The heater works for about an hour after the car.

Tiny
TIMBISHOP
  • 2007 JEEP GRAND CHEROKEE
  • 70,600 MILES

The heater works for about an hour after the car is initially started. Then the air stops But the blower still sounds like it is working. When I come to stop the actuator doors sound like close doors close making a very loud air rushing noise but still no airflow.

If I shut the engine off for 30 to 45 minutes everything resets to normal. We are on 1300 mile trip home and cannot repair on the road but is there a way to get the doors to open manually or is this a relay or vacuum hose issue

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Sunday, December 23rd, 2012 AT 8:30 PM

3 Replies

Tiny
TIMBISHOP
  • MEMBER

100% reproducible. Just pulled off interstate again

Works fine for an hour, air stops moving but tiny amount if air coming out is very hot, and then when pull off highway it sounds like its blowing 100 mph but still no air flowing.

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Sunday, December 23rd, 2012 AT 10:54 PM
Tiny
TIMBISHOP
  • MEMBER

So you have to pay to get an answer? Why offer free option then? Ill pay if someone can solve issue. As it is we're stranded

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Wednesday, December 26th, 2012 AT 5:13 PM
Tiny
TIMBISHOP
  • MEMBER

Found a master mechanic (the guy actually travels the country training jeep mechanics) who knew immediately what the issue was.

The A/C was on no matter the control settings and freezing up at highway speed thus starving the fan of air. Unplugged the A/C and had zero issues all the way home.

Thanks Jeff!

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Monday, January 7th, 2013 AT 4:25 PM

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