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GMC
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Engine
Symptoms
Idle Erratic
GMC SIERRA ENGINE IDLE ERRATIC
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Found 2 results
Erratic Idle
Idle Oscillates From Slow To Fast And If The Throttle Is Opened A Bit It Speeds For About 30 Seconds, Then Backfires Through The Tbi And...
Asked by
baggypants
·
1 ANSWER
1990
GMC SIERRA
VIDEO
Vacuum Leak Test and Repair
Instructional repair video
GUIDE
Idling High
Intermittent sensor failure or shorting can cause the computer to act strange with unusual side effects, these problems are particularly tough to diagnose. The computer...
1991 GMC Sierra Idle
Engine Performance Problem 1991 Gmc Sierra 6 Cyl Two Wheel Drive Automatic When I Start My Truck In The Morning During The Hot Weather...
Asked by
Murph2
·
10 ANSWERS
1991
GMC SIERRA
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