Home page
SPONSOR AD

Support our Vendors!  |  Advertise Here

Topic: Intermittent Headlight Problem

in Forum: C4 Electrical


Already a Member?
Login
Not yet a Member?
Register for Free!

Intermittent Headlight Problem (1/4)
 4/11/13 1:57pm
tbirdsps
Standard Member
Send Private Message

Ridgecrest, CA - USA

Vette(s):
1990 Coupe


Joined: 2/19/2013
Posts: 117

Here's my problem and it's been very intermittent.

Last nite after the car club meeting I turned the headlights on and they did not rotate but the headlights were on.

I shut them off and turned them on again and the right one came up and both were on. So, I turned them off again, this time the left one came up and the right one stayed down and both lights were on.

One more time to off then on again and the both came up and worked so I went home. The both stowed correctly.

This morning the routine was the right on came up but not the left. Turned the switch off and it stowed. One again and they both came up.

I tried again at work and they both worked normally.

So, what kind of gremlin named Murphy is in this system? I forgot to mention that it
 
I forgot to mention it is an electrical problem.  When the lights don't move the motors are not running.  So, relay maybe?  Wondering if there are two as sometimes one will move and the other not.  Strange.


|UPDATED|4/11/2013 10:57:01 AM (AZT)|/UPDATED|


______________
If it isn't broke, I haven't fixed it yet....
Our Sponsors help support C4VR
Re: Intermittent Headlight Problem (2/4)
 4/11/13 8:18pm
Roger Lowe
Standard Member
Send Private Message

Joined: 4/11/2013
Posts: 1

The bushings tend to disintegrate over time and can be purchased on line for under $10.  I had one fail, but replaced both sides.  I didn't have to replace the gears or motors, but you can upgrade the gear.

http://www.mamotorworks.com/corvette?frame=1.853

Roger


|UPDATED|4/11/2013 5:18:16 PM (AZT)|/UPDATED|


______________

Re: Intermittent Headlight Problem (3/4)
 4/12/13 1:07pm
Adams' Apple
Standard Member
Moderator
Send Private Message

Duncanville, TX - USA

Vette(s):
1985 Coupe-L98/Auto,Bright Red/Carmine. 1974 Coupe-L48/4speed, Medium Red Metallic/Black Deluxe.


Joined: 3/18/2009
Posts: 2230

Yeah..it certainly sounds more like an electrical issue than mechanical. You should have a "Headlight Control Module" on the '90 car...not relays. That would be the most likely suspect...



|UPDATED|4/12/2013 10:07:52 AM (AZT)|/UPDATED|


______________

Joel Adams  
My Link

 
   
(click for Texas-sized view!)             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

Re: Intermittent Headlight Problem (4/4)
 4/14/13 7:10am
eddie20890
Standard Member
Moderator
Send Private Message

lanoka harbor, NJ - USA

Vette(s):
1990 L-98 white/ red/black leather interior targa top auto 1975 L48 blue/black leather interior t tops auto


Joined: 3/22/2009
Posts: 1363

the headlight control joel mentioned is located on the left side inner wheel well. the electrical test procedure is in the service manual. i replaced a motor and found out that control was malfunctioning. the headlight control is actually the relays.

______________


















the dynamic duo


c3vr life member #97
Our Sponsors help support C4VR