Question about 1998 Jeep Cherokee

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Heater / A-C only blows on windshield (defrost only)

Heater / A-C will not change positions, only blows on windshield, heater control???

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  • Anonymous Mar 22, 2014

    No matter what setting I put the heater on it only blows on the window, won't blow forward or towards the floor

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  • 98 Answers

Most all late model vehicles have heater controls that are vacuum controlled. Chances are that you have a vacuum line that has either come loose, or ruptured causing a leak that will not allow the selector flap to move back and forth. If you can acquire a vacuum routing chart (sometimes these are printed on stickers located inside the hood), then routing this particular line and spotting the leak shouldn't be too much of a hassle. If you find out that your heater selector is mechanical, then there is most likely a small plastic clip that has broken causing the mechanical rod that adjusts the flap to came loose. Either way, whether vacuum or mechanical, it sounds like your selector flap isn't moving. That's what I would check first and foremost. Hope this solves your issue. Have a great day!

Posted on Nov 23, 2008

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