I posted a new thread on 3/01 about the hot or cold air from my system after several minutes stops blowing out from any vents but seems to be blowing in somewhere behind the passenger's air bag. Something else I discovered this morning it that my clutch turns if the system is on or off and the two tubes on the top of my system under the hood were covered in ice (system was not on) after returning home from a 30 mile trip. 185K miles on the truck

Can someone please help?

Thanks, Harley

 

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