Headlight pops up
Thread Starter
Intermediate
Joined: Jun 2000
Posts: 47
Likes: 0
From: White Lake MI
Headlight pops up
Hey everyone!! I need some advice.
The 82 vette has started to do strange things lately. When I turn off the engine,the drivers headlight pops up. Restart the engine, it goes back down and stays down the second time engine is turned off. Also,just recently,the engine sometimes cuts out unexpectedl(especially when engine is cold or during hot weather). At first I thought the engine stalls were plugged injectors,but now I'm beginning to wonder if its a bad vacuum hose somewhere causing both problems. What do you think? :crazy:
The 82 vette has started to do strange things lately. When I turn off the engine,the drivers headlight pops up. Restart the engine, it goes back down and stays down the second time engine is turned off. Also,just recently,the engine sometimes cuts out unexpectedl(especially when engine is cold or during hot weather). At first I thought the engine stalls were plugged injectors,but now I'm beginning to wonder if its a bad vacuum hose somewhere causing both problems. What do you think? :crazy:
Racer
Joined: Jan 2001
Posts: 495
Likes: 0
From: ma
Re: Headlight pops up (Gary Christensen)
Poor vacuum will cause the headlights to pop up like that,must be a very big leak or the check vale is not working for the vacuum tank not to be able to hold a reserve of vacuum
Drifting
Joined: Aug 2001
Posts: 1,708
Likes: 0
From: North Carolina
Re: Headlight pops up (Gary Christensen)
it seems like a lot of 82's are having headlight problems all of a sudden. Maybe it is their turn to rebuild their systems. :yesnod: Must be a 20 year thing...
Daniel
Daniel
Racer
Joined: Jan 2001
Posts: 495
Likes: 0
From: ma
Re: Headlight pops up (Gary Christensen)
Hose kits as a rule are your best bet,just do one at a time ,here"s a great web site for your vacuum woes...www.members.home.net/awsvette/vacuum#est Also you need to get yourself a vacuum hand pump/brake bleeder,just do one componant at a time as you test and you"ll be OK :cheers: :cheers:
Burning Brakes
Joined: Apr 2001
Posts: 752
Likes: 1
From: Springfield Oregon
Re: Headlight pops up (rdrman)
Mine were doing that one time and it turned out I had a vacuum line that was getting pinched up under the dash. It was after I had had my dash out and when I re-installed it I had one line from the override switch routed around the headlight switch and it wasn't causing any trouble until I tightened up all the screws. Didn't take much I guess. Good luck.
Racer
Joined: Jul 2001
Posts: 260
Likes: 0
From: Ipswich, MA
Re: Headlight pops up (Gary Christensen)
I would say the check valve is your headlight problem.....its located on top of the intake manifold....a little round disk about the size of a quarter. I believe it has on hose nipple on one side and two on the other...not sure...going from memory.
Hey everyone!! I need some advice.
The 82 vette has started to do strange things lately. When I turn off the engine,the drivers headlight pops up. Restart the engine, it goes back down and stays down the second time engine is turned off.
The 82 vette has started to do strange things lately. When I turn off the engine,the drivers headlight pops up. Restart the engine, it goes back down and stays down the second time engine is turned off.
Team Owner
Joined: Feb 1999
Posts: 29,077
Likes: 0
From: Deep East Texas
Re: Headlight pops up (Gary Christensen)
Did you check out the web sites listed in this post?
http://forums.corvetteforum.com/zerothread?id=158950
There's some good info on those pages about how the system works and how to trouble-shoot it.
http://forums.corvetteforum.com/zerothread?id=158950
There's some good info on those pages about how the system works and how to trouble-shoot it.
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Thread Starter
Intermediate
Joined: Jun 2000
Posts: 47
Likes: 0
From: White Lake MI
Re: Headlight pops up (Gary Christensen)
alright guys and gals...I have read the other vacuum sites for info and they are very helpful. It seems most likely that I may have a leaking check valve. The question that is rolling around in my brain is this. If the check valve is leaking, why does only the drivers side headlamp pop up when the engine is turned off? Oh by the way, I assume its normal to have only the one manual override push/pull pin under the steering column? :confused:
Racer
Joined: Jan 2001
Posts: 495
Likes: 0
From: ma
Re: Headlight pops up (Gary Christensen)
It might just be a case that the one that opens has the best seal and the lest friction.And yes there is only one manual over ride switch.Just remember in dealing with cars of this age and the complexity of the system you more likly have alot of little leaks that really add up to alot together than one big major one.Then again you cannot find them until you get vacuum to the tank to find them :cheers: