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10-27-2010, 02:46 PM
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#1 |
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Registered User
Join Date: Dec 2009
Location: California, Maryland
Posts: 544
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Strange brakelight problem
I'm pretty good at electrics, but this one's got me.
Just put the truck harnesses in.... All lights work except left brake light. Left turn signal works, front and back. Four ways work all around. Putting right turn signal on and brakes at same time is only time left brake light comes on. Battery cable goes to engine block, battery is also grounded to the body at the radiator support, body is grounded to the frame, back lights are grounded to the frame. ?????????????????
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72 Fleet (died) 78 Step (sold) 55 Step named Fred (sold) 00 F150 68 Step (named El Scorcho by PO) Build thread for the new El Scorcho http://67-72chevytrucks.com/vboard/s...d.php?t=392932 |
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10-27-2010, 02:52 PM
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#2 |
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Gone to greener pastures
 Join Date: May 2007
Location: Gateway to the Delta
Posts: 7,354
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Re: Strange brakelight problem
Right off the top of my head, I'm leaning towards a problem in the turn signal switch.
Is it new or used?
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'69 Chevy 1/2 T LWB Stepper: Daily Beater '72 GMC 3/4 T Fleet: Another Daily Beater '72 Plymouth Gran Coupe: ? "Ah women. They make the highs higher and the lows more frequent." Friedrich Nietzsche "Never kick a fresh turd on a hot day." Harry S. Truman GUN CONTROL: Never having to say, "I missed you." Always fire two warning shots into your attacker's chest area before putting a bullet between his eyes. Paraphrased from Louis Awerbuck |
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10-27-2010, 02:53 PM
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#3 |
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Registered User
Join Date: Dec 2009
Location: California, Maryland
Posts: 544
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Re: Strange brakelight problem
Original....
How would I test this?
__________________
72 Fleet (died) 78 Step (sold) 55 Step named Fred (sold) 00 F150 68 Step (named El Scorcho by PO) Build thread for the new El Scorcho http://67-72chevytrucks.com/vboard/s...d.php?t=392932 Last edited by gkesseru; 10-27-2010 at 02:54 PM. |
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10-27-2010, 03:06 PM
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#4 |
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Registered User
Join Date: May 2010
Location: Hillsboro, Oregon 97123
Posts: 1,300
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Re: Strange brakelight problem
run a Ground from Both tail lights...not just one wire grounding both. I have learned from my friend Dave here Ground is Normally the issue..be sure all your grounds a clean metal
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Measure with a yard stick Mark with Chalk Cut with a torch  Built it yourself, don't count on others to to do it for you or with you. It will never get done |
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10-27-2010, 03:31 PM
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#5 |
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Registered User
Join Date: Dec 2009
Location: California, Maryland
Posts: 544
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Re: Strange brakelight problem
Got it! Dirty contacts in the turn signal switch. I used a fine artists brush (1/8") and lacquer thinner, painting the contacts that I could see when I clicked the switch left and right. Thanks, guys.
__________________
72 Fleet (died) 78 Step (sold) 55 Step named Fred (sold) 00 F150 68 Step (named El Scorcho by PO) Build thread for the new El Scorcho http://67-72chevytrucks.com/vboard/s...d.php?t=392932 |
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