Question about 2001 Jeep Wrangler

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Loss of climate vent control

When i accelerate past 50 mph, or register greater than 2750rpm, the climate system automatically goes to windshield defrost, no matter what position the control dial is placed on. When i decelerate under 50mph/2750rpm, i regain vent control. Mods are: 4inch siuspension lift, 33x12.50x15 tires, and 1inch throttle body spacer.

What's going on????

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You are losing vacuum source to the system.
There should be some kind of vacuum reservoir under the hood.

Posted on Oct 09, 2008

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