Author Topic: Only head lights are not working.  (Read 3520 times)

Offline james.gribbins.7

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Only head lights are not working.
« on: November 10, 2013, 07:06:05 pm »
78 k10 350. All the lights work except the head lights, I used a volt meter an the bulbs them selfs are not getting power, I checked all glass tube fuses, all ok, changed the light pull switch, nothin. Ive read on here quite a bit what it could be but everyones story was a little off from mine, so any new thoughts on this will help.
Ps I did take the truck off roading for the first time a day before going out, I dont have a splash plate so I did get some muddy water EVERYWHERE.

Offline Jason S

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Re: Only head lights are not working.
« Reply #1 on: November 10, 2013, 07:39:25 pm »
Have you checked power at the floor dimmer switch? 

Have you switched between high and low beam while checking power?
1973 GMC K2500, Super Custom, Camper Special, 350, TH350, NP203, 4.10's
1974 Chevrolet K10, Custom Deluxe, 350, SM465, NP203, 3.73's

"1) Peace through strength; 2) Trust but verify; 3) Beware of evil in the modern world"

Offline james.gribbins.7

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Re: Only head lights are not working.
« Reply #2 on: November 10, 2013, 08:28:36 pm »
No, thats where I was going next, cuz I know those are only $10 bucks to replace if bad. But no I havent, ill try that after work an see what happens. Thanks for the reply.

Offline Jason S

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Re: Only head lights are not working.
« Reply #3 on: November 10, 2013, 08:34:45 pm »
No, thats where I was going next, cuz I know those are only $10 bucks to replace if bad. But no I havent, ill try that after work an see what happens. Thanks for the reply.

You're welcome and no problem on the reply.  Please report your findings, just in case someone else runs into the situation. 

You may also want introduce yourself on the new member page when you get a chance.
1973 GMC K2500, Super Custom, Camper Special, 350, TH350, NP203, 4.10's
1974 Chevrolet K10, Custom Deluxe, 350, SM465, NP203, 3.73's

"1) Peace through strength; 2) Trust but verify; 3) Beware of evil in the modern world"

Offline rich weyand

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Re: Only head lights are not working.
« Reply #4 on: November 11, 2013, 12:46:45 am »
Check the grounds.
Rich

"Working Girl": 1978 K-10 RCSB 350/TH350/NP203 +2/+3 Tuff Country lift

Offline james.gribbins.7

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Re: Only head lights are not working.
« Reply #5 on: November 15, 2013, 07:18:42 pm »
Ok, figured it out. It was silly. My dimmer switch on the floor was either dirty or loose, or even both. But unpkugged it, cleaned all the dirt off and pkugged it back in. bam! Lights. Thanks again. Will do.