safe spray like seafoam. When done, put fuses back in and drive around a while with hvac all on off. The computer will relearn the newly cleaned throttle body. Your problem will go away.
Posted on May 09, 2017
The throttle body needs to be cleaned, grime in this area prevents the throttle plate from closing completely and allowing air to enter, making the air/fuel mixture lean.
Posted on Oct 23, 2010
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Posted on Jan 02, 2017
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