89 a/c problem
Thread Starter
Intermediate
Joined: Aug 2013
Posts: 31
Likes: 0
From: Hillsboro MO
89 a/c problem
89 c4 my heater and a/c blows from all the vents at the same time even in defrost mode. I have checked the vacuum ball and it holds it completely. I have about 17 pounds of vacuum off the intake and the cruise control that is teed off of it works great. I do not hear any of the vent doors opening or closing. Any help would be appreciated.
Last edited by schroeter89c4; Mar 22, 2015 at 08:33 PM.
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
Do you have the C60 manual HVAC or the C68 digital HVAC?
You need to check the black vacuum line on the back of the HVAC control panel (C60) or on the HVAC programmer (C68). That's the one that brings the vacuum into the cockpit. You need to disconnect the vacuum block and test the black vacuum line. It looks something like this:
You need to check the black vacuum line on the back of the HVAC control panel (C60) or on the HVAC programmer (C68). That's the one that brings the vacuum into the cockpit. You need to disconnect the vacuum block and test the black vacuum line. It looks something like this:
Thread Starter
Intermediate
Joined: Aug 2013
Posts: 31
Likes: 0
From: Hillsboro MO
89c4 a/c problrm
Do you have the C60 manual HVAC or the C68 digital HVAC?
You need to check the black vacuum line on the back of the HVAC control panel (C60) or on the HVAC programmer (C68). That's the one that brings the vacuum into the cockpit. You need to disconnect the vacuum block and test the black vacuum line. It looks something like this:
You need to check the black vacuum line on the back of the HVAC control panel (C60) or on the HVAC programmer (C68). That's the one that brings the vacuum into the cockpit. You need to disconnect the vacuum block and test the black vacuum line. It looks something like this:
fix. Wile I have your thoughts on things I just ordered a lowering kit with new front bushings. I have seen other post where the cut the bushing complexly off. what's your thoughts on this. Thanks again. Kurt
