I have a 1992 GMC 1 ton truck it keeps dogging out and won't go above 45 mgh?

I have a 1992 GMC 1 ton truck it keeps dogging out and won't go above 45 mgh? 1 Answer

My 97 2500 gmc with a 350 in it the feul pump went bad I changed it and the truck fires but won't start help please 4 Answers

I tried to bleed the system but that did not help I am getting spark but I don't think the fuel is getting enough pressure

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.

After 5mins or so I can't get above 3000 rpms, please help. 1 Answer

It starts up fine, runs like a brand new truck for a few minutes, then starts struggling. When it's struggling it won't go over 3000 RPM, when i try to force it over 3000 it'll start getting misfir...

My 2001 Sierra pickup truck won't start 3 Answers

truck won't start. Can sitting for months not running it cause this problem