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12-12-2015, 05:57 PM
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#1 |
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Registered User
Join Date: Jun 2013
Location: Palisade mn.
Posts: 75
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Electric problem
I have the headlites and tail lites, signals all working. When I turn the headlights on, all the gauges and wiper motor stop working. Any help would be appreciated. Thanks 1982 k20 Chevy truck
Last edited by Riley012; 12-12-2015 at 06:02 PM. Reason: Forgot the year and make |
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12-14-2015, 12:41 AM
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#2 |
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Registered User
Join Date: Feb 2012
Location: Ceres, Ca
Posts: 14
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Re: Electric problem
Light switch might be bad
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12-14-2015, 10:14 PM
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#3 |
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Registered User
Join Date: Jun 2013
Location: Palisade mn.
Posts: 75
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Re: Electric problem
It's a new switch.
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12-14-2015, 11:35 PM
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#4 |
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Registered User
Join Date: Apr 2014
Location: Bloomington Indiana
Posts: 1,041
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Re: Electric problem
Ground strap between the engine and the cab missing?
__________________
Rich Weyand 1978 K10 RCSB DD. |
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12-15-2015, 12:00 AM
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#5 |
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God is good!
Join Date: Sep 2010
Location: Texas
Posts: 689
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Re: Electric problem
Yep, sounds like a faulty/lack of ground issue. Make sure you ground the dash to the body and the body to the engine and frame. I also ground my tail lamps to the body and run a ground wire from that bolt to the frame, using star washers.
__________________
Mando "It takes a smart man to know when he's stupid." -- Barney Rubble My build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=430367 |
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12-15-2015, 11:16 PM
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#6 |
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Registered User
Join Date: Jun 2013
Location: Palisade mn.
Posts: 75
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Re: Electric problem
I have the cab grounded to the engine and the box to the frame,I do not have the cab grounded to the frame, I forgot about that one, do you think that could be my problem. Thanks
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12-15-2015, 11:25 PM
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#7 |
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Registered User
Join Date: Jun 2013
Location: Palisade mn.
Posts: 75
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Re: Electric problem
White elephant can you tell me if the light switch has its own ground wire coming out of the plug, or is it grounded by the large nut that holds it into the dash. I painted the dash and if it is the nut then it mite not be getting a good contact. Thanks
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12-16-2015, 04:31 AM
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#8 | |
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Moderator
 
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,964
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Re: Electric problem
Quote:
You are not getting a good dash ground to the ground buss bar above the e-brake pedal.
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And please let us know if and how your repairs were successful. |
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12-16-2015, 08:45 AM
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#9 | |
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Registered User
Join Date: Jan 2009
Location: Calgary, AB
Posts: 1,181
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Re: Electric problem
Quote:
Engine to body Those are the only two I have. |
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12-16-2015, 10:58 AM
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#10 |
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Registered User
Join Date: Jun 2013
Location: Palisade mn.
Posts: 75
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Re: Electric problem
Hatzie I have not seen a ground bus bar above the ebrake, I have not reinstalled the ebrake pedal yet. Thanks for the info on the light switch nut.
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12-16-2015, 11:09 AM
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#11 |
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Account Suspended
Join Date: Jun 2011
Location: Des Moines, IA.
Posts: 4,143
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Re: Electric problem
The ground buss bar is actually located on the body directly behind the lower left hand AC vent about a foot inside.
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12-16-2015, 12:08 PM
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#12 | |
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Registered User
Join Date: Apr 2014
Location: Bloomington Indiana
Posts: 1,041
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Re: Electric problem
Quote:
__________________
Rich Weyand 1978 K10 RCSB DD. |
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12-16-2015, 06:44 PM
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#13 |
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God is good!
Join Date: Sep 2010
Location: Texas
Posts: 689
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Re: Electric problem
As has been said, there should be a bolt right behind the far left A/C vent. You can also drill a small hole anywhere on sheetmetal. Remember--you can never have too many grounds. If you've checked all bulbs, fuses, the easy stuff, and all appears okay, it SHOULD be a grounding issue.
__________________
Mando "It takes a smart man to know when he's stupid." -- Barney Rubble My build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=430367 |
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12-16-2015, 06:47 PM
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#14 | |
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God is good!
Join Date: Sep 2010
Location: Texas
Posts: 689
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Re: Electric problem
Quote:
__________________
Mando "It takes a smart man to know when he's stupid." -- Barney Rubble My build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=430367 |
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12-16-2015, 08:45 PM
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#15 | |
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Registered User
Join Date: Jan 2009
Location: Calgary, AB
Posts: 1,181
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Re: Electric problem
Quote:
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