What causes a thumping noise by the blower fan when I first turn the ignition on and later when I shut motor off? This noise lasts about 10 to 20 seconds.

What causes a thumping noise by the blower fan when I first turn the ignition on and later when I shut motor off? This noise lasts about 10 to 20 seconds. 1 Answer

What causes the truck to feel like its locking up when I make a turn ? 3 Answers

When we drive on the interstate then get off and make a turn the truck starts acting like it has a flat tire almost like something is locking up but when you go straight it's fine. We had the rear en...

I have a 2015 GMC Sierra with only 4000 miles on it and it makes a rattling noise when it starts then when it hits 210 on temperature it stops the noise what could be the issue 15 Answers

It only does it in the mornings and it sounds like something is either loose or just vibrating against other metal. I have no problems with the truck or from what i can tell it just makes that annoy...

What is causing my GMC to advance the timing about 25° when I plug the wire under the dash together? 1 Answer

I disconnected the tan/black wire before setting the timing. I set the timing to 0°. Shut it down, connect the wire back, and when I check the timing, it advances about 20°. If I disconnect the wire...

98 gmc 350 vortes new fuel pump.truck will start .when you shut it off should it have fuel pressure on the fuel rail mien dont it bleeds off as soon as you turn the key off what could this be 1 Answer

is there fuel pressure at the rail when you shut the truck off.my truck does not why would it bleed off so fast?? 350 vortec.