Having problems with my blower switch!! will not blow air when the switch is in high? for my 1999 Gmc Pickup truck 1500 old style body

Asked by Jul 29, 2014 at 07:08 PM about the 1999 GMC Sierra 1500 SL Extended Cab LB

Question type: Maintenance & Repair

Having problems with the heater switch will not work in high for my 1999 Gmc Pickup truck 1500 old style body

1 Answer

90,705

Could be the high blower relay.

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