fan works or dont work

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Tutor: None Selected Time limit: 3 Days

My fan on a 2006hhr works sometimes and not all the time.my book shows no fuse for it.Is it tied into something else

Nov 12th, 2013
fan is kick in when ac turn on or engine reach the high temperature to be cold down by order com from the engine temperature sensor
to the ECU THEN TO THE fan RELAY .some car fan have own ecu . if the car not overheat and the fan kick in then shut of kick in shot of this is normal if the car overheat LOOK for air bubble in the cooling system bad thermostat , faulty temperature sensor . relay . ECU .
Nov 12th, 2013

I mean the inside fan that helps heat and defrost.does the engine have to be up to temp. for that to run.

Nov 12th, 2013

yes the engine have to be running in order to have heat .the blower motor that plow the air  have resistor to control speed if the resistor faulty it may not work in some speed or kick in at all or some time it work some time it wont  

Nov 12th, 2013

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Nov 12th, 2013
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Nov 12th, 2013
Dec 9th, 2016
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