HEAT WORKS FOR ABOUT AN HOUR AFTER START

2007 Jeep Grand Cherokee

Tiny

timbishop

December, 23, 2012 AT 8:15 PM

Heat works for about an hour after start. Then blower stops blowing much air. Then if I slow down like coming to a stop, the blower gets really loud like actuator doors are closed. Windows are frosting up and I am 1300 miles from home. How can I manually keep vent doors open or repair this issue? Is it a relay or vacuum issue? Or something else?

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