Question about 1986 Chevrolet K1500
Aside from the obvious fuse or relay in power supply, it could be the blower switch, resistor pack usually located in heater box that contols speed, or the blower motor itself. Unplug wires to blower and measure batt. voltage with switch on. If voltage present, use ohmmeter to test blower resistance. No resistance, motor burned out. Check wiring for a cut/brake in circuit.
Posted on Oct 07, 2009
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Posted on Jan 02, 2017
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