GMC Sierra Engine

99 Gmc Sierra 5.3 235000 Miles. When I Start It Up The Rpms Jump Up To 5000 To 6000 And Back Down To Under A 1000 And Will Usually Die. If...

Was Driving When Truck Died. Got It Restarted But Would Backfire And Stall Had No Power Whatsoever. Start It Up The Next Day It Seems Fine...

I Have An 89 Gmc Sierra 350 Motor Replaced Thermostat Had Loosened The Whole Tension Pulley And Part Cause I Thought The Brackets On The...

89 Gmc/350 I Replaced Ing Coil And Still Not Getting A Spark,i Even Poured Gas Into Carb And Truck Still Wont Fire Off And Also When I Turn...

Ran Fine Thursday And Wouldnt Start Friday. Is Getting Fuel And Fire, And The Compression Is Fine. What Could Be Wrong?

Ok Here Goes I Had The Trucks Computer Read For A Code Because It Keeps Stalling While In Drive The Codes That Showed Were One For The O2...

Hi. I''ve Put In New Spark Plugs, Wires & Ignition Coil And Still Have The Identical Problem. The Truck Starts & Runs Fine When Cool. When...

Engine Performance Problem 1989 Gmc Sierra V8 Two Wheel Drive Automatic My Truck Will Not Start After Running For A While And Is...

Electrical Problem 1989 Gmc Sierra 6 Cyl Two Wheel Drive Manual My Truck Ran Fine. Whent To Give My Buddy A Boost. Dead Battery. Tried...

Engine Mechanical Problem 1989 Gmc Sierra V8 Four Wheel Drive Automatic 57k Miles 89 Gmc 3500 4x4 Cranks But Wont Start However It...