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2002 GMC Sonoma SL 4.3L Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on
Posted to GM Driveability on 4/27/2010 11 Replies

customer came in with misfire, checked and found fuel pressure to be at 55 lbs changed fuel filter and same pressure, changed fuel pump and pressure went up to 60lbs,koeo. with engine running pressure was at 56-57 lbs, still had misfire. checked cap and rotor ...

11 Replies Received (View Replies)

  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)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Cuts Out, Stall, Misfire, MIL Lamp On
OccursAlways

Trouble Codes

300random misfire
Message Closed w/FIX

car Vehicle Data

2002 GMC Sonoma SL

VIN 1GTDT19W72
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Cuts Out, Stall, Misfire, MIL Lamp On
OccursAlways

Trouble Codes

300random misfire