Yukon HEAT PROBLEM............?
#13
Bad control head :!: :!: Go out to PDC under hood look for HAVC fuse make sure it isn't blown. Not sure on your type of car i work on Chrysler/Dodge but they are just about the same. Also check and see if there is a fuse panel inside. It is either no power supply or the Control Head is faulty :!: You see after 2002 heat and A/C is controlled by electronic accuators, Cable or vacum is long gone, Small electrical motors moves door's inside heater box :!: Another thing is does your car have auto temp control :?: If so it has a fin sensor that is in the heater core if set on auto it will not let blower work untill core reaches a set temp :!:
Mark
Mark
#14
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Join Date: Mar 2007
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Not yet !! haven't had time been plowing snow everyother day. I see the bugger sure is in a tight space, Its in the barn warming up right now was going to work on it tomorrow.
Thanks Mark now I have more to look at. JK :lol:
Thanks Mark now I have more to look at. JK :lol:
#15
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Join Date: Mar 2007
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Switch the resistor but wasn't the problem !! Mark (mopar1968) hit it on the head It is the accuator switch that operates the doors in the duct work, Now that is hard to get to, have to take almost the whole dash out of vehical to get to it.
#16
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Join Date: Mar 2003
Location: Fountain,MICHIGAN
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Heat
Originally Posted by blowninjected540
Switch the resistor but wasn't the problem !! Mark (mopar1968) hit it on the head It is the accuator switch that operates the doors in the duct work, Now that is hard to get to, have to take almost the whole dash out of vehical to get to it.
GOODLUCK!
Later
G 8)