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Registered User
Join Date: Jun 2014
Posts: 8
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1993 911 C2 Coupe
Having a problem where i am getting very hot air blowing through the front vents while driving.
AC does not work nor does defrost, defrost goes on for 1 second then dies down to nothing, tried putting free on in the AC system with no help. Anybody have any ideas, other then that engine running fine Also spoiler staying up for some reason. |
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06-25-2014, 01:39 PM
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vince_wa
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Not quite the right forum but if it's anything like my late 80s model (which it it) it would have to be both a problem with heater blower and heater flapper boxes.
Try the 964/993 forum Porsche 964 & 993 Technical Forum - Pelican Parts Technical BBS
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Garage - 1987 911 widebody |
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06-25-2014, 04:12 PM
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Registered
Join Date: May 2012
Posts: 265
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Faulty heater control valve would end up blowing full on heat. Touch it with your hands. If it's hot when car is cold,，it failed
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06-25-2014, 08:55 PM
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Registered
Join Date: Aug 2004
Location: Rockville, Md
Posts: 14
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The heater valves on your car are controlled by differential pressure. There are fans located in the front of the car that pressurize the chambers leading from the heater valves. When the fans stop functioning, the valves open and admit heated air. I suspect this is what is happening with your car.
You need to troubleshoot the a/c heater system and figure out what is not working and why. Last edited by martyk; 06-26-2014 at 04:48 PM.. |
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06-26-2014, 04:45 PM
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Registered
Join Date: Jun 2004
Location: Oxford, Ct.
Posts: 2,297
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Quote:
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07 GT3 Cup S 4.0, 00 986, 78 911 old school gt car 77 BMW R100S 99 Ducati 996S 04 BMW R1150R DanielJacobsLLC.com |
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06-26-2014, 05:22 PM
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Registered User
Join Date: Jun 2014
Posts: 8
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where do i find that heater control valve ?
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06-27-2014, 06:34 AM
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911 Targa Supersport
