GMC Sierra Engine
Browse GMC Sierra Engine questions and answers. Choose a question that matches your symptoms.
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1991 GMC Sierra Missin
My Engine Is Missing But Will Drive Fine But When I Come To A Stop It Dies My Engine Is A 5.7l V8 And I Need To Know How I Would Go About...
Asked by matt2689
1991 GMC Sierra Belt
1991 Gmc Sierra V8 Two Wheel Drive Manual
How Long Should The Drive Belt Last
Asked by coldtoke
1991 GMC Sierra Runs Rich, Wont Idle
My Gmc Will Almost Die And Then Rev Up, And Miss Badly On Acceleration. I Have Tried To Troubleshoot It And Have Not Made Any Progress. It...
Asked by bradlyct
1991 GMC Sierra Stalling And Poor Running
I Have Had Some Trouble As Of Late. When The Truck Is Cool It Will Start And Run. Soon As It Is Warm The Idling Is Rough ( It Feels Like...
Asked by turner.loose
1991 GMC Sierra Won't Start
My Husbands Truck Won't Start Unless You Spray Starter Fluid Or Gas Into It Then It Runs Good But Turn It Off And It Will Not Start Untill...
Asked by bingonanny55
1991 GMC Sierra Crankshaft Position Sensor
Electrical Problem
1991 Gmc Sierra V8 Four Wheel Drive Manual
Where Is The Crankshaft Position Sensor Located?
Asked by 1arry
1991 GMC Sierra Engine Runs Rough
When Engine Is First Started It Idles Fine. When Accelerator Is Engaged The Engine Spurts And Sputters As If It Is Getting Too Much Or Not...
Asked by tpforrest
1991 GMC Sierra 1991 GMC K2500 Sierra Hard To Start
I Have A 1991 Gmc Sierra That Is Hard To Start. It Cranks Just Fine, However, If The Engine Starts, It Dies Within 2 Seconds. This Can Be...
Asked by ARC1991
ECM Fuse Keeps Blowing
The Vehicle Runs At Idle But When Driven A 1/4 Mile Ecm Fuse Blows. I Install Another Fuse And It Repeats. Any Advice Would Greatly Be...
Asked by Gonzos11
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
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SymptomsAir FilterAir Intake TubeBlockCamshaftComputerCrankshaftCylinder HeadDrain PlugFlywheelGround StrapIdle Air ControlIntake ManifoldInterchangeKnockMAP SensorMass Air Flow SensorOil LeakOil ChangeOil CoolerOil FilterOil PanOil Pressure SensorOil PumpOxygen SensorRebuildReplace/RemoveSerpentine BeltStarterThrottle BodyTiming BeltTiming ChainTune-upTurboVacuum Hose DiagramWiring
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