Monday, January 12, 2009
1995 Chevrolet C1500 Blower Inop
My 1995 Chevy Silverado's blower motor, ac heat defrost etc... seems to keep loosing power. I took out the glove box door when it was starting to work intermittently and found the red and black power wires hot.melted the connector, so I checked the ground and hard wired the wires(removed the connector) Now its not working again? Help
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The blower relay behind the glove box and is perhaps the easiest place to access the wiring for testing. It is behind the glove box and on top of the heater-a/c case. It should have five wires attached to it. There should be battery power at all times on the red wire, ground at all times on the black wire, the orange wire should have battery power with the key on and the blower switch on high, the blue wire should have varying power on all speeds except high and the purple wire should have varying voltage with the key on and the blower switch in any position except off. Check for power on the purple wire at the blower motor with the key on and the blower switch in all positions and ground must be constant on the black wire at the blower motor. If both are present the blower motor is faulty. Try bumping the motor if power and ground are present to see if you can temporarily reset the brushes in the motor. Please let me know if you need any more help.
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