2002 GMC Envoy SLE 4.2L Misfire
Car came in for check engine light on and runs a little rough at idle. Put scan tool on and found p0303, pulled coil off checked plug swap plug and coil with different cylinder. No change. Still missing on cyl 3. Did compression test had 150 psi, cylinder leak...
FIX posted 1/23/2013
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Vehicle Data2002 GMC Envoy SLE
Trouble Codes
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Message Closed w/Summary
Vehicle Data
2002 GMC Envoy SLE
VIN | 1GKDT13S52 |
Engine | 4.2 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / EFI |
Emissions | OBD-II Compliant |
Symptoms | Misfire |
Occurs | Idle |
Trouble Codes
P0303 | Cylinder 3 Misfire Detected |