heater fan is intermittant

Asked by ka8ykk Jan 14, 2015 at 04:49 AM about the 2000 Chevrolet Blazer LS 2-Door 4WD

Question type: Maintenance & Repair

my 2000 Chevy Blazer  the heater fan runs intermittently  it's not the motor,where is the
problem?

1 Answer
23,940

Dannyl answered 9 years ago

Sounds like you need to identify the system, the parts in use, their function, and run tests. The control of the blower could be assumed to just be the blower speed switch? It can be as simple as connector fit. or a ground that's loose. Now you would inspect the connections and function/ wiggle test them. Some blower motors can respond to vibration or being tapped on to start working because they arent maintenanced, but replaced.

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