Headlight problems

Reply Subscribe

Thread Tools

Search this Thread

Jan 14, 2003 | 07:06 PM

Jordan83

Thread Starter

New User

Joined: Jan 2003

Posts: 1

Likes: 0

Headlight problems

I have a '72 F250 4x4 and I am having some trouble with the headlights. I have owned this truck for about 3 months and the guy that I bought it from had tampered with all the wiring on it. I was driving along and hit a bump then the lights for the gauge panel (which never worked before) came on. Right after that the headlights and all of the driving lights started flickering and making a poping noise around the switch. I replaced the switch and it still does the exact same thing. If you turn on the dome lamp when the headlights are on, it will flicker too. Could this be a possible short in the hot wire? No fuses ever burn up when this happens.

Please Help!!
Jordan

Jan 14, 2003 | 07:18 PM

Laughing Gas

Joined: Oct 1999

Posts: 1,165

Likes: 3

From: central Alberta

Headlight problems

Don't know about the popping noise (you'll have to pull the cluster and look for bare/cracked wires) but the flickering is probably a bad voltage regulator.

mike

Jan 14, 2003 | 09:14 PM

Freightrain

Lead Driver

Joined: Jan 2003

Posts: 9,893

Likes: 12

From: Ohio

Headlight problems

Since you have replaced the switch that pretty much removes that from the equation, but I would start looking at the plug and immediate wiring. Seems there is something loose floating around. It all centers around that switch, but since its been replaced it has to be somewhere near. It may take a wiring diagram to figure what has been crossed.

Larry

1967 F100 352/c6
1969 F100 428CJ/4 spd
1959 B model Mack
and a few hot rod FORD cars too

Jan 15, 2003 | 08:30 AM

sullyda1

Senior User

Joined: Mar 2002

Posts: 271

Likes: 0

From: La Canada, CA

Headlight problems

Popping and dimming lights in unison can result from a shorted wire. The popping sound is the arcing of the wire against a ground somewhere and at the same time the lights dim because of the voltage drain through the popping short. Try to determine where that popping sound is located.