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1991 GMC Safari SLE 4.3L MIL Lamp on, runs poorly
Posted to GM Driveability on 11/30/2001 8 Replies

Hello Techs:

This van arrived at our door with a drivability problem and the service engine soon light on. The vehicle has been sitting unused for the summer and is being brought into n service for the winter. The customer says the van runs ok for the first f...

8 Replies Received (View Replies)

  Related Documents & Media  1991 GMC Safari SLE

 
Message Closed w/FIX

car Vehicle Data

1991 GMC Safari SLE

VIN 1GKEL19Z7M
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI
SymptomsMIL Lamp on, Runs Poorly
OccursUnder Load, Intermittently
Misc.Van

Trouble Codes

42EST electronic spark timing
Message Closed w/FIX

car Vehicle Data

1991 GMC Safari SLE

VIN 1GKEL19Z7M
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI
SymptomsMIL Lamp on, Runs Poorly
OccursUnder Load, Intermittently
Misc.Van

Trouble Codes

42EST electronic spark timing