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2002 GMC Sonoma SL 4.3L Misfire
Posted to GM Driveability on 12/23/2009 12 Replies

po300 checked fuel pressure and found low, replaced fuel pump. fuel pressure at 56 psi. still had misfire replaced fuel injector spider rail. installed cap,rotor, plugs , wires, and found still a little misfire. found clogged converter and replaced. vehicle re...

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  Related Documents & Media  2002 GMC Sonoma SL

 
Message Closed w/FIX

car Vehicle Data

2002 GMC Sonoma SL

VIN 1GTDT19W72
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways

Trouble Codes

306cylinder 6 misfire
Message Closed w/FIX

car Vehicle Data

2002 GMC Sonoma SL

VIN 1GTDT19W72
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways

Trouble Codes

306cylinder 6 misfire