Blower motor resistor to solve blower motor stuck on high Speed problem. What is a blower resistor? Blower resistors are resistors which are used to control the fan speed of automotive blowers. The fan speed can be changed either by switching the blower resistor resistance mechanically, using a rotating lever, or electronically by the air conditioning system. The change in resistance then limits the current through the motor, which dictates the speed at which the blower fan works. Blower resistors, being a mechanical component, are prone to wear and are the most common point of failure in a car's heating system. NOTICE: Before changing the old resistor, we suggest that you also check the condition of the old blower. Because an worn blower will lead to high temperature and destroy the new resistor quickly. Fits models: BUICK RAINIER 2004-2007 CADILLAC ESCALADE 2003-2006 CHEVROLET AVALANCHE 1500 2003-2006 CHEVROLET AVALANCHE 2500 2003-2006 CHEVROLET SILVERADO 1500 2003-2006 CHEVROLET SILVERADO 1500 CLASSIC 2007 CHEVROLET SILVERADO 2500 2003-2006 CHEVROLET SILVERADO 3500 2003-2006 CHEVROLET SILVERADO 3500 CLASSIC 2007 CHEVROLET SUBURBAN 1500 2003-2006 CHEVROLET SUBURBAN 2500 2003-2006 CHEVROLET TAHOE 2003-2006 CHEVROLET TRAILBLAZER 2003-2008 GMC ENVOY 2003-2009 GMC SIERRA 1500 2003-2006 GMC SIERRA 1500 CLASSIC 2007 GMC SIERRA 2500 2003-2006 GMC SIERRA 3500 2003-2006 GMC SIERRA 3500 CLASSIC 2007 GMC YUKON 2003-2006 GMC YUKON XL 1500 2003-2006 GMC YUKON XL 2500 2003 ISUZU ASCENDER 2003-2008 OLDSMOBILE BRAVADA 2003-2004 SAAB 9-7X 2005-2009
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