Hvac
- Thread starter Ty Psymed
- Start date
randy merritt
Donating Member
Re: Hvac
My similar problem and solution:
http://www.syty.net/forums/showthread.php?t=89899&highlight=blows+defrost
My similar problem and solution:
http://www.syty.net/forums/showthread.php?t=89899&highlight=blows+defrost
Re: Hvac
Thanks - I guess that is behind the floor diffuser - will pull it off and cross my fingers!
Thanks - I guess that is behind the floor diffuser - will pull it off and cross my fingers!
Logan
Member
Re: Hvac
Before you do that check the switch behind the HVAC panel. It is the little round thing that the cluster of vac lines goes to. That thing likes to crap out and it is responsible for routing the air flow. I would start there. Listen for vac leaks by that switch with the truck running.
Before you do that check the switch behind the HVAC panel. It is the little round thing that the cluster of vac lines goes to. That thing likes to crap out and it is responsible for routing the air flow. I would start there. Listen for vac leaks by that switch with the truck running.
Re: Hvac
Just checked - the white plastic bushing is still there and looks good.
I pulled the controls out earlier and found everything looking intact. Wish I had a drawing showing where all these vacuum lines went. There is one empty line port but no loose lines behind controls.
Took rotary valve apart - it is clean and it was tight.
Just checked - the white plastic bushing is still there and looks good.
I pulled the controls out earlier and found everything looking intact. Wish I had a drawing showing where all these vacuum lines went. There is one empty line port but no loose lines behind controls.
Took rotary valve apart - it is clean and it was tight.
asmo
Sy #2918
Re: Hvac
I'd check vacuum lines again, replace the one from the engine to firewall with a new line, just cause they look good don't mean they are. It could have small pin hole, mine did the same thing,where it blows out vents. turns out it was the tee on the manifold had a small crack.
I'd check vacuum lines again, replace the one from the engine to firewall with a new line, just cause they look good don't mean they are. It could have small pin hole, mine did the same thing,where it blows out vents. turns out it was the tee on the manifold had a small crack.