
2004 GMC Envoy SLE 4.2L MIL Lamp on
thanks for any help - this envoy came in with po171 lean condition - & air pump codes - replace siezed air pump & divertor valve on side of block,replaced spark plugs due to milage . smoke tested intake system hot & cold - found no leaks - disconnected brake b...
FIX posted 8/26/2014
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Message Closed w/FIX
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VIN | 1GKDT13S74 |
Engine | 4.2 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |
Message Closed w/FIX
Vehicle Data
2004 GMC Envoy SLE
VIN | 1GKDT13S74 |
Engine | 4.2 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |