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blower fan takes long time to come on. colder it is, longer it takes. thermostat replacement accomplished nothing

Answers from the Automotive Experts

Jessica Howe, Automotive Expert & Coach at


Thank you for writing in. There are several other components that can cause issues with the blower fans. The engine temperature sensor should be tested. You may also want to have the fan itself tested, as it may be an electrical issue with the fan or its module. Only further testing will tell. For more help, contact your local Certified Female Friendly service center near you. 


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