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I'm sure this has been asked before but when I tried searching this topic but got 25 pages of results. After I couldn't find my answer on the first page of results I figured it would be easier to ask.
Is there a way to test the diaphram on the actuators?
My lights were not going up or down. I tested everything with my might vac and have identified two issues.
1. Vacumm canister was not holding vacuum due to a crack. I made a temporary repair just so I could get the canisiter to hold vacuum. I will be ordering a new one of these.
2. Faulty Actuator. My boots and seals are trashed. Before I order those, I wanted to verify that the diaphram is still good. I would hate to order the rebuild kit to find out that the actuator needed replacement anyhow.