LEMON Manuals
: Even more car manuals for everyone
Home
>>
GMC
>>
2003
>>
Envoy RWD
>>
Repair and Diagnosis
>>
Engine Performance
>>
Specifications
>>
Engine Controls - Service & Adjustment Specifications - 4.2L
>>
Fuel Systems
>>
Idle Speed & Mixture
Idle Speed & Mixture
NOTE:
Idle mixture is controlled by Powertrain Control Module (PCM). Idle speed is preset by manufacturer and is not adjustable.