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White Pony · Posted: Thu May 18, 2006 10:38 am Post subject: Temp sensor possibly gone...

The temp sensor has possibly gone on my 924. If I take the wires off of it and create a bridge between the two, the fans start up... But they do not start up on their own unless I turn on the A/C. So the relay is good...

Anyone know how big of a job it is to fix? I want to DIY if possible. I have a little project car (85 Caddilac Eldorado) that needs some road time, I can put liscense on that for awhile if it is a big job.
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1987 Porsche 924S
White/black (The White Pony)

For sale, $1000
http://www.924board.org/viewtopic.php?p=173801#173801

Stu2j · Posted: Thu May 18, 2006 10:58 am Post subject:

Sorry that I can't help with your problem but I just thought this was tooooo funny ...

Mods:
Rock chips, water damage, cracks, dents...

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-Stu
924 owner since 1988
924S owner since 2002
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Paul · Posted: Thu May 18, 2006 11:41 am Post subject:

It's most likely bad, but new ones are cheap!

If you want to make sure, pull it, put it in a pan of water and heat it up with a ohm meter attached.

It's an easy job, just top off the coolant tank when you are done and bleed the system.
_________________
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.

White Pony · Posted: Fri May 19, 2006 12:33 am Post subject:

Paul · Posted: Fri May 19, 2006 11:31 am Post subject:

Yes you just remove the wires and unscrew it. A socket works best, but whatever you use, after the first 1/2 of a turn, you'll be able to do the rest by hand.

Remove the air cleaner support bracket to gain access. Doing it from the top has the advantage of nothing will drip in your face.

Do this when the car is ice cold and with the coolant cap on tight. If you're quick, you will lose very little coolant.
_________________
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.

White Pony · Posted: Fri May 19, 2006 12:00 pm Post subject:

Paul · Posted: Fri May 19, 2006 12:04 pm Post subject:

It's a tight fit, wear gloves to protect the back of your hands.
_________________
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.

gohim · Joined: 02 Nov 2002 Posts: 4459 Location: Rialto, CA

I would replacing the temperature switch first, since it is cheap, and you can upgrade to the lower temperature activating switch.

If that does not cure the problem, then you could have a defective cooling fan relay, or a defective ac relay.

White Pony · Posted: Thu May 25, 2006 1:23 pm Post subject:

does anyone have a link to where i can buy the part? the ones on paragon say "in the block" temp sensor...

looking again on Pelican now, I don't remember seeing it though

man my baby is fallin apart fast... on top of chuggin up hills from bad plug wires, having shot brakes now it's starting to shift real hard into second gear and the parking brake is completely shot, so I have to walk like 10 minutes now to work cause I can't park on a hill.
_________________
1987 Porsche 924S
White/black (The White Pony)

For sale, $1000
http://www.924board.org/viewtopic.php?p=173801#173801