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Brake warning light issue

 
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Druman  



Joined: 19 Mar 2007
Posts: 419
Location: Middleport, Ohio

PostPosted: Sun Sep 20, 2009 4:14 pm    Post subject: Brake warning light issue Reply with quote

My warning light keeps coming on, and I don't know why. I just had my pads changed last year and they are still really thick. Anyone have any ideas?


7osh
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87' 924S non-sunroof (Red) 45K miles
85' 944 "early" NA (Red) 130K miles

PORSCHE pisses excellence...
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Paul  



Joined: 02 Nov 2002
Posts: 9491
Location: Southeast Wisconsin

PostPosted: Sun Sep 20, 2009 11:24 pm    Post subject: Reply with quote

Have you checked the switch and wiring at the hand brake?

Is your master cylinder reservoir full?

How's the wiring look at the master cylinder?

Do you have a lot of travel on the brake pedal?
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White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.
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Druman  



Joined: 19 Mar 2007
Posts: 419
Location: Middleport, Ohio

PostPosted: Mon Sep 21, 2009 12:54 am    Post subject: Reply with quote

Hey Paul, thanks for replying.

I think it might help if I knew exactly what the light was suppose to indicate.

The set up I have has 3 lights, one for brake fluid (left) one for seatbelt (bottom) and one for what I think is brake pads (right). The one for brake fluid isn't coming on, and I've checked my fluids so I know that's fine. The handbrake has a separate light right above my "low fuel" light.

So I'm guessing that it is some sort of sensor issue?


7osh
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87' 924S non-sunroof (Red) 45K miles
85' 944 "early" NA (Red) 130K miles

PORSCHE pisses excellence...
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Smoothie  



Joined: 01 Jan 2003
Posts: 8032
Location: DE (the one near MD, PA, NJ)

PostPosted: Mon Sep 21, 2009 1:12 am    Post subject: Reply with quote

In the 924NA and 931 (and assuming the 924S is the same), the center console brake light is also tied into the oil pressure warning. -So if oil pressure is low (or if there's an oil pressure sender problem (grounding)), both the oil and brake lights turn on. -But if your oil light is burnt out, obviously you'll only have the one brake light.. Check the oil pressure light with ignition switched on, but engine not started - all dash warning lights should light.
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'82 924T, US version, dark green metallic, 5 speed Audi 016G gearbox
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Paul  



Joined: 02 Nov 2002
Posts: 9491
Location: Southeast Wisconsin

PostPosted: Mon Sep 21, 2009 1:51 am    Post subject: Reply with quote

I wonder if he is asking about his 944 on a 924 board without telling us.....
_________________
White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.
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Druman  



Joined: 19 Mar 2007
Posts: 419
Location: Middleport, Ohio

PostPosted: Mon Sep 21, 2009 7:15 am    Post subject: Reply with quote

Oh, sorry. Yeah I'm talking about my 944 I didn't think it made much difference. I know I have a bad ground/connection somewhere, because sometimes my oil pressure light, brake fluid light, and brake pad light, all flash together and random times. I've never been able to trace that issue tho.


7osh
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87' 924S non-sunroof (Red) 45K miles
85' 944 "early" NA (Red) 130K miles

PORSCHE pisses excellence...
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