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Ok thanks guys. Appreciate the tips. Will see if i can trace the pumps. Its annoying as on my car its behind the rear driver side quarter panel.
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1975 Aubergine 911S - Barney "When that doesn't work, and it doesn't quite often, it's as though your face has been amputated." - Jeremy Clarkson |
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07-15-2011, 07:12 PM
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Oh my
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
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07-15-2011, 07:15 PM
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Location: Sweden
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Quote:
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SEARCHING FOR ENGINE 6208326 (last seen in car with VIN 9111101452) 911E Coupe -70 Carrera 3,2 -84 Sold |
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07-15-2011, 11:22 PM
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But wouldnt the cables be attached to the battery posts if I had an alarm? I tried disconnecting those and it didnt make a difference?
Car was driving fine for hte last few months so just random that its doing this now. a week ago i remember reading the battery at 9Volts so it still had juice then it got drained to 0.5 volts over a few days so there was defitnely a drain but the pump wasn't turning on...only when i attached it to a jump lead source it started doing that so I must have done something... i did check the horns and maybe plugged the leads into the wrong sockets on the horns.. i'll give that a shot next
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1975 Aubergine 911S - Barney "When that doesn't work, and it doesn't quite often, it's as though your face has been amputated." - Jeremy Clarkson |
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07-16-2011, 10:17 AM
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Join Date: Jun 2009
Location: Manhattan Beach, California. Factory Delivery-Original owner-Retired engineer
Posts: 5,238
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Drained Battery.
As per the previous post, lifting fuses, and other ideas is a good beginning.
If your car has/had an after market alarm system, this may well be the issue. I have helped other P-Members with this identical issue, which, in many cases led to a defective/alarm system. Here is a link which for your model/year electrical diagrams. Manuals You may pm me as required. Good luck, Gerry
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1986 911 Targa. Per Road and Track magazine: Only in L.A.: In the window of a bar in Hermosa Beach, California. "Happy Hour prices during all car chases." Last edited by 86 911 Targa; 07-16-2011 at 11:57 AM.. |
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07-16-2011, 11:12 AM
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Ok got another update
Had a play ard again. Few funny things now. Firstly I dont think its the fuel pump, I heard a whirring sound and assumed it was but it wasn't. Its the 14 pin connector in the engine bay. Checked voltage and there was 12V coming from pins 14 & 11 even when the car is turned off. So a few electrics stay on if the car is turned off if the14 pin connector is connected... Thought it may have been the 3 fuse panel i installed and maybe the wires i connected to each post may have been wrong but I tried taking out the fuses and it didnt make a difference.. Checked back of fuse panel and its 25 25 5 (3-2-1) so i changed the last one. Didnt make a difference. Found the wire attached to the distributor was also disconnected(must have knocked it loose when checking the cap and rotor) so I connected that back up. Tried starting the car for the hell of it and it did start up but ran like ****. Kept backfiring so turned the ignition off but the car kept running! Had to disconnect the 14pin connector to turn the whole car off. So thats where I stand at the moment... welcome anymore tips.
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1975 Aubergine 911S - Barney "When that doesn't work, and it doesn't quite often, it's as though your face has been amputated." - Jeremy Clarkson Last edited by privatepang; 07-16-2011 at 11:54 AM.. |
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07-16-2011, 11:48 AM
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Ok found this.
 So makes sense why the car wouldnt turn off as 14 & 11 is Starter and Alternator. Hopefully i didnt screw up the alternator by unplugging the 14pin connector....
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1975 Aubergine 911S - Barney "When that doesn't work, and it doesn't quite often, it's as though your face has been amputated." - Jeremy Clarkson |
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07-16-2011, 12:02 PM
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If your alternator/regulator not producing 14.1 - 14.7 volts to charge your battery and provide enough juice for the operation of the car, electrical demand of the running car will discharge a good battery. Alternator and or regulator must be tested to make sure that problem does not lay there.
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Don 1982 Guards red 911SC |
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07-16-2011, 12:08 PM
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Well my main issue right now is that when the car is not even on, a few electrics are working...
Need to work this issue out before i even look at the battery recharge...
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1975 Aubergine 911S - Barney "When that doesn't work, and it doesn't quite often, it's as though your face has been amputated." - Jeremy Clarkson |
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07-16-2011, 12:15 PM
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Ok just to finish off this thread.
Brought it to a fellow pelicanite wrench here in Van and he was able to help me troubleshoot the issues. Ended up being 2 things. First was the alternator needed a rebuild. Once that was done, still had to troubleshoot the constant power even when the ignition was off and that was caused by a faulty headlight switch. This was replaced and now my electrical woes are fixed! YAY!
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1975 Aubergine 911S - Barney "When that doesn't work, and it doesn't quite often, it's as though your face has been amputated." - Jeremy Clarkson |
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10-24-2011, 08:35 AM
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What was the specific failure of the headlight switch?
Best! Doyle
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Recording Engineer, Administrator and Entrepeneur Designer of Fine Studios, Tube Amplifier Guru 1989 Porsche 911 Carrera Coupe 25th Anniversary Special Edition Middle Georgia |
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10-24-2011, 12:40 PM
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Not quite sure to be honest. Think it was causing an open circuit so would just have constant draw on the battery.
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1975 Aubergine 911S - Barney "When that doesn't work, and it doesn't quite often, it's as though your face has been amputated." - Jeremy Clarkson |
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10-24-2011, 12:50 PM
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Location: Maitland, Florida
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Sounds like a diode is failed in the alternator. That will drain the battery.
Need a new alternator, or rebuild your existing unit. Quick check. If you can charge the battery enough to start the car. disconnect the ground from the battery. If you tap the ground cable against the neg pole of the battery and you get small spark, you have something draining the battery. Nothing else should be powered to draw that much current.
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82 911SC Targa (05 Boxster S ) gone, but not forgotten 87 Suzuki GSXR-1100 1953 MG TD Mk II |
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10-26-2011, 09:42 AM
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Quote:
Yeah that was all done and issue is fixed(as above). Thanks for the tips tho.
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1975 Aubergine 911S - Barney "When that doesn't work, and it doesn't quite often, it's as though your face has been amputated." - Jeremy Clarkson |
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10-26-2011, 10:19 AM
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Barney
Marble Grey
1982 Porsche 911SC
