hvac control panel won't respond to changes.


Asked by Feb 22, 2014 at 01:22 PM about the 1997 Jeep Wrangler Sport

Question type: Maintenance & Repair

can't get any change,always on defrost.

1 Answer


Sounds like the vacuum hose going from the intake manifold to the climate control panel is disconnected. When the system loses vacuum it defaults to defrost for safety reasons. HTH. -Jim

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