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2002 Jeep Wrangler
Problem for Jeep 2002 Wrangler

Air flow wont change from defrost to other




By dfarris4 on Jul 01, 2009

" "
air flow wont change from defrost to other positions.
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Best Solution

posted on Jul 01, 2009
Very Helpful)

emissionwiz
emissionwiz

Rank: Guru  Jeep Cars  Expert
Rating: 90%, 8550 votes
The AC functions of defrost, vent and floor are controlled by vacuum motors, you have a vacuum loss problem from the engine, check for a small disconnected vacuum hose under the hood from the engine to the firewall..
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Solution #2

posted on Jul 10, 2009
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waydownupon
waydownupon

Rank: Apprentice 
Rating: 0%, 0 votes
There are two places where the vacumn hoses come loose or off.

One is under the battery box ... small hose goes on nipple there.

Also when standing in front of the jeep. to the right side of the engine you will find a tee shaped hose that one of the hoses goes onto a nipple in that area.
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