If my truck is not completely warmed up when it is really cold out, I get a really high pitched whine that comes out at the time time I accelerate.

When it happens, if I let off the accelerator, it stops.

Is this some kind of grounding problem... or anyone else have any ideas?

My truck is a 2004 4.6 2wd supercab...

thanks

 

only squeal ive ever heard out of speakers while accelerating is if you have the AM radio on its sometimes affected by that

 

Yeppers...sounds like a bad ground to me. Clean your connection or relocate and you should be fine

 

Im taking it to the dealer... heh. Gotta love warranty, was just curious.

 

Have them look at the Alternator, just had mine replaced and the whine is gone!