Problems with HVAC and cold air in the winter - Page 8 - 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.

Thread Tools Search this Thread
Old 02-10-2014, 11:37 PM   #71
Junior Member
Join Date: Jan 2014
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Davepomrenke is on a distinguished road

Dear FireBird Stud. My 94 Lesabre did exactly the same thing. I have flushed the heater core, changed thermostat, and replaced the heater control assembly. Just changed the heater control today, found one at junk yard for $20. When you stated you can push the rod, that tells me, and should also tell you the servo motor has stripped out gears. Now if you pushed it hard you may have stripped them out, but I doubt it. After I changed my control unit I went to the heater door and found the servo unit. Removed it from the heater housing and I am now attempting to determine if it is bad. There is no way you can push that rod and spin that little DC motor without breaking something. I have juice to the servo, three wires in, one is hot the other two probally run back to the controller or the programmer. I am headed back to junk yard to rob that Lesabre of the servo unit and the programmer which I can easilyh get at from the glove box removed. Don't know bout your car. Odds are it is that servo cause you can move the arm. I dismantled mine and there are 5 gears in it and 4 of them are reduction gears, no way will you spin that motor by pushing that rod. Good luck are you in the twin cities, if you are, call me and I can tell you where you might find some cheap parts.

Phone number deleted,
I would suggest not posting your phone number in the open area of the forum, you can PM him or list the places you are talking about

Davepomrenke is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Climate control problems- Driver side not cold, passenger cold southernengineerin 2000-2005 4 04-04-2010 08:19 PM
1996 Bonneville SSEI Heater Blows cold Air and Hot air!! gmanjeep 1992-1999 9 04-15-2009 12:57 AM
A/C Problems - Cold then HOT then Cold then Hot!!!!! nick s 1992-1999 13 04-22-2006 11:40 AM
No HOT AIR tons of Cold Air HELP Littlehovey 1992-1999 8 01-15-2004 05:40 PM
Cold start,smokey exhaust, and cold air only jeff 1992-1999 0 11-20-2003 02:56 PM

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 09:06 AM.

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 and affiliated sites.