• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

Vent Controls

B

blsnelling

New member
I just purchased a 2001 Grand Prix GT. The vent control knob seems to have no effect on where the air blows out. It seems to be coming out all ports. I can feel the A/C on both the floor and the dash vents. Should I suspect the knob controller or the actuator it operates?

Also, moving the temp control to heat seems to stop all air flow, although it does switch to heat.

I've yet to change the cabin air filter but will be ASAP.
 


back side, ( firewall side) of the intake manifold is a vac line that leads to the firewall, it then runs across the firewall then down the pass fender top down to the battery area, some have a T some dont, but at that point it will run into the wire harness leading into the cab.

check that line for a break. it often gets busted by the battery when its changed. it powers the air flow direction.

if that line all checks out. theres a box under the dash that line runs to, that box can fail.

or worst case is the plastic linkage on the hvac unit in the dash broke. thats no fun to fix at all.
 
You must log in or register to reply here.
Back
Top