99 Cherokee-weird fan activity??
08-10-2011, 04:00 PM
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Location: Kremmling, CO
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Year: 1999
Model: Cherokee
Engine: 4.0
99 Cherokee-weird fan activity??
Regardless whether I am heating, running AC or using the vent, The fan blows air thru the defroster, then it will switch to the dash vents, then back to defroster, then floor, then back to dash. All while leaving the **** on one position. It's starting to bug me. What could be wrong?
08-11-2011, 10:04 AM
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Location: Bethlehem, PA
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Year: 1992
Model: Cherokee
Engine: 4.0
yea sounds like a vacuum problem. when the controls loose vacuum they default to the defrost position. check your vacuum canister, it could be cracked or on a trail somewhere. its been awhile since i moved mine but i think its behind the fender liner on the pass side. i could be wrong somebody else can back me up on that.
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