Engine fan on and off every 15 seconds at idle, and under 30 mph.
08-26-2021, (Subject: Engine fan on and off every 15 seconds at idle, and under 30 mph. ) 
Post: #5
RE: Engine fan on and off every 15 seconds at idle, and under 30 mph.
First glance it sounds AC related. Of course the sure fire way to find out why the fan is running would be to hook up Insite, open data monitor and see what it reports for the engine fan. Takes the guess work out. Once you know why the fan is running then you can focus on the cause.


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RE: Engine fan on and off every 15 seconds at idle, and under 30 mph. - JimT - 08-26-2021



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