One headlight opens
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Instructor
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From: Litchfield NH
One headlight opens
and one doesnt. I have replaced the actuator motor and the relay. When I pull the headlights up and then go to close them with the headlight switch they both close. When I go to open them the left one opens and the right one doesnt. I can open and close both with a vacum pump manually. I have inspected all the hoses and there are no blockages or holes. Where do I go from here? Any ideas guys. Thanks
Last edited by spanishsilver; Dec 28, 2006 at 10:58 PM.
Team Owner
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From: Columbia Missouri
and one doesnt. I have replaced the actuator motor and the relay. When I pull the headlights up and then go to close them with the headlight switch they both close. When I go to open them the left one opens and the right one doesnt. I can open and close both with a vacum pump manually. I have inspected all the hoses and there are no blockages or holes. Where do I go from here? Any ideas guys. Thanks
You have a vacuum leak somewhere. You'll have to get a diagram of your vacuum system, and check EVERY switch and junction. The switch has vacuum, and the gate switch. The coolant tube to the heater core has a vacuum operated valve, and there are vacuum tubes going to the HVAC controls in the cab. Check there, and at the firewall where they go through. Check everything and I think you'll find the problem. Check the check valve at the brake booster too.
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Le Mans Master
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I had a few bushings that were disintegrated. Replacing them helps. Sounds like it just is too much work for the car's vacuum, but the pump has more . Check the forum search engine. I am sure there is a post on re-building these assemblies.
Team Owner
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From: Columbia Missouri
Good luck. I hope that works out. I still think you have a small leak. I had two small leaks, and my right would only go up after I let the car idle for a few minutes and built up the vacuum.
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From: Litchfield NH
Before I went to work yesterday I checked everything with car running. Took hoses off one at a time on the actuator relay to check for vacum from actuator. There was vacum on each accept the open port on the actuator. So I took the hose from the opening side of actuator cannister and connected to the close side of relay. Low and behold the headlight popped up. Connected all hoses back to normal ports and the headlight went down. So its not the bushings. It seems to be the actuator relay purchased from Ecklers. When I get back home I will take it out and check for blockage on the relay.
Team Owner
Joined: Aug 2006
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From: Columbia Missouri
Before I went to work yesterday I checked everything with car running. Took hoses off one at a time on the actuator relay to check for vacum from actuator. There was vacum on each accept the open port on the actuator. So I took the hose from the opening side of actuator cannister and connected to the close side of relay. Low and behold the headlight popped up. Connected all hoses back to normal ports and the headlight went down. So its not the bushings. It seems to be the actuator relay purchased from Ecklers. When I get back home I will take it out and check for blockage on the relay.
I know it's a pain, but switch the two actuators, and try the headlights again. If the problem changes sides then you know what the problem is...and you'll be very good at changing out the actuators.
Melting Slicks
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From: Long Island New York
I would buy some longer vacuum hose and run them to the opposite sides instead of pulling the actuators out, switching them, and putting them back in, that's a real PITA in my opinion. Then if the problem changes sides you know what you have to do and only do it once.
Le Mans Master
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I would buy some longer vacuum hose and run them to the opposite sides instead of pulling the actuators out, switching them, and putting them back in, that's a real PITA in my opinion. Then if the problem changes sides you know what you have to do and only do it once.
Team Owner
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From: Columbia Missouri