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Porsche 944 and 924

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

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#69 of 86 88, 944 electrical problems. by dark944 Jul 03, 2009 (5:52 pm)
Hello all. If anyone has some ideas I would love to hear them. I have an 88 944, it runs great however I have no brake lights or instruments. I was able to check the bulbs. those are fine. the fuses are okay as well. Slot 18 and 19 were not getting power. I checked to make sure everything in box was connected it was. So I figured I would jump the circuit just to see if everything came on and worked. So I jumped power to the fuse slot and I was able to get them working for a few moments. Now here is the odd part. There was a click that came from the cruise control unit. This had also poped right before everything started working. Once I turned the key off it popped again and then nothing worked anymore. All the clicks came from cruise control unit. So what I am thinking is that my cruise control switch or circuit is open and not allowing the power to get to the fuse box. Is there a relay or something that trips out on these in this manner? I would disconnect the cruise control but looking over the diagram it seems the brake lights and clutch also tie in with the cruise on the same circuit. Anyone go through this?
#71 of 86 Electrical problems by tdouble Jul 13, 2009 (7:42 am)
I've had my 84 944 for a few years now howerever its been parke since i bought it . i'm just getting my liscence back and want to put it on the road. All my lights were working last year but now only my headlights and break lights and signals work. my marker lights, tail lights and running lights dont work. also my washer fluid pump wont work either the switch for the pump works ive tested the wire for power and they do work the pump is new and it works but wen i plug it in it wont work. anybody got any ideas wat i should do before i take it to a shop? Replies to this message: dark944 (Jul 13, 2009 9:37 am) tdouble (Jul 20, 2009 5:04 pm) dark944 (Jul 21, 2009 4:28 pm) and 1 more...
#72 of 86 Re: Electrical problems [tdouble] by dark944 Jul 13, 2009 (9:37 am)
Replying to: tdouble (Jul 13, 2009 7:42 am) Hello, looking over all the stuff from my car the circuits seem pretty straight forward. I would start at the fuse box and look over those. If those are good check your bulbs. IF all of that is good it could be the switch for the lights. the first click might be worn or lost contact to acknowledge the switch. Good luck, I know those shops are tough 75$ per hour and 1 hour just to look it over. hard to cough up right now. Replies to this message: tdouble (Jul 20, 2009 5:04 pm) dark944 (Jul 21, 2009 4:28 pm) tdouble (Aug 01, 2009 10:34 am)
#73 of 86 Re: turn signal lever & exhaust fumes [douglass2] by msim Jul 15, 2009 (8:04 am)
Replying to: douglass2 (May 23, 2009 10:33 am) Hi Doug, did you get any answers on your fumes? I am a new owner of a 1988 Lux and face the same problem, but only when windows are down. No problems with leaks to be found underneath or in engine bay. I wondered if there was some vortex at work dragging the air back into the cabin. It is spoiling the fun even though the weather is not great in UK at present. I am new to this site also, so I am sorry if I have missed any posted feedback. Mike Replies to this message: demonpedro (Sep 11, 2009 12:50 pm)
#74 of 86 Re: Electrical problems [dark944] by tdouble Jul 20, 2009 (5:04 pm)
Replying to: dark944 (Jul 13, 2009 9:37 am) Thanks for replying dark944 . I've checked all my fuses, replaced all my lights and my switch. still no changes tho . think i might have to goto to the shop. Replies to this message: dark944 (Jul 21, 2009 4:28 pm) tdouble (Aug 01, 2009 10:34 am)
#75 of 86 Re: Electrical problems [tdouble] by dark944 Jul 21, 2009 (4:28 pm)
Replying to: tdouble (Jul 20, 2009 5:04 pm) Hey t I have one more thing you might look at. I have been going through my car all over even tore the dash apart looking for a frayed wire or short. Looks like my problem was one of the big relays in the fuse box. I pulled out one G15 I believe. It is labeled instruments and light relay in the fuse box. Well the ends of it were blackened. i scraped them back down to shiney metal and plugged it back in. My brake lights and dash came back to life. So i would check some of those they may just be dirty and not have a clean connection. Replies to this message: tdouble (Aug 01, 2009 10:34 am)
#76 of 86 Battery not charging by tdouble Aug 01, 2009 (10:28 am)
Heres my problem. I've got a 1984 944 w/ a new battery and rebuilt alternator. Everything was running good and all the sudden the battery will not charge. i've tested the alternator and it is good. I tested the ignition wire ( wire that goes from ignition to alternator) with the key in the on position and it is not giving any power out. is this my problem? Replies to this message: dark944 (Aug 04, 2009 11:12 am)
#77 of 86 Re: Electrical problems [dark944] by tdouble Aug 01, 2009 (10:34 am)
Replying to: dark944 (Jul 21, 2009 4:28 pm) Hey thanks again for replying . I figured it out it was a bad connection from one tail light to the other. i ran a new wire and viola all my lights work.
#78 of 86 Re: Battery not charging [tdouble] by dark944 Aug 04, 2009 (11:12 am)
Replying to: tdouble (Aug 01, 2009 10:28 am) tdouble, not sure on the ignition wire. I would check your batter cables though. Just because they look good on one end or the other. the cable could be full of corrosion under the shrinkwrap. This could stop the flow of juice back to your battery. Just cut into a section behind your cable where it is shrink wrapped. Open up the shrink wrap and look at cable. The cable should be shiney, if its is full of green or brown crud then i would say just buy a new cable. If cable looks good then just get some electrical tape and wrap the cut section back up.

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