Head light fuse keeps blowing!
08-13-2003 | 10:24 AM
#1
Thread Starter
Rennlist Member
Joined: Feb 2002
Posts: 475
Likes: 2
From: Simpsonville, SC
Head light fuse keeps blowing!
My passenger side head light fuses keep blowing. I last replaced both of them about two weeks ago and this morning they were toast again. I am not all that great with the electrics ... anybody have any ideas?
08-13-2003 | 11:38 AM
#4
Nordschleife Master
Joined: Jun 2001
Posts: 5,159
Likes: 1
From: Minneapolis, USA
Don, you want to check the headlight wiring where it runs up to the headlight bucket and flexes. What happens is the wiring starts to fracture after all the years of flexing as the buckets go up and down. Then it begins to short every now and then when it decides to.
If your wiring harness is the type that is plastic cast over the individual wires you need to peal that off to get to the break for repair. If you grab the harness and squish and wiggle it around to repeat the failure you can narrow down where the fracture is so you are not pealing off a couple feet of insulation.
If your wiring harness is the type that is plastic cast over the individual wires you need to peal that off to get to the break for repair. If you grab the harness and squish and wiggle it around to repeat the failure you can narrow down where the fracture is so you are not pealing off a couple feet of insulation.
08-13-2003 | 11:39 AM
#5
In the Sink
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Joined: May 2003
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On my car, the passenger's side low beam was not working properly.
Disconnect and remove the headlight motor. By hand, raise and lower the headlights. You'll see a point where the wiring harness bends and unbends on the passenger's side, just after a plastic clip that holds the harness to the same surface that the frame ground is on.
When I cut the rubber shielding of the harness at that point, I found that the low beam power was cut (had snapped from the bending and unbending).
I bet that in your case, the ground and one/both of the power lines to the headlights has been cut, and they are intermittently making contact with one another.
Is it the high beam fuse, low beam fuse, or both fuses that are blowing?
-Kevin
Disconnect and remove the headlight motor. By hand, raise and lower the headlights. You'll see a point where the wiring harness bends and unbends on the passenger's side, just after a plastic clip that holds the harness to the same surface that the frame ground is on.
When I cut the rubber shielding of the harness at that point, I found that the low beam power was cut (had snapped from the bending and unbending).
I bet that in your case, the ground and one/both of the power lines to the headlights has been cut, and they are intermittently making contact with one another.
Is it the high beam fuse, low beam fuse, or both fuses that are blowing?
-Kevin
08-13-2003 | 01:13 PM
#6
Race Car
Joined: Jun 2002
Posts: 3,781
Likes: 0
From: Costa Mesa, California
Hmmm... so we need to mount the headlights firmly on the chassis and use a mirror or two in the flip up headlight frames to get the beams out the front of the car.
Well, maybe not.
Still would like to put the smaller rectangular head lights in and not raise the assembly so high.
Well, maybe not.
Still would like to put the smaller rectangular head lights in and not raise the assembly so high.
