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Underhood lamp

S

scottio

GUEST
Anyone know how to turn the Underhood lamp on?

thanks
scott
 
No it's an '02. The lamp is there but can't figure out how to turn it on. Tried all other lamp switches. The only thing I can find in the manual says that the underhood lamp will turn off with Battery Run-Down protection but no info on how to turn it on.
 
Well, I'll leave this to the '02 people then since I don't have one. I'm sure you've already checked this but you might want to look for some kind of pin switch that may be sticking, is the bulb itself good, maybe a loose wire? Hopefully somebody else w/ an '02 will chime in.
 
when you lift the hood try giving it a little thump. or lift the hood with a little umpf. it should come on for you. it will turn off when you lower the hood. it operates a little strange. guess that's why they eliminated it.
 
It works on a murcury switch. When tilted up the light should go on. If it does'nt, try taking it off the hood and see if it works. The bulbs could be blown.
 
i had the same problem with my hood light when i got my Av...it'd come on every once in a while...but i figured out that it was a loose wire when i had to clean my engine compartment and the light would turn on and off when the stream of water hit the wire...

Patrick
 
You can try to take the light housing off the hood and tilt the thing back and forth. You should feel something sliding around...I think it's some kind of switch. Mine's a little flaky also.
 
Thanks a bunch everyone. I'll give those things a shot. Glad I found this site.
 
Man that sucks about the 03 models not having a darn under hood lamp! I mean what possible reason would they have to delete this??
 
SovereignMgmt said:
It works on a murcury switch. When tilted up the light should go on. If it does'nt, try taking it off the hood and see if it works. The bulbs could be blown.
Click to expand...

It dose not have a Hg switch it has a little ball bearing that slides back / down when you raise the hood and completes the circuit. I have had the same problem 3 times with three different problems.
1. The bulb was bad.
2. The fuse (can't remember witch one) was blown.
3. The contacts inside were corroded.

Yes it can be taken apart it has 3 clips that has to be depressed to get it apart. If you look at it close you will see it. Hope this helps. If you have any question PM me and I will try to help. (y)

Dave :B:
 
The underhood light works like a mercury switch, from the hood being in the HORIZONTAL position when closed the ball bearing gets gets stuck in that position. I have always had to just tap the light with my finger after opening the hood for the light to work. Tap it like a man! :cool:
 
dcp said:
The underhood light works off a mercury switch, from the hood being in the HORIZONTAL position when closed the switch gets stuck in that position. I have always had to just tap the light with my finger after opening the hood for the light to work. Tap it like a man! :cool:
Click to expand...
It is NOT a mercury switch.
 
Hello Folks.
There is nothing like reviving an old thread.
Has anyone else had an issue with the underhood light? Mine used to work if I hit it. Now it doesn't work at all. I've looked on GM sites for the replacement assembly part number. I never could find it.

Any ideas?
Durwin
 
My 96 Yukon had one.  It was on a small reel so you could un-clip it and pull it around to the rear wheel wells.  Never used it like that but had to replace the bulb a couple of times when I got too close with the car wash spray.  You might see if you can find it by searching under Tahoe/Yukon from the late 90's. 

Dutch
 
Try taking it apart. As someone else said, either the bulb is bad or the contacts could be corroded. I had to take mine apart a few years ago. There is something like a big ball bearing inside that rolls back and forth when you open the hood. If that ball is corroded it will also cause the light to not work since it will not be making good contact. I sprayed everything down with WD-40 after I cleaned everything up and haven't had problems since. You also might want to put some bulb grease in the connector after you make sure that you are getting power to the light.

edit: corrected spelling error  :rolleyes:
 
check ebay...they are easy to come by...i add 2 to my hood ( the type that had the cord and magnet assembly).
Good luck!
 
Good Morning,
Does anyone have the generic PN for the underhood bulb? The GM part number is 9437173. I've looked on a few auto parts websites and there is not a standard bulb number listed. I tried the owners manual. Nothing.

I'll probably just end up taking it apart anyway, but it would be nice to have the bulb number ahead of time. How great of GM to delete this in later Avalanche's.
Durwin
 
lamp # 98 is my bet...i found it for an '01 tahoe...take it with you to be sure.
good luck!
 
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