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1998 GMC K1500 Sierra SL 5.7L Poor Idle Quality, Misfire, MIL Lamp on
Posted to GM Driveability on 1/23/2002 9 Replies

About a year ago vehicle came in missing on #8 & #7 we determined those injector poppets were stuck so we replaced them. All was ok for about 6 months then he called it was missing again but before we could get our hands on it, it had cleared up and was runnin...

9 Replies Received (View Replies)

  Related Documents & Media  1998 GMC K1500 Sierra SL

 
Message Closed w/Summary

car Vehicle Data

1998 GMC K1500 Sierra SL

VIN 2GTEK19RXW
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sfi
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursIntermittently

Trouble Codes

430inefficient cat convertor
Message Closed w/Summary

car Vehicle Data

1998 GMC K1500 Sierra SL

VIN 2GTEK19RXW
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sfi
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursIntermittently

Trouble Codes

430inefficient cat convertor