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1989 GMC S15 High Sierra 4.3L Losse of Power
Posted to GM Driveability on 12/23/2002 10 Replies

no sound of knocking,chg fuel,retard timing and alwauy the same [...] service bulletin in all-data i try a new knock sensor and no luck. some help and will be apreciate thanks.

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car Vehicle Data

1989 GMC S15 High Sierra

VIN 1GTDT19Z7K
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / tbi
EmissionsOBD1/catalist
SymptomsLosse of Power
OccursCold, Under Load, Intermittently, Mi October to Mid April
Misc.Prom Up-Date/
Message Closed

car Vehicle Data

1989 GMC S15 High Sierra

VIN 1GTDT19Z7K
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / tbi
EmissionsOBD1/catalist
SymptomsLosse of Power
OccursCold, Under Load, Intermittently, Mi October to Mid April
Misc.Prom Up-Date/