Need help with AC with Electronic Climate Control - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 06-06-2005, 08:55 PM   #1
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Aug 2004
Location: Metro Detroit
Posts: 30
Thanks: 0
Thanked 0 Times in 0 Posts
98SSE is on a distinguished road
Default Need help with AC with Electronic Climate Control

Well I know that my HVAC programer and the air mix door actuator are bad but I don't have the cash on hand right now to fix it, but I was wondering if any one could tell me how and if it'* possible to set the air mix door manually so I can at least have some AC over the summer while I save up cash to have the system properly repaired.

I have tried looking under the passenger side of the dash but I do not see a way to get to the air mix door, can anyone out there give me a clue.

Thanks
98SSE is offline   Reply With Quote
Old 06-06-2005, 09:09 PM   #2
Senior Member
True Car Nut
 
Join Date: Feb 2004
Location: Western MA
Posts: 2,708
Thanks: 0
Thanked 1 Time in 1 Post
randman1 is on a distinguished road
Default

Name:  DSC01660.jpg
Views: 38
Size:  39.7 KB

Name:  DSC01665.jpg
Views: 32
Size:  21.0 KB

NOTE: If you know that your air mix actuator is shot then it will be OK to manually move it. However, the actuator arm should not normally be moved manually because the nylon gears can be damaged.

The air temp door can be seen and moved through the glove box. You'll need a long screwdriver or similar instrument. The end of the actuator rod and connection can be seen with a flashlight through the left hole in the black steel dash structure. Adjust the temp door arm all the way to the left for full cold after adjusting the temp control to 60*.

I haven't heard of many HVAC programmer failures. Was it determined to be faulty via a scantool??
randman1 is offline   Reply With Quote
Old 06-06-2005, 09:18 PM   #3
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Aug 2004
Location: Metro Detroit
Posts: 30
Thanks: 0
Thanked 0 Times in 0 Posts
98SSE is on a distinguished road
Default

Cool thanks for the help I'm going to outside now I see if I can see what you're talking about.

The temp has been flashing and I had no heat or AC couldn't change the temp at all so I took it to the dealer and the diagnosed the problem as being that the air mix actuator shorted out and then shorted out the HVAC programer. Kinda sucks that a $60 part shorted out a $600 part. I would replace it myself but pulling the dash out is a bigger hassle than I want to deal with plus if it shorts out again or something else happens to it it'll be on the dealer then.
98SSE is offline   Reply With Quote
Old 06-06-2005, 09:23 PM   #4
Senior Member
True Car Nut
 
Join Date: Feb 2004
Location: Western MA
Posts: 2,708
Thanks: 0
Thanked 1 Time in 1 Post
randman1 is on a distinguished road
Default

There'* been a couple of members that have changed the actuator without dash removal. Removing the programmer is part of that job. Since the actuator lives on the top of the heater core cover, the idea is to dig into it through that method.

When I installed the 97 programmer into my 93, I did it from under the dash. If you know your way around up there, it can be done . I've got plenty of pics if you decide to grab one from a junk yard.
randman1 is offline   Reply With Quote
Old 06-06-2005, 11:18 PM   #5
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Aug 2004
Location: Metro Detroit
Posts: 30
Thanks: 0
Thanked 0 Times in 0 Posts
98SSE is on a distinguished road
Default

Well I got the air mix door set to cool, though when I tried to move the lever I ended up popping the actuator rod off the lever so I had to tie the lever down by carefully fishing a piece of wire underneathe that metal braket and looping it around the lever, I nearly crapped my pants when I realzied that the flow of air would make it default to heat without somehting to hold that lever in place.

So I got it working for now, thanks randman1

If you could tell me how to get to the actautor and the programmer without pulling the dash that would be awesome. How much does a programer cost from the junkyard?
98SSE is offline   Reply With Quote
Old 06-06-2005, 11:48 PM   #6
Senior Member
True Car Nut
 
Join Date: Feb 2004
Location: Western MA
Posts: 2,708
Thanks: 0
Thanked 1 Time in 1 Post
randman1 is on a distinguished road
Default

Quote:
Originally Posted by 98SSE
If you could tell me how to get to the actautor and the programmer without pulling the dash that would be awesome. How much does a programer cost from the junkyard?
I don't think too many people would know what the heck it is when you plop it down in the parts counter. Offer $20 for the "neat black box to tinker with".

Here'* a behind the scene look at the dash:

Name:  DSC01064_edit.jpg
Views: 148
Size:  58.5 KB



Name:  DSC01068.jpg
Views: 104
Size:  53.9 KB

This will kinda allow you to get the feel for what'* going on back there. Although the actuator and rod were camera shy, you can get a good sense of where they belong. One quick note, the two 7mm screws on the heater core cover were smaller in my 97 so I assume they are smaller on your car too.

The idea is to remove some components to the right of the heater core cover to remove it. This includes the HVAC programmer. You will easily see the large electrical connector that plugs into the programmer but what you won't see is a smaller connector that goes from the programmer to the actuator. It plugs in from the top so you will have to feel for it to disconnect. Once you have enough room to remove the heater core cover, you can reach up and disconnect the rod and the whole assembly will come out. Remove the old actuator from the cover and reinstall the new one. Reverse precedures for reinstallation for other components.

Attaching and calibrating the rod can be difficult but you usually set the ECC temp setting to full hot, move the air mix door lever all the way to the right (like the first pic) and connect the rod in the middle of the threads. You might have to readjust but this usually work the first time. Don't forget to reconnect the small programmer to actuator connector.

If you have forearms like Popeye, expect some minor cuts, scratches and pokes. It is tight but think of all the time and agony you'll be saving.
randman1 is offline   Reply With Quote
Old 06-07-2005, 12:19 AM   #7
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Aug 2004
Location: Metro Detroit
Posts: 30
Thanks: 0
Thanked 0 Times in 0 Posts
98SSE is on a distinguished road
Default

Ok that doesn't look too bad, if you pull the passenger air bag can you get to acutator and and rod on the top? Not that I want to pull an airbag but if it will make it considerably easier...
Do you have any pics with the programmer?

So you are able to get to all that from just under the dash then? And the acutator will be mounted on the heater core cover? it just comes out as one piece? It looks tight but if you say it'* doable I might give it a shot, just need to see if I can find a junkyard with a recent bonneville, I need to get some other interior parts too anyways.


Thanks again
98SSE is offline   Reply With Quote
Old 06-07-2005, 12:27 AM   #8
Senior Member
True Car Nut
 
Join Date: Feb 2004
Location: Western MA
Posts: 2,708
Thanks: 0
Thanked 1 Time in 1 Post
randman1 is on a distinguished road
Default

Airbag bolts in form behind so if you can get to them the dash is already off.

The nice thing about getting stuff from a junk yard is you can get a very good feel for how to remove things and get at everything. if you break something, go on to the next car.

You should include your location in your profile so it appears under your username in posts. Other members that might be local to you can suggest yards ect.
randman1 is offline   Reply With Quote
Old 06-07-2005, 12:44 AM   #9
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Aug 2004
Location: Metro Detroit
Posts: 30
Thanks: 0
Thanked 0 Times in 0 Posts
98SSE is on a distinguished road
Default

It'* dark now but tommorow I'll size it up and figure out if I want try it myself, and I can see how pulling the part off a junk car would help me to figure out how to put it on my car, would be much cheaper than having the dealer do it, they wanted to charge me $1100 or so to fix it.

But at least I have AC for now though, wish I would have know how to get at it during the winter I could have had heat then...oh well
98SSE is offline   Reply With Quote
Old 06-07-2005, 08:59 AM   #10
Senior Member
True Car Nut
 
Join Date: Feb 2004
Location: Western MA
Posts: 2,708
Thanks: 0
Thanked 1 Time in 1 Post
randman1 is on a distinguished road
Default

Vital49 has recommended a couple junk yards in your area before. Send him a PM if you have difficulty locating the parts.
randman1 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Electronic Climate Control HELP jams 1992-1999 12 12-02-2005 01:36 AM
electronic climate control help L27Buick 1992-1999 3 12-11-2004 07:23 PM
Electronic Climate Control Not Working egladman 1987-1991 1 07-17-2003 02:29 PM
Can I put an electronic climate control in a car with manual parallelcircuits 1992-1999 4 05-02-2003 06:24 PM
electronic climate control trouble codes Fordolet General GM Chat 8 11-21-2002 01:19 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 06:40 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.