heater wont change from vents to defroster what do i do

Asked by cynthiad15 Oct 24, 2015 at 05:20 PM about the 2003 Dodge RAM 1500

Question type: Maintenance & Repair

i cant get my defrost tto blow out also heat wont blow out in the floor

2 Answers
30,935

Tom answered 9 years ago

Do you hear the "mixer" doors when you change the switch? ... if not than a Vacuum line may have come off under the dash. Most directional switches use both vacuum and current and the extreme temperatures sometimes take their toll on the vacuum seals

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