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1990 Chevrolet S10 Blazer 4.3L Misfire
Posted to GM Driveability on 10/15/2001 15 Replies

Hi, and thanks again for your time and imput. This customer, former mechanic and shop manager, does all his own work. So we see his vehices only for the realy good problems. Under heavy acceloration the truck falls on its face and backfires through the intake....

15 Replies Received (View Replies)

  Related Documents & Media  1990 Chevrolet S10 Blazer

 
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car Vehicle Data

1990 Chevrolet S10 Blazer

VIN 1GNCS13Z3M
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / tbi
SymptomsMisfire
OccursUnder Load, on Accel
Misc.Tbi

Trouble Codes

42esc electronic spark control
Message Closed

car Vehicle Data

1990 Chevrolet S10 Blazer

VIN 1GNCS13Z3M
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / tbi
SymptomsMisfire
OccursUnder Load, on Accel
Misc.Tbi

Trouble Codes

42esc electronic spark control