PontiacBonnevilleClub.com

Hello everyone.

I have a 1998 SSEi with an A/C system that I can't get blowing cold air in the summer, but is now blowing cold air, in the winter. It starts to blow hot air but it only lasts a few seconds. It seems like such an inexplicable problem to have. I am beyond frustrated. I tried to find a similar problem in the boards and nothing even sounds close. I recently had a check engine light that returned a code about a faulty thermostat, but it has gone away on its own. Since that warning, the car has run slightly hotter than it usually does.

Sorry about the noob question. I appreciate any help you can give me!

Sounds like an air blend door actuator issue to me. I think there's a write-up on it in the Techinfo.

Hrm... The pics are broken, but here it is.

http://www.pontiacbonnevilleclub.com/fo ... c3537.html

I would also suggest checking the coolant level. Take off the radiator cap, don't assume it's full by the level in the coolant expansion tank. A low coolant level could cause intermittent heat and higher temp.

http://www.pontiacbonnevilleclub.com/fo ... ?hilit=USE CLOTHES HANGER TO MOVE AIRMIX LEVER

don't know if you are still trying to get heat but for a temporary fix check out link above.

The car was low on coolant so I topped it off and now the heater runs great!

Thank you, guys, it's nice not freezing in my car anymore!

Thanks for reporting back.
Always good to find out what the issue was.