headlights

[kris's66lwb]

ok my headlight dont work i changed the switch and the front wiring now the dome lamp dosent work help

[ClassicAutoResto]

Sounds like a ground problem. Make sure the negative cable on the battery has a ground strap to the body. I get customers with the same problem on older vehicles all the time. I replace the wire, strap, or clean them and usually get lights back immediately. Good Luck... Jerry

[kris's66lwb]

yea but i still have the dome and a tail light if it wa a bad battrey ground wouldnt none of the lighs work

[kris's66lwb]

and the wiring harness throught is afro engneerd where can i get a good reproduction harnes for resonable pirce

[courage 80]

Which switch did you change? Was it the light switch on the dash? I thought that mine was bad because the parking lights and other lights worked but the headlights didn't come on.... turns out the bright light dimmer on the floor had gone bad and that was the problem...... I would try replacing that ... its only 6 bucks or so.

mike

[72GMCburban]

Quick way to find out is to get a wire and run it from a good ground(bare metal, negative batt terminal even. Then touch the other end to the metal housing(if it's taillights or blinker/side markers, or the ground prong of the headlight. If it workers BAM ground issue. I had light troubles 5 or 6 different instances on my 66 every time was a ground. Good luck, and happy bad ground hunting. Oh one time I ran a wire from the engine bay (where I had a good ground) all the way to the taillights so they would work. Left it that way for a year or so.

PS: with a bad ground all lights will work except the one that has a bad ground.

[kris's66lwb]

thanks yall i will try that when i get another chance ijust got him back together to day had to steal hinges for the hood from my otruck now i got park lites

[kris's66lwb]

thanks yall i tryed cleaning the gruond its still a little rusty but they work but the passenger sied light is hella dim ther those new halogen style lights from lmc whats the problem

[kris's66lwb]

have a bunch of new parts comming for my lights maybe that will make them work who knows

[Chevy Fleetside]

If the light is dim that is usually a ground problem.

[kris's66lwb]

cool ground was rusty still so i got abunch of new parts buckets retaines springs and screws and bimmer switch sanded the gound to meatl and it works only on the low beams only when the gages say bright the lights dont work