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I have a '68 Camaro that I have replaced all the hideaway headlight components (headlight relay switch, bushings, vacuum hoses, vacuum hose filter, etc.). This system worked for a short time but now will not open or close unless I manually push the normal/open tab on the plastic valve on top of the canister in the engine compartment. When on the open side they open and when on the normal side they close. All the hoses appear to be connected and in good shape. Any information you can give me would be of great help. Thank you. TGA
 

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Try going here and checking the hose routing.

http://www.camaros.net/techref/articles/ftecref001.html

There should not be any vacuum at the top of the underhood switch until you pull the dash switch out. This is because there is a spring inside the relay switch that needs vacuum in order to over come the spring pressure to move the plunger inside making the the path between the "Yellow" hose and the "Red" hose thus allowing the doors to open.

also read this post:

http://www.camaros.net/forum/ultimatebb.php?ubb=get_topic;f=5;t=000444#000012

and yet another post:

http://www.camaros.net/cgi-bin/forum/ultimatebb.cgi?ubb=get_topic;f=5;t=001924


Sounds like vacuum is not getting from the dash switch to the relay switch for some reason or maybe a hose is loose to the dash switch....do you here any sucking like a vacuum leak?

[ 11-18-2003, 08:45 AM: Message edited by: CA420 ]
 

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thanx for the info & the diaghrams..very helpful..i noticed on my 68RS that when i pull out the switch or put the underhood switch in manual that the vacuum continues to come out the green hoses..i'm assuming the relay switch is bad..so i hooked a vacuum pump to the red hose & my right side barely opens but left opperates ok...right actuater also ?..thanks again for the help..larry
 
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