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1998 Chevrolet K1500 Cheyenne 4.3L Surge, Misfire
Posted to GM Driveability on 9/13/2004 8 Replies

This vehicle has a misfire/buck only at [...] RPM in any gear. TPS range is around 10% or less at the specified RPM. Continuos code setting of PO300. Also noted during road test that cylinders 3 & 4 are the more dominant failures. 5 mile road test will misfire...

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  Related Documents & Media  1998 Chevrolet K1500 Cheyenne

 
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car Vehicle Data

1998 Chevrolet K1500 Cheyenne

VIN 1GCEK14W1X
Engine4.3 L / 6 cyl / GAS
Trans5-speed Standard
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsSurge, Misfire
OccursAlways, Under Load, 1800-2500 RPM Only
Misc.Model# K15903

Trouble Codes

P0300Multiple Misfire Detected
Message Closed

car Vehicle Data

1998 Chevrolet K1500 Cheyenne

VIN 1GCEK14W1X
Engine4.3 L / 6 cyl / GAS
Trans5-speed Standard
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsSurge, Misfire
OccursAlways, Under Load, 1800-2500 RPM Only
Misc.Model# K15903

Trouble Codes

P0300Multiple Misfire Detected