AC Problem
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Joined: Oct 2003
Posts: 78
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From: port charlotte fl
AC Problem
I tried the search and could not get the answer, i have seen this problem before but can not remember how to fix it. I have A 98 with dual zone and the driver side is stuck on hot air coming out (sometimes it is a little cool but not enough for florida). the passenger side is always ice cold, i tried disconnecting the battery (for days) and it did not help! what should i try next, thanks. p.s. it has plenty of refridgerant
Race Director
Joined: Apr 2001
Posts: 19,329
Likes: 15
From: Saint Augustine, FL
Mid-TN Events Coordinator
St. Jude Donor '03-'04-'05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16
Try these 2 things :
1. If you pulled the battery cables only once, try it one more time. 5 Minutes is sufficient. It will force the doors to go through a re-calibration of some sort. Almost every time I disconnect the battery for any reason, my doors get screwed up. It might take one or 2 more times of connecting and disconnecting to get the doors to work right. The fuse trick never worked for me. I dunno why.
2. Check the battery to make sure it isn't leaking (assuming you don't have a AGM or a Optima) There is a vacuum line directly under the battery (along with the PCM and wiring harness!). If acid hit that vacuum line, it probably burned through it.
Finally, see if there are any codes.
1. If you pulled the battery cables only once, try it one more time. 5 Minutes is sufficient. It will force the doors to go through a re-calibration of some sort. Almost every time I disconnect the battery for any reason, my doors get screwed up. It might take one or 2 more times of connecting and disconnecting to get the doors to work right. The fuse trick never worked for me. I dunno why.
2. Check the battery to make sure it isn't leaking (assuming you don't have a AGM or a Optima) There is a vacuum line directly under the battery (along with the PCM and wiring harness!). If acid hit that vacuum line, it probably burned through it.
Finally, see if there are any codes.
Burning Brakes
Joined: Jun 2004
Posts: 1,083
Likes: 0
From: I'm not quite middle aged and I only own one gold chain! San Jose CA
I had this happen to me on a very hot CA day...it was irritating to say the least! I couldn't get the drivers side to blow cold, but the passenger side was putting out ice cubes. I tried shutting the car off and restarting hoping that it would reset somehow but to no avail.
I went home and thought I'd be taking it to the dealership the next day, but when I started the car up the next morning the AC worked just fine and it hasn't done it since.
I have had the AC stop blowing cold air a few times under acceleration and then it goes back to blowing cold about 30-45 seconds later. This is not normal and as soon as possible I am going to take the car in for service...shudder, shudder, shudder. (Dealerships make me nervous, but I have found one that has done okay for me the two times I've taken it in.)
Here's knocking on wood and hoping it keeps working okay for a while!
I hope you get your issues resolved favorably!
I went home and thought I'd be taking it to the dealership the next day, but when I started the car up the next morning the AC worked just fine and it hasn't done it since.
I have had the AC stop blowing cold air a few times under acceleration and then it goes back to blowing cold about 30-45 seconds later. This is not normal and as soon as possible I am going to take the car in for service...shudder, shudder, shudder. (Dealerships make me nervous, but I have found one that has done okay for me the two times I've taken it in.)
Here's knocking on wood and hoping it keeps working okay for a while!
I hope you get your issues resolved favorably!
Burning Brakes
Joined: Jul 2003
Posts: 750
Likes: 1
From: Branson MO
Originally Posted by Daves C5
I tried the search and could not get the answer, i have seen this problem before but can not remember how to fix it. I have A 98 with dual zone and the driver side is stuck on hot air coming out (sometimes it is a little cool but not enough for florida). the passenger side is always ice cold, i tried disconnecting the battery (for days) and it did not help! what should i try next, thanks. p.s. it has plenty of refridgerant
Race Director
Joined: Apr 2001
Posts: 19,329
Likes: 15
From: Saint Augustine, FL
Mid-TN Events Coordinator
St. Jude Donor '03-'04-'05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16
Originally Posted by mikestuff
What does your outside temp read? If the ambient temp sensor is bad it can fool the system. If the outside temp is accurate, somebody else will need to chime in.
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Joined: Mar 2001
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From: The Rock Arkansas
Elite Member
Cruise-In III Veteran
I've been fighting this problem for awhile now. Good luck with the stealership, I hope yours is better than the one that "worked" on mine. You may not have noticed yet, but when you turn on the heat, the driver side will blow cold and the passenger side will blow hot also. They charged me over $400 bucks to install a new actuator. Well, in less than a month it was doing the same thing again. I took it back and this time they wanted to install a new climate control unit for a cool $1200 just for the part. 
Well, I told them to shove it and have been dealing with the problem.
Well, I told them to shove it and have been dealing with the problem.