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1998 Chevrolet K1500 Cheyenne 5.0L Misfire, MIL Lamp on
Posted to GM Driveability on 5/5/2005 17 Replies

Hi Guys, This truck came in last summer with a SES light on, another tech in our shop found a random misfire code and the customer confirmed that the truck indeed had a skip if you put it under a load for a long time(long steep grade). At that time the truck s...

17 Replies Received (View Replies)

  Related Documents & Media  1998 Chevrolet K1500 Cheyenne

 
Message Closed w/FIX

car Vehicle Data

1998 Chevrolet K1500 Cheyenne

VIN 1GCEK19MSW
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / CPI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursHot, Under Load, Intermittently

Trouble Codes

P0300Multiple Misfire Detected
P0420Catalyst Efficiency Below Threshold (Bank 1)
Message Closed w/FIX

car Vehicle Data

1998 Chevrolet K1500 Cheyenne

VIN 1GCEK19MSW
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / CPI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursHot, Under Load, Intermittently

Trouble Codes

P0300Multiple Misfire Detected
P0420Catalyst Efficiency Below Threshold (Bank 1)