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Fixing Vacuum System on 85 Chevy Blazer w/2.8L Engine 4WD

My dad is trying to find any information about fixing a Chevy Blazer he bought, that was supposively an 86. He found out quickly the BIG differences in the 85 and 86 and needs ANY info about fixing the Vacuum System.

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My 1998 chevy blazer is stuck in 4wd hi makes clicking noise under clove box


Clove box! How cool, you can bake a ham as you drive. (sorry, couldn't resist). Noise under dash is probably because you have a vacuum leak somewhere and a blend air door is flapping. Part of 4wd system is vacuum operated. There is a vacuum can under the battery (brilliant placement, huh) and the lines to it often fail over time. Use a vacuum gauge and piece of hose, one end in ear, to listen around for a small whistle = leak.

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Labor - my manual says 3 hours.
You'll have to be responsible for figuring out the labor price per hour depending on where you are located.
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I have a 1999 chevy blazer that stuck in 4 wheel drive. How do you get it out.

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