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06-09-2003, 08:50 PM | #1 | |
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Join Date: Jun 2003
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Vaccume question
I have a 99, 1500 with the 5.9 I'm not exactly sure when it started but the main vacume hose that plugs into the air filter is SO loud. The ONLY way I can make it stop is to unplugg the PCV valve from the passenger side valve cover. I find it weird when I do this in that the PCV valve is sucking air, & So is the valve cover hole where it plugs into. It seems they cancel each other out but that's the only way the SUPER LOUD sucking stops. Any ideas?
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