Hello
I have a VT V6 s-pak 5 speed manual commodore sedan. My problem is when i use my aircon. Its manual dials not climate control, when it is set to the face setting it blows out the front vents ok but as soon as i turn it to the coldest setting (recirculating) it blows out through the demist vents. this is becoming annoying as i like to have my car aircon as cold as possible when in summer. I have checked the one-way valve in my engine bay near the firewall and thats ok. It makes no difference whether im driving the car or in idle it still happens. I have had my dash apart numerous times but cant seem to find any hoses that are pinched or come off. Hoping that someone here could help me out. A vacuum hose diagram for the aircon under the dash would be a really big help
Thank you
i have the same problem mate! i just have to flix the switch to the winshield and then back to recirculating and give it about 15 seconds and it comes back through the vents and legs! gotta go to auto electrician?
Could be a vacuum leak. check the hoses coming out the back of the plenum. for crack or kinks.