Headlight door dosn't open

[Timboston]

My passenger side headlight door dosn't open? Both headlights are on and when I use the tester on the driverside one it shows power going to it but my passenger side....when i put a tester on it... shows no power going to it? I am thinking a fuse and in my manual shows a fuse for it but I can't find them. I fond a block of 8 fuses under the hood but they were all fine. Has anyone encountered this problem and know of a possible fix?
Txs

 

[Jack Cooper 350]

I recently fixed the driver's side h/light on my 1992 LT1. The problem was the delrin bushes in the motor/gearbox assy. Sounds like yours may be a simple d.c. supply problem, though. When I removed the whole light assembly to work on it on my bench, I first had to dis the electrical connections, which are on a grey plug/socket unit in the area forward of the wheel. Once that was off, I found the feed to the headlight was taped-up, covering it AND the feed to the lift-motor which had been spliced into the cable-form. I cut the motor wiring and (when the fault was fixed and I re-assembled the whole thing) re-made the motor connections with spade terminals. This approach also permitted me to 'run' the motor on a test-rig using a 12v.d.c. psu. What I am getting at, in a round-about way, is that if you identify and separate-out the d.c. wiring to the motor, you can connect 12v. to it and see if it runs. (Use a battery if you don't have a proper psu, but be ready to remove the voltage once the motor has run enough to prove it's OK). If the motor runs and the headlight doesn't lift, you need to get into the little gear-box. It isn't diifficult, but as mentioned above, it's a damn sight easier to work on it if the headlamp assy is off the car.
Good luck
Jack Cooper (in merrie Olde England)
1992 LT1

 

[Timboston]

No Power to the Passenger side headlight motor on my 1995 Vet

Thanks Jack for all the information. I have narrowed it down to a dc problem. There is no power to the passenger side headlight motor...but there is to the Headlight. I have checked all fuses and they seem to be ok?? I didn't actually splice the wires to test the power to the motor, I just used a tested and there dosn't seem to be any power going to it. If you have any ideas on where to check please feel free to pass them along, they would greratly be appreciated.
Txs
Timboston
(Ontario,Canada)

I recently fixed the driver's side h/light on my 1992 LT1. The problem was the delrin bushes in the motor/gearbox assy. Sounds like yours may be a simple d.c. supply problem, though. When I removed the whole light assembly to work on it on my bench, I first had to dis the electrical connections, which are on a grey plug/socket unit in the area forward of the wheel. Once that was off, I found the feed to the headlight was taped-up, covering it AND the feed to the lift-motor which had been spliced into the cable-form. I cut the motor wiring and (when the fault was fixed and I re-assembled the whole thing) re-made the motor connections with spade terminals. This approach also permitted me to 'run' the motor on a test-rig using a 12v.d.c. psu. What I am getting at, in a round-about way, is that if you identify and separate-out the d.c. wiring to the motor, you can connect 12v. to it and see if it runs. (Use a battery if you don't have a proper psu, but be ready to remove the voltage once the motor has run enough to prove it's OK). If the motor runs and the headlight doesn't lift, you need to get into the little gear-box. It isn't diifficult, but as mentioned above, it's a damn sight easier to work on it if the headlamp assy is off the car.
Good luck
Jack Cooper (in merrie Olde England)
1992 LT1

 

[vetteboy86]

Thanks Jack for all the information. I have narrowed it down to a dc problem. There is no power to the passenger side headlight motor...but there is to the Headlight. I have checked all fuses and they seem to be ok?? I didn't actually splice the wires to test the power to the motor, I just used a tested and there dosn't seem to be any power going to it. If you have any ideas on where to check please feel free to pass them along, they would greratly be appreciated.
Txs
Timboston
(Ontario,Canada)

Welcome to the

Where did you take your voltage reading at in determining it was a DC voltage supply problem?

 

[Schrade]

FSM schematics (with comments for complete testing) are here.

Headlight and motor disassembly pics are available if necessary, from original CF sticky...

 

[gmjunkie]

Simple Test..................

Open Rt HL manually,Turn on Lights,Turn Off lights,Does it Close???

 

[Timboston]

Welcome to the

Where did you take your voltage reading at in determining it was a DC voltage supply problem?

The 2 wires going into the motor...the one with the manual nob on top. When I tested the drivers side there it showed power...but didn't show any on the drivers side.
txs