hot air with heater off


Old 05-09-02, 11:35 AM
Jim Borkowski
Visiting Guest
Posts: n/a
hot air with heater off

I have a 1988 Porsche 944 non-turbo. Recently hot air blows thru the vents on heavy acceleration even when the temperature setting is off. Under normal driving cool air returns. It is especially apparent when in a higher gear trying to accelerate onto an expressway. Otherwise the engine cooling system and engine performance appear normal
Sponsored Links
Old 05-09-02, 12:39 PM
Visiting Guest
Posts: n/a
Check for problems with the blend door/HVAC system.

Get a vacuum schematic from Porsche (it's not likely to have it in my signature file below) and test the system.

I recommend you get a schematic from It's a 25 dollar yearly fee. Well worth it.

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

Thread Tools
Search this Thread
Display Modes