Hissing vacuum leak under hvac panel

Anything related to the factory RPO Crew Cab.

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Batass
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Joined: Sun Apr 01, 2007 10:42 am
Location: Manheim, Pa

Hissing vacuum leak under hvac panel

Post by Batass »

Constantly hissing, changes tone as I turn the knob. Anyone maybe know right where the problem could be so I'm not hunting for this needle?
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Cajun
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Post by Cajun »

Read this link.

http://www.s-10crewcab.com/phpBB2/viewtopic.php?t=3197

99.9% sure this will be your problem.