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1997 GMC C1500 Sierra SL 5.7L Poor Idle Quality, Misfire, MIL Lamp on
Posted to GM Driveability on 10/30/2005 21 Replies

Vehicle came in with CEL on and engine misfiring, pulled code P0300. found #5 spark plug fouled with fuel deposits. Vehicle had Bosch Platinum plugs, original wires,cap, rotor and fuel filter, air filter was clogged and PCV valve was not funtioning. Replaced #...

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  Related Documents & Media  1997 GMC C1500 Sierra SL

 
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car Vehicle Data

1997 GMC C1500 Sierra SL

VIN [No VIN Available]
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursIdle

Trouble Codes

P0300Multiple Misfire Detected
Message Closed

car Vehicle Data

1997 GMC C1500 Sierra SL

VIN [No VIN Available]
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursIdle

Trouble Codes

P0300Multiple Misfire Detected