Door opens just after cars turns off... faulty vacuum actuator port ?????

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Could it be the wiper door solenoid below the dash by the tach ?

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Or the one behind the dash ON the tach.

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Normally, this is caused by a faulty check valve in the vacuum line coming directly off of the intake manifold(or rear of the carb), in the vacuum line that feeds the headlights and wipers.Could be any one of the other components in the system, too. Just have to start at the source, and go down the line until you find the one component that is leaking/faulty.
I have some vacuum troubleshooting info I can e-mail you, if you would like. Just lemmie know. 

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Joel Adams
C3VR Lifetime Member #56    
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

If you can that will be great...thanks Joel !

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 "You've got mail!" 

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Joel Adams
C3VR Lifetime Member #56    
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"

After doing a few test looks like it's the vacuum check valve. I'm getting air flow in both directions. Ordered new Trico valve should be in a few days.

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  Hope that's all it is. 

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Joel Adams
C3VR Lifetime Member #56    
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"

Adam,

|UPDATED|4/28/2015 1:11:47 PM (AZT)|/UPDATED|

Why, soitanly! 'You've got Mail!"...

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Joel Adams
C3VR Lifetime Member #56    
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"

There is a vacuum diverter valve under the dash by your knees that is used to keep the doors open for repairs once the vacuum bleeds down. One for the lights, one for the wipers. There may be a difficulty with it also. You can also operate the doors by hand from under the car for lights, and the rubber plug on the diaphragm canister for the wiper door can be pulled out and the ram pushed by hand/finger to open the door. Just push it down when done, and replace the plug.

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The problem will be your Actuator Relay. I had a similar problem but it was with the headlight door. I replaced the check valve thinking it might be the problem. NO!

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Replaced vacuum check valve...problem solved.

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Joel Adams
C3VR Lifetime Member #56    
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"