Heating Unit repair
Thread Starter
Instructor
Joined: Apr 2004
Posts: 200
Likes: 0
From: Manahawkin NJ
Heating Unit repair
Ive noticed that my heat/air vents on the console and dash don't work. When I turn the heat on it comes out by the kick panels down below just fine, but none of the other vents work. I don't know if there is just a lose cable or something somewhere, has this happened to anyone? Know how to fix it?
Last edited by OneBrokenSmile07; Sep 12, 2004 at 10:53 PM.
Race Director
Joined: Apr 1999
Posts: 11,520
Likes: 13
From: CORVETTE 77 385 C.I. TEXAS
The problem is that heater is the default position (no vac. or vac. leak) due to being designed in the north. Vent should be default. Very safe bet the problem is 1 OR 2:
1) The vac. line from engine is damaged from heat - a small plastic tube that goes in below the hood theft switch into wiper valley. Replacing most of engine side w/ hose will fix. OR
2) The vac. switch itself is not switching due to vac. leak as the usually plastic rivet is not holding the 2 main switch parts together well. Besides replacing, it is also possible to tighten this &/or lube w/ a thin layer of white lithium grease or vasoline to fix.
3) If you have a heater, the small hose to heater hose valve underhood probably also needs replacing. Block w/o heater.
PS The design problem comment is not intended to be offensive to any of our northern friends.
1) The vac. line from engine is damaged from heat - a small plastic tube that goes in below the hood theft switch into wiper valley. Replacing most of engine side w/ hose will fix. OR
2) The vac. switch itself is not switching due to vac. leak as the usually plastic rivet is not holding the 2 main switch parts together well. Besides replacing, it is also possible to tighten this &/or lube w/ a thin layer of white lithium grease or vasoline to fix.
3) If you have a heater, the small hose to heater hose valve underhood probably also needs replacing. Block w/o heater.
PS The design problem comment is not intended to be offensive to any of our northern friends.
Racer
Joined: Jan 2003
Posts: 383
Likes: 0
From: Columbia SC
After you do what Ganey suggests, then I would..
You might have a vac leak where the vac tubes connect into the climate control panel. Suggest you remove the panel and make sure all of the vac lines are connected like they should be.
This happened to me and the vent doors went to the default position and stayed there.
You might have a vac leak where the vac tubes connect into the climate control panel. Suggest you remove the panel and make sure all of the vac lines are connected like they should be.
This happened to me and the vent doors went to the default position and stayed there.
