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Join Date: Dec 2002
Location: Monmouth County, NJ
Posts: 66
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heat coming on by itself
With my climate control knob turned all the way the the left (cold) and with my AC off, if I turn the fan on, my car will blow normal temp air that you would expect on this setting, then the heat clicks on by itself (i can hear something) and the heat blasts for about 10 seconds, then goes off for 10 seconds, then on ,then off, etc
what gives? thanks
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1994 BMW 525i dark blue 1967 Saab "96", Red, Needs Help |
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01-05-2009, 02:04 PM
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Join Date: Dec 2006
Posts: 213
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I think there is a nylon or plastic P clip that traditionally busts on the heater control cables that causes this problem. In fact, I think my car has the same snaglet... I should probably get it fixed by next summer.
Ha: I've just checked Clarks; there is extensive info in the garage manual under heater malfunctions  Cheers Russell
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944 Alpine White '89 2.7L Last edited by rmcdonnell; 01-05-2009 at 05:09 PM.. |
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01-05-2009, 05:00 PM
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Just fixed the same thing.
Its the clip thing. For a few bucks and about 5 minutes labor you'll feel like a genius.
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01-05-2009, 07:43 PM
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Location: Monmouth County, NJ
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clark's ? can i get/see that online? anybody have this procedure written, or can direct me to a link? thanks
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1994 BMW 525i dark blue 1967 Saab "96", Red, Needs Help |
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01-06-2009, 07:05 AM
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Automotive Necromancer
Join Date: Nov 2006
Location: Beantown, MA
Posts: 1,544
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Clarks rocks
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There may be nothing quite as expensive as a cheap Porsche: Ruby Red 84 928S : White 87 924s 2.5L NA (Blinky) M44/07-43H10676 spoiler delete - 046/2B - Belts 9/12, Clutch and OC seals 8/08 andd Red 94 Del Sol: Please put your Make, Model and Year in Sig. Try not to break more than you fix. |
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01-06-2009, 08:17 AM
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Location: Monmouth County, NJ
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thanks !!! printed it out. Will let you know how it goes.
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1994 BMW 525i dark blue 1967 Saab "96", Red, Needs Help |
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01-07-2009, 07:05 AM
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Location: Monmouth County, NJ
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So far so good. My 1988 has the plastic cover which some sick engineer attached with three screws that are a freaking PITA to get out. The last one just broke the plastic cover a little, instead of coming out. Anyway I now can see the two metal rods, and YES one of the white plastic clips is in fact broken, the upper/more rearward one. I will get a new clip this week, but now for my next question. I see from the other rod with the good clip that that rod has threads on maybe one inch of its length, and the white clip is centered right on those threads, half inch of threads on either side of the clip. I assume the broken one should be centered the same way once I get the new clip, but the rod is not in the correct position to do that. How do I move the rod so it allows the clip to center properly? I don't want to force it and break it. Thanks !! At least the cause of the heating problem was found, that is a big relief.
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1994 BMW 525i dark blue 1967 Saab "96", Red, Needs Help |
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01-19-2009, 04:22 PM
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Location: Roseville, CA
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Just push on the rod, it will shut the heater damper. What I did was turn the temp control all the way to full heat (so I know the damper is going to be fully open) and you should see the clip rotate, then you can attach the rod since the damper fails open also. turn the temp control to ful cool, then full heat to check but that should fix it!
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1992 968 Polar Silver 2010 Toyota Highlander SE 2006 Lexus LS430 ML |
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01-19-2009, 06:26 PM
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Location: Monmouth County, NJ
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Thanks, will try this weekend.
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1994 BMW 525i dark blue 1967 Saab "96", Red, Needs Help |
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01-23-2009, 01:20 PM
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Quality
Join Date: Oct 2007
Location: Philadelphia area and Morristown NJ
Posts: 951
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Let me know how this goes, I had a rod I had trouble moving and maybe moving the temp dial will help...
Hey, you're local! Maybe I'll come visit and you can show me what I'm doing wrong, hehe. =) I did fix ONE of the broken clips though. =)
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85.5 944 NA 5spd - Sold but not forgotten 89 951 Turbo S - Revival in progress... 
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01-24-2009, 01:13 PM
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Tom 1990 944S2 Cabriolet 2002 Chevy Silverado 2500HD 2003 Maroon Ford F350 dually |
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01-24-2009, 11:09 PM
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Location: Monmouth County, NJ
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well I'm finally going to try this today.
Finally bought the clip Friday
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1994 BMW 525i dark blue 1967 Saab "96", Red, Needs Help |
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02-16-2009, 09:38 AM
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