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Porsche 944 and 924

86 messages,  Last post on Nov 05, 2009 at 5:35 PM

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What is this discussion about? Porsche 944, Coupe, Convertible

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#85 of 86 Re: 944 electrics [944project] by todd82ta Nov 05, 2009 (6:15 am)
Replying to: 944project (Nov 04, 2009 2:18 pm) Hey 944project, my reply won't really be much help in terms of solving your problem, but it's a better idea of how to tackle these problems. Rather than focusing on the big issue, a better way to look at it is to try to fix each "system" seperately. For example, if your windows don't work, then focus on fixing JUST that, first.   Unfortunately, you're probably going to have to tear out most of the interior to expose a lot of the wiring. I would even recommend maybe removing the dash so that you can have easy access. The dash is NOT hard to remove. It's only attached by 4 or 6 philips head screws if I remember correctly. You should have easy access to all of the wiring.   You can actually TEST all the wiring (at the doors) where they connect to the harness inside the car by hooking up the leads to a 9 volt battery. A fresh 9 volt battery will provide enough power for you to be able to test the up and down motion (if this works, then you know that you won't need to open up the doors). You can also use a car battery with leads attached of course too.   Anyway, once you've tested the wires at the door, you can then follow the harness all the way back behind the dash and to the fuse panel. I'm willing to bet that more than likely the problem is relays. The relays in the Porsche 924 / 944 are notorious for failing, plus the fact that the car is already 25 years old...   Porsche rather over-engineered this car, and by doing so made it less reliable than it could have been. Almost everything is on a relay, and if you have an 85 vs an 85.5 then you have the old fuse block too... (if you have the old style interior, then you've got the old wiring harness).   Anyway, I hope that helps some. Try to focus on one system at a time... you're going to have to take apart your interior (it's not hard, I gutted mine and then put it all back) in order to properly trace the wires.   Good luck...
#86 of 86 Missing by hawaii9 Nov 05, 2009 (5:35 pm)
I have an 86 944, with a bunch of electrical problems. First the windows quit. That was some time ago. Recently I lost the wipers, both front and rear. The fogs have gone, the air blowers,and the ect. mirrors. I first cleaned 6 of the 7 grounds, checked all the fuses, and then all the relays for continuity,and cleaned the lugs, every thing checks out fine. I did find a squat item in with the relays called "spare links" Could this be the problem? can't figure out hoe to check it. Can anyone help with this? I have no idea what to do next. Help!!!   Thanks   Paul

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