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911 Relays Going Nutz!! Helpppp
My 1979 911 SC has some major (Intermittant) issue with the relay's. When I turn the ignition on the ignition relay toggles like crazy, the car will still start and run but I have no Idea why it happens??? While the relay is toggling, there is a loud buzzing sound coming from the CIS in the engine compartment...
Can anyone shed some light????????????? Please?? Thanks, Alex in NJ |
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07-11-2004, 05:24 PM
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Join Date: Jun 2002
Location: Richmond, VA
Posts: 1,418
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Alarm problems? Intermittent ignition switch?
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David Dryden '86 911 Coupe '05 BMW X5 4.4i |
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07-11-2004, 07:00 PM
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Join Date: Mar 2001
Location: Marysville Wa.
Posts: 22,468
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what's an ignition relay, and what is toggle?
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https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 |
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07-11-2004, 07:09 PM
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Relays going crazy..
I should clarfy,
When I turn the ignition switch, I hear a relay under the hood (the one closest to the driver in the line of round relays in the fuse box) starts switching back and forth like crazy. Also, in the engine compartment I hear a loud buzzing noise. This is intermittant. I ahve changed the relay, checked the battery and connections to no avail.. Also, the car runs and starts fine. Hellllp..... |
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07-12-2004, 05:25 AM
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Join Date: Jun 2002
Location: The Netherlands
Posts: 62
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I am getting similar "chatter" from the relay I am using to run my oil cooler fan. The relay works fine as far as running the fan, but it clicks like crazy when the fan is off.
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1982 911SC Targa 3.6 (now Cabriolet!!!) |
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07-12-2004, 05:46 AM
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Join Date: Apr 2005
Location: Santa Ana, CA
Posts: 1,117
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Resurecting an old thread
I'm resurrecting an old thread...
Mossy97 - did you ever figure out what was causing the buzzing / relay antics in your 79? I'm experiencing the exact same issue with my '82 SC this week and it's driving me crazy. Thanks! |
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12-18-2007, 10:55 PM
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Member 911 Anonymous
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China Made RELAY Hi-Po BUZZZ
Sorry to bring this old thread up but I had a very strange thing happen to me tonight.
Yesterday, I replaced one of my blown Black OEM round relays for the fog light with the Tangential Blower Relay and then placed a back up China made URO brand there. Everything started fine but right after dinner, I got this HORRID BUZZ eminating from my trunk area. Was your relay OEM spec or URO? Jim
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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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03-07-2011, 09:47 PM
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1979 Porsche 911 SC 3.0 
Marble Grey
