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i have a 95 jeep cherokee i have a moldy smell coming out of the vents i got a reply telling me to go get a vent cleaner spray i went to check the vents again now no air of any kind is coming out of the vents at all accept for the vents under the windshield hot or cold no other vents are working is the motor dead or the vents clogged somewhere i have no idea what to do please help me out thanks in advance
 

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Probably a vacuum hose leak somewhere. Cracked or dryrotted. I had this problem with a fullsize dodge van I had. Replaced the lines and all worked well afterwards. on my 95 zj the air comes out real lightly out of the vents so i figure I have some leaks starting too.
 

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mine stops blowing from the dash vents and switches to the defrost vents when climbing hills at highway speed or pulling a trailer. all the vaccum lines up top are good, is there any hidden lines to look for which could be cracked, causing this problem?
 
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