1971 Headlight question
Thread Starter
Instructor
Joined: Feb 2003
Posts: 164
Likes: 1
From: Houston Texas
1971 Headlight question
4 lights: 2 on each side. The inner lights only works as high beams. The outer lights light up both at low beam and at high beam. That is the way it should work, I guess.
My passenger side outer light does not light up at low beam but only at high beam. I wonder if it is a faulty bulb or a faulty connection. I can't tell if the light has two filaments in it (one for low and one for high beam) in which case, the low beam filament may just be fried. If there is only one filament however, that would mean that the problem is not in the bulb.
Any thought?
My passenger side outer light does not light up at low beam but only at high beam. I wonder if it is a faulty bulb or a faulty connection. I can't tell if the light has two filaments in it (one for low and one for high beam) in which case, the low beam filament may just be fried. If there is only one filament however, that would mean that the problem is not in the bulb.
Any thought?
Team Owner
Joined: Sep 2006
Posts: 31,270
Likes: 4,362
From: Westminster Maryland
Hi A,
There IS a difference between the outer/inner headlamps.
Outer:
High Beam and Low beam #4002.
Inner:
High beam #4001.
Perhaps..swap the 2 headlamps and you'll know if it's the lamp or not.
Regards,
Alan
There IS a difference between the outer/inner headlamps.
Outer:
High Beam and Low beam #4002.
Inner:
High beam #4001.
Perhaps..swap the 2 headlamps and you'll know if it's the lamp or not.
Regards,
Alan
Last edited by Alan 71; Oct 21, 2017 at 02:59 PM.
Advanced
Joined: Sep 2017
Posts: 75
Likes: 4
From: Boise Idaho
I have the exact same issue today.. Except my driver's side high beam isn't working either, which may or may not be a bad light.
I will have to swap them as Allen suggested.
Let me know the outcome!
I will have to swap them as Allen suggested.
Let me know the outcome!
Thread Starter
Instructor
Joined: Feb 2003
Posts: 164
Likes: 1
From: Houston Texas
Thread Starter
Instructor
Joined: Feb 2003
Posts: 164
Likes: 1
From: Houston Texas
I thought of swapping the bulbs indeed but the plastic shroud in in the way and it looks like I can't remove it without removing the whole headlight set. I removed the four screws that hold the shroud in place but it is like a puzzle to get it out of that space. Any idea?
Pro
Joined: Sep 2017
Posts: 516
Likes: 72
From: Modesto California
Team Owner
Joined: Sep 2006
Posts: 31,270
Likes: 4,362
From: Westminster Maryland
Hi A,
Typically the headlight bezel should be free to lift off once the 4 screws that attach it to the housing are removed.
Is the bezel 'trapped' by the opening in the hood surround?
Some times this is caused by the headlight not opening quite far enough.
???
Regards,
Alan
Typically the headlight bezel should be free to lift off once the 4 screws that attach it to the housing are removed.
Is the bezel 'trapped' by the opening in the hood surround?
Some times this is caused by the headlight not opening quite far enough.
???
Regards,
Alan
Last edited by Alan 71; Oct 21, 2017 at 05:47 PM.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Thread Starter
Instructor
Joined: Feb 2003
Posts: 164
Likes: 1
From: Houston Texas
[QUOTE=Alan 71;1595808348]Hi A,
Typically the headlight bezel should be free to lift off once the 4 screws that attach it to the housing are removed.
Is the bezel 'trapped' by the opening pin the hood surround?
Some times this is caused by the headlight not opening quite far enough.
???
Regards,
Alan
I would say it is because they do not open far or high enough. The bezel gets trapped indeed.
I have figured out the problem as to the bulb. I just need a new bulb. I will have to figure out the best way to get to it.
Thanks for the help.
Typically the headlight bezel should be free to lift off once the 4 screws that attach it to the housing are removed.
Is the bezel 'trapped' by the opening pin the hood surround?
Some times this is caused by the headlight not opening quite far enough.
???
Regards,
Alan
I would say it is because they do not open far or high enough. The bezel gets trapped indeed.
I have figured out the problem as to the bulb. I just need a new bulb. I will have to figure out the best way to get to it.
Thanks for the help.
Thread Starter
Instructor
Joined: Feb 2003
Posts: 164
Likes: 1
From: Houston Texas
Another question:
While working on the bulb issue, I have noticed that I have a spare female 2-prong socket that comes out of the headlight harness but is not connected to anything, just hanging there.
It is not for the park light nor for the marker light that are both connected and working. I wonder what it is for. I have one on the passenger side and one on the driver side. They get 12volts when I turn the lights on.
Any idea?
While working on the bulb issue, I have noticed that I have a spare female 2-prong socket that comes out of the headlight harness but is not connected to anything, just hanging there.
It is not for the park light nor for the marker light that are both connected and working. I wonder what it is for. I have one on the passenger side and one on the driver side. They get 12volts when I turn the lights on.
Any idea?
Team Owner
Joined: Jun 2001
Posts: 23,375
Likes: 1,067
From: Virginia USA
Low beams should have 3 terminals on the bulb and high beams only have two.
Team Owner
Joined: Jun 2001
Posts: 23,375
Likes: 1,067
From: Virginia USA
Another question:
While working on the bulb issue, I have noticed that I have a spare female 2-prong socket that comes out of the headlight harness but is not connected to anything, just hanging there.
It is not for the park light nor for the marker light that are both connected and working. I wonder what it is for. I have one on the passenger side and one on the driver side. They get 12volts when I turn the lights on.
Any idea?
While working on the bulb issue, I have noticed that I have a spare female 2-prong socket that comes out of the headlight harness but is not connected to anything, just hanging there.
It is not for the park light nor for the marker light that are both connected and working. I wonder what it is for. I have one on the passenger side and one on the driver side. They get 12volts when I turn the lights on.
Any idea?
Team Owner
Joined: Sep 2006
Posts: 31,270
Likes: 4,362
From: Westminster Maryland
Hi,
Here's the headlight switch and it's electrical connection that 'ta' described.
When both of the doors are fully opened the switches shut off the headlight warning indicator located on the center gauge bezel.
Regards,
Alan
Here's the headlight switch and it's electrical connection that 'ta' described.
When both of the doors are fully opened the switches shut off the headlight warning indicator located on the center gauge bezel.
Regards,
Alan