head lights
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New User
Joined: Jul 2003
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head lights
I get headlights and the marker and tail lights goes out.I can barley push switch and get marker lights,but then head lights goes out.90 f 250.All fuses are good done replaced switch three times.
Moderator
Joined: Jan 2001
Posts: 57,023
Likes: 2,754
From: Virginia
head lights
Ok, whats the story?
You have just bought the truck and it was messed up or,
You have just bought the truck and a couple days later it failed or,
You just got it back from the body shop and it didn't work or,
You happened to have a burnt out bulb and after you replaced it it quit working or,
You just installed a big stereo and it started failing or,
I am I full of it, and you have owned this truck for years with no problems, and all of a sudden this starts happening?
This is a pretty strange problem. Pushing the switch half-way and only getting marker lights is normal. Pushing it in all the way, gaining headlamps but losing the markers is pretty strange, especially after replacing the switch. Try to see if you can think of anything related and we will try to figure it out.
You have just bought the truck and it was messed up or,
You have just bought the truck and a couple days later it failed or,
You just got it back from the body shop and it didn't work or,
You happened to have a burnt out bulb and after you replaced it it quit working or,
You just installed a big stereo and it started failing or,
I am I full of it, and you have owned this truck for years with no problems, and all of a sudden this starts happening?
This is a pretty strange problem. Pushing the switch half-way and only getting marker lights is normal. Pushing it in all the way, gaining headlamps but losing the markers is pretty strange, especially after replacing the switch. Try to see if you can think of anything related and we will try to figure it out.
Thread Starter
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New User
Joined: Jul 2003
Posts: 13
Likes: 0
head lights
I'm fixing it for somebody else.I was told that they replaced transmission and shorted out everything,and they replaced gauges,but headlight problem still existed.I checked for pinched wires ,but find none.Need a wire diagram for it.Thanks
Moderator
Joined: Jan 2001
Posts: 57,023
Likes: 2,754
From: Virginia
head lights
The official diagrams can be ordered at www.helminc.com.
The haynes manuals on these trucks have some diagrams.
You can go to autozone.com, and click on repair info, and they have some very basic diagrams for free.
The problem with shorting something out on a vehicle, is the factory bundles all the wires tightly together. Sometimes if one gets hot, it will melt together with the others and cause very hard to find problems.
The haynes manuals on these trucks have some diagrams.
You can go to autozone.com, and click on repair info, and they have some very basic diagrams for free.
The problem with shorting something out on a vehicle, is the factory bundles all the wires tightly together. Sometimes if one gets hot, it will melt together with the others and cause very hard to find problems.
