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Registered
Join Date: Dec 2001
Location: Cambridge, MA
Posts: 44,322
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high beams turning on themselves
Driving along at night, the high beams turn themselves on by themselves. Hitting a bump they go on, just driving, they go on. Tap the turn signal switch and they go back to low but 30 seconds later...
I haven't pulled it out and looked to see what has worn and if I can fix it. Hoping someone has already and can say, "just do this" and by this I don't mean getting a new one. 
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Tru6 Restoration & Design |
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09-29-2020, 11:34 AM
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I would rather be driving
Join Date: Apr 2000
Location: Austin, TX
Posts: 9,108
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Spring contacts to HB side are worn. There are some threads to bend them out slightly and can be done in the car.
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Jamie - I can explain it to you. But I can not understand it for you. 71 911T SWT - Sun and Fun Mobile 72 911T project car. "Minne" - A tangy version of tangerine #projectminne classicautowerks.com - EFI conversion parts and suspension setups. IG Classicautowerks |
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09-29-2020, 11:45 AM
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Registered
Join Date: Dec 2001
Location: Cambridge, MA
Posts: 44,322
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Thanks Jamie!
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Tru6 Restoration & Design |
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09-29-2020, 11:47 AM
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Join Date: Jun 2015
Location: Chicago, IL
Posts: 3,111
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You can fix his in about half an hour with a couple of screwdrivers - philips to take the column covers off, small flathead to gently bend the contacts (per threads mentioned above by Jamie). Might have to take the steering wheel off. It's easy to figure out just looking at the contacts in the switch with the headlights on.
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'80 SC Targa Avondale, Chicago, IL |
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09-29-2020, 12:06 PM
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Been here a while
Join Date: Apr 2004
Location: East coast, west coast, typ. 35,000 ft
Posts: 2,437
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thanks all, mine does this too....
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looking for 1972 911t motor XR584, S/N 6121622 |
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09-29-2020, 12:21 PM
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ROW '78 911 Targa
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After my signal switch melted down, I installed a new one and it did the HI/LOW dance...
Adjusted the contacts and has been great for 8 or 9 years. Here is the best thread on this . turn signal switch quick fix pictures
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Dennis Euro 1978 SC Targa, SSI's, Dansk 2/1, PMO ITBs, Electric A/C Need a New Wiring Harness? PM or e-mail me. Search for "harnesses" in the classifieds. |
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09-29-2020, 01:20 PM
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Registered
Join Date: Oct 2008
Location: Denver, CO
Posts: 3,494
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add a headlight relay if not already added, otherwise full amperage from headlights will continue to go through (and melt) turn signal high beam switch.
Our host has a well thought out, easy to install setup: https://www.pelicanparts.com/More_Info/JWST911HLPR.htm?pn=JWST-911-HLPR&bt=Y&fs=0&SVSVSI=811 |
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09-29-2020, 02:06 PM
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Registered
Join Date: Dec 2001
Location: Cambridge, MA
Posts: 44,322
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Thanks Dennis! Going on a 10 car drive this weekend and am worried about annoying anyone in front of me.
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Tru6 Restoration & Design |
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09-29-2020, 02:10 PM
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Registered
Join Date: Jun 2015
Location: Chicago, IL
Posts: 3,111
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Quote:
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'80 SC Targa Avondale, Chicago, IL |
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09-30-2020, 04:10 AM
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I would rather be driving
Join Date: Apr 2000
Location: Austin, TX
Posts: 9,108
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Pull the high beam fuse. They won't flash. They won't work.
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Jamie - I can explain it to you. But I can not understand it for you. 71 911T SWT - Sun and Fun Mobile 72 911T project car. "Minne" - A tangy version of tangerine #projectminne classicautowerks.com - EFI conversion parts and suspension setups. IG Classicautowerks |
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09-30-2020, 09:02 AM
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Heinz
