Question about 2004 Chevrolet TrailBlazer
My heater motor stopped working on #5 speed and I was told that the heater resistor was bad so I replaced it. the #5 speed started working and I figured that problem was solved. 5days later the same problem happened again no #5 speed. All the other speeds work the same as before, When it was running on #5 the motor sounded fine and pushed out a lot of air more than it did on #4 speed the motor seems to be running fine when it was running. I thought if the motor is going bad it will sound like the motor wants to run slow when on a high speed due to the bushes getting worn...Can someone help with this PLEASE
First check to make sure the electrical connector on your switch is o.k. if it looks burnt /brown or melted replace your switch, and the connector.If all is well then replace your blower motor, it may be drawing to much current (AMPS). Along with a new resistor block.
Posted on Jan 15, 2009
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Posted on Jan 02, 2017
Tips for a great answer:
faulty blower motor resistor. The low and medium speed on blower motor is
controlled by resistor and its actual speed is high. So because resistor is not
working, blower motors actual speed which is high is working.
can be faulty blower motor or faulty blower motor resistor. Get the blower
motor inspected. If it's faulty it has to be replaced.
blower motor testing and replacing, check the link below: ----
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