 Headlight is Dim, Is there a separate ground? |
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| Porsche Rescue |
 Nov 14 2003, 10:44 PM
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#1
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Saving and Enjoying Old Porsches  Group: Members Posts: 2,978 Joined: 31-December 02 From: Bend, Oregon Member No.: 64 Region Association: None  |
My right headlight is very dim (almost a glow). Same on high or low beam. My first guess is a bad ground connection. Is there a separate ground for each headlight? Where should I start the troubleshooting process? The left side is fine.
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| JWest |
Nov 14 2003, 11:05 PM
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#2
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Senior Member Group: Members Posts: 1,662 Joined: 6-January 03 From: Fort Worth, TX Member No.: 97 Region Association: None 
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Yes, it is a welded 6mm stud (10mm nut) right behind each headlight (in trunk).
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| redshift |
Nov 14 2003, 11:09 PM
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#3
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Bless the Hell out of you! Group: Members Posts: 10,926 Joined: 29-June 03 Member No.: 869 |
My left one was dim 3 nights ago.
Grounds at lights, relays, headlight switch, all cleaned, all better.. way, way better. M |
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| Porsche Rescue |
Nov 15 2003, 02:53 PM
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#4
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Saving and Enjoying Old Porsches Group: Members Posts: 2,978 Joined: 31-December 02 From: Bend, Oregon Member No.: 64 Region Association: None |
Problem solved. It was ground problem. Cleaned the stud in the trunk. No help. Removed the left bulb and found the ground wire was attached to the plug with about two strands. Reconnected and I have light.
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| McMark |
Nov 15 2003, 03:33 PM
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#5
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
Clean electrical contacts are good! A while back I unplugged the right headlight for some reason and once I had it all back together that side was noticably brighter just from a quick unplug - replug.
Every five years make sure to unplug and clean all the electrical connections on the car. Should only take 4-5 hours. Add it to the maintenance schedule. |
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| madd_dogg_914 |
Nov 15 2003, 04:45 PM
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#6
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Member Group: Members Posts: 478 Joined: 30-March 03 From: Vacaville, CA Member No.: 497 Region Association: Northern California |
(IMG:style_emoticons/default/agree.gif) That is some sound advice there! If you don't it will degrade the wires so cleaning later will be less effective . . . Just ask Mr. Bowsbly
-Chris |
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