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1999 Chevrolet Blazer 4.3L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Misfire, Poor Fuel Economy
Posted to GM Driveability on 8/14/2009 15 Replies

This truck belong to my co-worker. trying to help her out. #3 and #5 cyl misfire. plugs get fouled up after 30 kms of driving, quicker with towing. she replaced it with electronic injector update, with the same results, the intake was car-boned up that when th...

15 Replies Received (View Replies)

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car Vehicle Data

1999 Chevrolet Blazer

VIN 1GNCT18W6Y
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Idle Quality, Hesitation, Surge, Misfire, Poor Fuel Economy
OccursAlways
Message Closed w/FIX

car Vehicle Data

1999 Chevrolet Blazer

VIN 1GNCT18W6Y
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Idle Quality, Hesitation, Surge, Misfire, Poor Fuel Economy
OccursAlways