why does heat only comes out on pass side throw AC vent

15

Asked by Dec 19, 2014 at 12:02 PM about the 2002 Pontiac Bonneville SLE

Question type: Maintenance & Repair

I have a 2002 Bonneville the heat only comes out of passenger AC vent?

1 Answer

11,870

Only 2 things that I know of .... That rotary knob that selects AC -Lower -Upper - Defrost ,,, is a combination electrical/vacuum switch that sets the Air Blend vent or the vacuum actuator (under the dash) Check to rotary knob first .... then the actuator

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