Loud grinding / whirling sound
I'm getting an occasional grinding whirling sound on start up, and sometimes while I'm driving. If I start the truck up and it makes the sound I can shut it off and restart and it's fine. I do know it has something to do with my heating/ climate control. I get the sound when I switch from windshield defrost to anything else. I'm just not sure what to check first on this one. Blend door motor? The sound is driver side.
1997 P38 Vitesse -gone