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Old Oct 20, 2023 | 08:55 PM
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Btmanpa
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Cooling Fan

2018 F150 3.5L super crew. Why after driving 10-15 minutes the cooling fans kick up to high speed?
What is the likely cause? What am I looking at repair costs?
Thanks for your thoughts..
 
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Old Oct 20, 2023 | 10:41 PM
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Barring any leaks, the first thing you should you should check is the coolant level. Many people never check that these days. If you find it low, wait until the engine is cooled down, then add coolanat up to the FULL COLD line. After several years, coolant could be lost due to something as simple as the cap loosing it's ability to hold pressure. Start with the small things first.
 
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