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Old 06-02-2013, 09:30 PM
440sp 440sp is offline
Dodge Ram Forum Newcomer
Join Date: Jun 2013
Location: cullman ala
Age: 58
Posts: 7
Gender: Male
Vehicle: 99 2500 4x4
Trim Level: slt
Color: silver
Engine: 1998-2001 360ci (5.9L) Magnum V8 245hp(standard), 250hp(Sport package)
Rep Power: 0
440sp is on a distinguished road

Check the vac lines that are at the firewall on the passenger side there is a one way valve its hard to describe but those lines control the air doors for the heat and ac defroster etc........that's where I would look first they are prone to crack and the one way valve goes bad
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