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Q: my a/c and heat will not go to the desired location when turning the dial. on 1998 Dodge Ram 1500

When I turn my a/c to vents or floor,it defaults to my defrost.When I turn it to max a/c it goes to the floor & defrost.When I turn the temp switch to heat,and put the dial to the floor,it comes thru my vents and floor.But when I put it to vents,it goes to defrost.I've tried everything I can.I've found no leak,all seros are working,but not going to my desired location.HELP !!!!!!!!!!!!!!1
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It sounds like you have a blend door problem in your Climate Control System. This will need to be inspected by a good Climate Control Diagnostic person.
here is an article that we at RepairPal.com have constructed to help you with this process.

https://repairpal.com/estimator/air-conditioning-diagnosis-cost

here are some shops:

https://repairpal.com/dodge-repair-in-livonia-michigan
the air duct system is run by a vaccum pump under the dash.the plastic cam on the arm is possibly broke. i have metal tape holding that together for a couple of years now.
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