AC Problem, Please Help!!
Thread Starter
Racer
Joined: Apr 2003
Posts: 328
Likes: 0
From: San Tan Valley Arizona
AC Problem, Please Help!!
My ac controls aren't working in my 98. It turns on, uses the difference speeds, changes temp, but when i switch it to feet or defrost it just stays on vent. I pulled it out thinking it may just be unplugged or something but everything is fine. Anyone come across this problem or have any ideas?
Drifting
Joined: May 2000
Posts: 1,917
Likes: 3
From: Southern NH
Originally Posted by mechanix19
My ac controls aren't working in my 98. It turns on, uses the difference speeds, changes temp, but when i switch it to feet or defrost it just stays on vent. I pulled it out thinking it may just be unplugged or something but everything is fine. Anyone come across this problem or have any ideas?
Le Mans Master
Joined: Dec 2002
Posts: 7,981
Likes: 36
From: Piedmont, SC Currently Own: 99 Nassau blue FRC. Previously Owned: 84,95,98 Indy Pace,01 Z06
Check and make sure your battery hasn't leaked and ate through the vacuum lines running in the wiring harness under your battery. I had this happen in my '98 and it was a nightmare. The vacuum line will run into a little valve right up under the passenger side. If you follow the vacuum line from under the battery down towards the bottom of the passenger side/front rocker, you will run into this valve. Mine was ate all up and had holes all in the vacuum line from where battery acid had leaked and ran down the hoses. You will have to remove the inner part of the passenger side fender well closest to the cabin to probably see this valve. Goodluck finding it. This may or may not be your problem, but it's a start.
-J
-J
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 243
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
If the intake manifold has ever been off, there's a possibility the small 1/8" nylon vacuum line on the backside is loose/disconnected.
