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Location: CA
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how does our 911 heater works?
Don't laugh at me for asking this question. I have this car for many years but I never can get the heater to work with fan on.
When I pull on the red levers at the mid console, I do get good amount of heat, and usually that's all I need. Occasionally I want more because it's so cold, I try to turn on the fan (controls are at the front dash, above the shifter), then immediately, no more heat. Another reason to turn on the fan is when my front windshield is foggy, I turn on the fan to blow it up on the windshield to defrost it, then my heater won't release hot air any more. Another occation is when the car is iddling, or driving too slow around town while it's too cold outside (our car need higher RPM for the heater to blow hot air, even the red levers are all the way up), then I want to turn on the fan so it can blow hot air to my hands. Soon the fan is on, the air won't be cold anymore, even at the kick panel vents. Why? Is this the way our car built?
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Fat butt 911, 1987 Last edited by rnln; 02-19-2009 at 03:25 PM.. |
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02-19-2009, 03:23 PM
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N-Gruppe doesn't exist
Join Date: Jun 2005
Location: *%@#ing GPS, where am I? Oh wait I see the Space Needle.
Posts: 4,394
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not again?
 oh wait this is in OT go over to the tech board. all your issues have been discussed there.
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Ted '70 911T 3.0L "SKIPPY" R-Gruppe #477 '73 914 2.0L SOLD bye bye "lil SMOKEY"  "Silence is Golden, but duct tape is SILVER.” other flat fours:'77 VWBus 2.0L & 2002 ImprezaTS 2.5L Last edited by teenerted1; 02-19-2009 at 03:35 PM.. |
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02-19-2009, 03:32 PM
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AutoBahned
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and search on heater
include boxes if too many threads should be instructions & diagram in your owner's manual |
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02-19-2009, 05:30 PM
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Buy a watercooled Porsche for the winter.
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02-19-2009, 05:53 PM
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Please - no offense intended, but this guy has 3207 post...
I'm just sayin'...
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David 1972 911T/S MFI Survivor |
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02-19-2009, 05:57 PM
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Quote:
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02-19-2009, 06:02 PM
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Friend of Warren
Join Date: Oct 2000
Location: Lincoln, NE
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Kurt V No more Porsches, but a revolving number of motorcycles. |
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02-19-2009, 06:06 PM
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I did the search before I asked but couldn't find what I was looking for. I was not only looking for how to fix the blowers but rather how to use the heater properly. Anyway, after talking to a friend (on the phone), I know that this is the blowers' function and I think my blowers in the kick panel are gone.
Thanks all. KurtV, Thanks for those diagrams.
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Fat butt 911, 1987 |
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02-19-2009, 11:35 PM
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Back in the saddle again
Join Date: Oct 2001
Location: Central TX west of Houston
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You should have great heat in an '87. You should have the footwell blowers, but it could be that they are broken or siezed. My '88 had fuses inline right at the blowers. I think the '87 should also have the fuses. But before you just replace the fuses, you should see if and how easily you can spin the motors.
My '88 targa's HVAC worked great when the footwell blowers worked.
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Steve '08 Boxster RS60 Spyder #0099/1960 - never named a car before, but this is Charlotte. '88 targa SOLD 2004 - gone but not forgotten
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02-20-2009, 05:54 AM
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N-Gruppe doesn't exist
Join Date: Jun 2005
Location: *%@#ing GPS, where am I? Oh wait I see the Space Needle.
Posts: 4,394
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Quote:
 oh the horror
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Ted '70 911T 3.0L "SKIPPY" R-Gruppe #477 '73 914 2.0L SOLD bye bye "lil SMOKEY" "Silence is Golden, but duct tape is SILVER.” other flat fours:'77 VWBus 2.0L & 2002 ImprezaTS 2.5L |
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02-20-2009, 08:45 AM
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Back in the saddle again
Join Date: Oct 2001
Location: Central TX west of Houston
Posts: 56,347
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It's really important to get those footwell blowers working if you want good air-flow. They make a huge difference.
As far as defogging the inside of the windshield, if you get in the car and crank the heat to full, that will make them worse. When the car is cold and has been sitting, you're better off setting the defogger to full cold, then as you drive the car, over the next mile or so, gradually change the temp of the air to the windshield to hot. That should keep your windshield 100% fog free. Going full heat when the car is cold makes it worse.
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Steve '08 Boxster RS60 Spyder #0099/1960 - never named a car before, but this is Charlotte. '88 targa SOLD 2004 - gone but not forgotten
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02-20-2009, 08:54 AM
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Registered
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Location: CA
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Thanks guys. I will tackle this soon. For years, I always thought the German guys never sit idle at red light
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Fat butt 911, 1987 |
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02-20-2009, 02:17 PM
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