Tricky Heater... 96 SSEi - 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 02-27-2008, 08:13 PM   #1
Junior Member
Posts like a Ricer Type-R
Thread Starter
Join Date: Feb 2007
Location: Sacramento, CA USA
Posts: 20
Thanks: 0
Thanked 0 Times in 0 Posts
TBOK75 is on a distinguished road
Default Tricky Heater... 96 SSEi

I had to be jump started recently due to a defective battery less than a year old. And now ever since, the heater works when it wants to. The fan blows fine, but half the time it'* cold air. I can crank it up to 90 and 'sometimes' it'll get kinda warm. I've noticed tho, if it'* above 50 degrees out...then it blows warm (again sometimes). Anything below and guranteed it'* cold air. I've searched and found nothing else here with the same problem. Maybe someone can shed a lil light...and maybe some heat?
TBOK75 is offline   Reply With Quote
Old 02-27-2008, 08:30 PM   #2
Senior Member
True Car Nut
Join Date: Mar 2004
Location: Ames, Iowa
Posts: 3,066
Thanks: 0
Thanked 1 Time in 1 Post
bill buttermore is on a distinguished road

Welcome to Bonneville Club. Please turn off bold font - kinda like CAPS - perceived as yelling. Some possible causes for no heat include low coolant, thermostat stuck open, plugged heater core, air-mix door (flap in air duct) not allowing air flow through heater core.

1. Check coolant level in radiator when cold - should be to the top.
2. Check coolant level in overflow tank.
3. Is engine temperature normal?
4. Are both heater hoses hot?
5. Check function of air-mix actuator.

Here is an article on how to fix lots of heater stuff including air mix actuator and photos:

Here is how to get warm in a hurry using a redneck fix for the actuator:
bill buttermore is offline   Reply With Quote
Old 02-28-2008, 10:31 AM   #3
Senior Member
True Car Nut
Join Date: May 2005
Location: _Phoenix, AZ_ _WCBF '05, '06, '07 Survivor_ ____NEBF '07 Remnant___
Posts: 3,448
Thanks: 0
Thanked 0 Times in 0 Posts
Echo SSEI is on a distinguished road

It seems We have had several members that have had airmix actuator problems after reconnecting a battery, and since you indicated that this happened after the jump start, my first thought is that the actuator has failed, like Bill has mentioned above.
Echo SSEI is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
2000 Bonneville - Tricky Parasite Drain AirBourn Everything Electrical & Electronic 1 08-30-2011 10:02 AM
Its Tricky...& Fixed ;) BLACK94SSEi Lounge 2 02-10-2007 07:06 PM
Tricky T-Stat Bolt (3 pics inside) IKZ 1992-1999 10 05-31-2006 12:26 AM
tricky question for the experts (I'm stumped) rdusel 1992-1999 9 05-19-2005 11:14 PM
Tricky Stabilizer Link Problem 92 ssei TelePlayer 1992-1999 2 07-30-2003 12:48 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 03:17 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 and affiliated sites.