What causes power loss in a 1990 gmc 3500 3speed when going up any kind of incline or small hills can be doing 60mph and bogs down to about 30mph

What causes power loss in a 1990 gmc 3500 3speed when going up any kind of incline or small hills can be doing 60mph and bogs down to about 30mph 4 Answers

I HAVE A 91 GMC C3500 WITH A 454 IT'S A 5.7 ENGINE AND ITS RUNNING LIKE CRAPE WHEN I TRY TO DRIVE IT IT WHANTS TO STALL OUT 2 Answers

I HAVE A 91 GMC C3500 WITH A 454 IT'S A 5.7 ENGINE AND ITS RUNNING LIKE CRAPE WHEN I TRY TO DRIVE IT IT WHANTS TO STALL OUT THE IDEL GO'S UP AND DOWN SOME TIMES WHEN I COME TO A STOP IT CUTS OFF...

Why does my blower, abs and 4x4 on a 99 gmc k 3500 classic cross I sometimes have blower sometimes not kicks out when I put it in four by and my abs and park it light flashes when I turn blower knob! 3 Answers

engine stalls / floods @ idle , also surges 1 Answer

I have a 1990 Bounder motorhome with 3500 series GM running gear 454 w/ automatic, engines stumbles and surges at low speed. It has throttle body fuel injection, it will flood out and die often at idl...

I have a 2000 GMC 3500 bucket truck and my Transmission Line broke from rust. It's on the passenger side and it's the high pressure line. The dealer says they don't make them anymore and I can't seem to find an OEM or aftermarket line that will work. I am going to go ahead and replace the standard one with the rubber, but need the one without it. Any ideas? Thank you 2 Answers