Cooling fan issue?

2007 MAZDA 6
145,000 MILES • V6 • 2WD • AUTOMATIC
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BHAMDOC1973
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Fan was continuously running while car was started, even when cold, even when the A/C was off. Replaced the fan module as it's a common with these. Started it and fan was off, started A/C and fan came on. Left it running 30 minutes, fan is still on high but sometimes goes down a bit because of this heat we have. Turned A/C off and she is still running, not sure if it should be running while car coolant temperature is at optimum, right in the middle, does not overheat. Shouldn't it stop at some point even if not driven once it's cooled to a specific temperature? Also, before i replaced the module it would continue to run after i shit off engine for 20 seconds, now it does for 5 seconds. Not sure if i have an issue.
Jul 20, 2023 at 8:04 AM
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STRAILER
  • ASE Certified Mechanic
  • 54,837 POSTS
  • ASE Certified Mechanic
This sounds like normal radiator fan operation for how weather, can we run a CAN scan to see what comes up? Here are the cooling fan wiring diagrams so you can see how the system works. You might want to swap out the engine temperature coolant sensor which I have included. Check out the images (below). Please let us know what happens.
Jul 22, 2023 at 10:31 AM
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