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It sounds like you have two separate problems. Incorrect routing of ventilation is usually caused by bad vacuum motors or loose vacuum lines, but remember that A/C is -supposed to be- routed to the defrost vents when controls are in the Defrost position. The dim temp control readout could be due to a number of causes, but probably isn't related to the other issue you describe.

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โˆ™ 2006-12-18 02:01:55
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Q: What is the cause of ac being mixed to defrost and dash vent plus auto temp control readout is dim?
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