air conditioning blend door issue
Thread Starter
Intermediate
Joined: Oct 2009
Posts: 39
Likes: 0
From: kyle texas
air conditioning blend door issue
I have a 2001 z and the a/c only blows cold on the passenger side, I am sure it is a blend door issue, I started to pull the dash out the other day and realized there an very few visible fasteners so now I have two issues.
1. Can anyone give me some direction as to where hidden bolts might be and what to remove to get to them, I really do not want to break any dash panels I am sure they cost a pretty penny.
2. I noticed that the vacumm lines are color coded, does anyone know whick lines I should be paying paticular attention to, or know of somewhere I can get a diagram to tell me what controls what function.
Thanks in advance for any assistance.
1. Can anyone give me some direction as to where hidden bolts might be and what to remove to get to them, I really do not want to break any dash panels I am sure they cost a pretty penny.
2. I noticed that the vacumm lines are color coded, does anyone know whick lines I should be paying paticular attention to, or know of somewhere I can get a diagram to tell me what controls what function.
Thanks in advance for any assistance.
Team Owner
Joined: Dec 1999
Posts: 174,312
Likes: 1,217
From: Here
Pilot of Beer Force 1
Tampa Regional Coordinator
CI 4-5-6-7-8 Veteran
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I believe in the Beer Fairy
sounds like the actuator is FUBAR...I fixed mine by swapping out the control unit with an 04 version which has a circuit to override that issue.
Team Owner
Joined: Dec 1999
Posts: 174,312
Likes: 1,217
From: Here
Pilot of Beer Force 1
Tampa Regional Coordinator
CI 4-5-6-7-8 Veteran
Organizer St. Jude Fundraiser
I believe in the Beer Fairy
check this link..there is a post there that describes the fix
http://forums.corvetteforum.com/1567727663-post46.html
http://forums.corvetteforum.com/1567727663-post46.html
Thread Starter
Intermediate
Joined: Oct 2009
Posts: 39
Likes: 0
From: kyle texas
the hvac controller has no codes in it, read elsewhere on the forum to disconnect battery and allow ecm's to reset, did not change anything, cannot hear any actuators moving etc, will pull dash apart and check things out
Burning Brakes
Joined: Jun 2010
Posts: 1,014
Likes: 5
From: Rockwall TX
You need to see if you have any codes on the DIC, not sure what the HVAC has to do with codes? Usually if its an acuator problem, which most people have had, there will be a code on the DIC. Do you know how to do this? I know I did not when I first got my Vette.
My guess would be it is either a drivers side actuator (check codes) or low on freon. BOth can easily be checked before you tear into the dash.
My guess would be it is either a drivers side actuator (check codes) or low on freon. BOth can easily be checked before you tear into the dash.
Le Mans Master
Joined: Feb 2002
Posts: 6,937
Likes: 21
From: Waldorf MD
I agree, either actuators or low freon. The C5 A/C coil is setup so if it is low on freon, only the passenger's side will be cold.
Buy a can of freon with a gauge on it, you can then check the amount of charge (psi) in your system.
Buy a can of freon with a gauge on it, you can then check the amount of charge (psi) in your system.
Last edited by Oldvetter; Sep 11, 2010 at 03:35 PM.
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Racer
Joined: Aug 2000
Posts: 296
Likes: 3
From: Enterprise AL
Cruise-In II Veteran
Yes, definately check the freon level. My '01 coupe and a friends '98 both had this same issue- cold on passenger side, warm on dirvers. BOTH cars were low on freon and after adding some (mine took almost 1 can) the problem was fixed!!
Drifting
Joined: Feb 2003
Posts: 1,761
Likes: 235
From: North Carolina
This showed up in my 98 last month. Had the freon level topped off and all is well.
Pro
Joined: Apr 2008
Posts: 628
Likes: 4
From: Columbia SC
Yes, for God's sake check everything out thoroughly before tearing into the dash; it's a nightmare. Check out the thread "Reindexing HVAC actuators" if you have not already done so. And you certainly should have some DIC codes regarding your problem.
