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06-16-2016, 03:24 PM
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#1 |
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Registered User
Join Date: Jun 2016
Location: Whitecourt AB
Posts: 65
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No high beams!
Hey guys, I am having a hard time figuring out why my high beams aren't turning on.... New bulbs, new dimmer switch. Low beams work great. As far as can tell low/high are both the same ground so I assume that it ok, although I did remove the factory ground and scuff the paint off just in case. I have noticed that my high beam indicator on the dash sometimes comes on and sometimes does not... Any ideas? Thanks
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___________________________________________ ‘87 suburban r1500 6/6 static |
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06-16-2016, 05:43 PM
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#2 |
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Registered User
Join Date: Jun 2009
Location: Calgary AB.
Posts: 88
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Re: No high beams!
Have you looked at your headlight switch. You may have a poor connection or charred wires. If you have aspare switch try it .
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06-16-2016, 08:37 PM
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#3 |
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Registered User
Join Date: Jun 2013
Location: Somewhere
Posts: 3,123
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Re: No high beams!
Jump up and down on the dimmer switch 20 times. The contacts get dirty and they stop working.
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06-16-2016, 09:16 PM
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#4 |
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Registered User
Join Date: Jun 2016
Location: Whitecourt AB
Posts: 65
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Re: No high beams!
Dudes its a brand new switch... Ill check my wiring ends thanks
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___________________________________________ ‘87 suburban r1500 6/6 static |
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06-17-2016, 06:05 AM
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#5 |
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Senior Member
 
Join Date: Jun 2015
Location: Atlanta, GA.
Posts: 737
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Re: No high beams!
Don't assume a brand new switch is good just because it's new. Found plenty of stuff was faulty right out of the box. Spent days chasing my tail for no good reason. Just a little hard earned experience.
Check that there is power to the dimmer switch. If no, trace back to power source. If yes, Then check that once you click the dimmer, that power comes out of it. If that all checks out, look at the terminal at the firewall bulkhead connector. test both sides. If power on one side but not the other, you've found the disconnect. Someone on the board has posted wiring diagrams. Print these and make them your friend!
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Jay Gesner Atlanta, GA 1985 C10 Long Bed 4X2 LS 5.3, 4L60E Father/Daughter Project |
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06-17-2016, 10:20 AM
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#6 |
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Registered User
Join Date: Jun 2016
Location: Whitecourt AB
Posts: 65
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Re: No high beams!
Nice thanks for the help! Ill try that when I get a little time in the shop.
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___________________________________________ ‘87 suburban r1500 6/6 static |
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06-17-2016, 05:47 PM
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#7 | |
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Registered User
Join Date: Jun 2013
Location: Somewhere
Posts: 3,123
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Re: No high beams!
Quote:
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06-17-2016, 05:55 PM
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#8 |
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Registered User
Join Date: Apr 2012
Location: san diego ca
Posts: 618
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Re: No high beams!
took 3 switches before I found a good one.
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06-17-2016, 05:58 PM
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#9 |
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Registered User
Join Date: May 2013
Location: Centerville,Ma.
Posts: 1,223
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Re: No high beams!
I have been the bad new part road before also. Electrical problems can be diagnosed with a simple test light. Check if the dimmer is giving power to where it is supposed to and if so work your way to the lights till you find no power. I have also learned to look at anyplace that someone has added or fooled with a wiring harness. A stock harness is pretty trouble free unless water has corrroded a plug. It is where changes have been made that problems begin.
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06-18-2016, 03:51 AM
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#10 |
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Registered User
Join Date: Jun 2016
Location: Whitecourt AB
Posts: 65
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Re: No high beams!
Ok thanks guys I'll test it out.
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___________________________________________ ‘87 suburban r1500 6/6 static |
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06-20-2016, 10:50 AM
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#11 |
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Registered User
Join Date: Nov 2015
Location: portage wi
Posts: 506
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Re: No high beams!
new= Never Ever Worked before
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06-20-2016, 11:03 AM
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#12 |
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Registered User
Join Date: Jun 2016
Location: Whitecourt AB
Posts: 65
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Re: No high beams!
Touche my friend! Haha
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___________________________________________ ‘87 suburban r1500 6/6 static |
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06-20-2016, 01:47 PM
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#13 | |
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Moderator
 
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,977
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Re: No high beams!
Quote:
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1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...
And please let us know if and how your repairs were successful. |
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08-05-2016, 11:28 AM
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#14 |
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Registered User
Join Date: Jun 2016
Location: Whitecourt AB
Posts: 65
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Re: No high beams!
Just thought I'd let you guys know, it turned out to be a loose connection on the light bulb. Just filled the harness with some dialectic grease and boom! Thanks for all your help!
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___________________________________________ ‘87 suburban r1500 6/6 static |
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