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I replaced all the hoses with new tubing last week but my lights still won't go down. I'm going to check vacumn (14 lbs) tonight to see if that helps. How often does that vacumn switch on the light switch go bad? Where do you go ti get a replacement. Auto zone doesn't know what I'm looking for. Any other ideas what could be bad?
 

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You probably already did this but check all your vacuum lines. you have a canister on the inside of your fender, check that for leaks also the switch in the fron tdriverside engine compartmwnt, and then finally the three vaccuum hoses that go to your headlight switch, Sounds like you may have forgotten to attach one, or gota few mexed up, happened to me as well.
 

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Do you have a check valve? That was my problem. You need to make sure you have one installed in between the feed line from the intake manifold to the vacuum tank under the fender..
 
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