looking to buy a 2500hd sierra 4wd it shifts fine in the lower range but it doesnt feel like its shift at higher speeds

looking to buy a 2500hd sierra 4wd it shifts fine in the lower range but it doesnt feel like its shift at higher speeds 2 Answers

It starts fine, if I stay with it, negotiate the gas pedal for a few seconds it wil usually keep idling smoothly. Until I put it into gear? 3 Answers

(1995 GMC Sierra 2500 Pickup, 305 V8, Automatic Transmission, rear wheel drive, 85,000 miles) Once in gear it will normally require me lightly pumping the gas to keep from dying. Too much gas and it...

have an 03 gmc sierra 2500hd has 276000 miles on it did cylinder contribution test all cyl. came uo about the same no real diffrences but smokes at all times with no loss of power does have tuner 1 Answer

smokes at all times but runs good no injector codes contribution all pretty typical 678 to 681

95 gmc sierra ext cab 5.7 after several miles (10 or more) the rpms jump it acts like tranny is disengaging (jerks) and dies. Takes a bit to start. When cold or sat a bit starts fine 1 Answer

The truck will go long distance going 35 miles an hour. I have replaced exhaust from headers back, new o2 censor, fuel filter, fuel pump, cap, rotor, plugs, wires, water pump, fan clutch, temp ce...

My 94 gmc Sierra 2500 lost power recently and now has a weird whistle sound coming from the engine, but only when I'm in drive driving. It almost sounds like a turbo winding up. My truck don't have 1. 3 Answers

The engine is a v8 5.7L 350.