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International Automotive Technicians Network
1991 Chevrolet V1500 Suburban Scottsdale 5.7L Misfire
Posted to GM Driveability on 11/7/2007 18 Replies

Hello techs, any ideas?? Feels just like secondary ignition missfire, all components have been rechecked. When missfire occurs with timing light hooked up, timing seems to momentarily advance,in sync with miss. Have had at two other shops, but they cant seem t...

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Message Closed w/Summary

car Vehicle Data

1991 Chevrolet V1500 Suburban Scottsdale

VIN 1GNEV16K1M
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
EmissionsUS Fed emissions
SymptomsMisfire
OccursIdle, Just Off Idle
Message Closed w/Summary

car Vehicle Data

1991 Chevrolet V1500 Suburban Scottsdale

VIN 1GNEV16K1M
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
EmissionsUS Fed emissions
SymptomsMisfire
OccursIdle, Just Off Idle