ducker Posted September 6, 2009 Posted September 6, 2009 I have 2003 HD 2500, the A/C & Heater blower control is erratic. When the vehical is just idling and sitting still the blower quits. When I travel down the road it comes on but only works from 1-4 speed won't work on 5 at all anytime. What's the cure?
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