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1996 Chevrolet Blazer 4.3L Poor Idle Quality
Posted to GM Driveability on 6/13/2001 10 Replies

I don't even know where to begain. When you start it up and put it in gear on a warm motor the engine will idle up then down and start running bad for 5-10 seconds then run normal. With scan tool hooked up the spark advance goes from 20 degrees to -15 degrees ...

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car Vehicle Data

1996 Chevrolet Blazer

VIN 1GNDT13W3T
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality
Message Closed w/FIX

car Vehicle Data

1996 Chevrolet Blazer

VIN 1GNDT13W3T
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality