Sometimes late at night I can hear the engine fan?

1989 HONDA PRELUDE
179,000 MILES • 4 CYL • 2WD • MANUAL
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JOHNJOS8
  • MEMBER
  • 1 POST
Sometimes late at night i can hear the engine fan on my Prelude start to run, it goes half an hour then turns off. The car has been sitting in below freezing temps for 2-3 hours before hand, so it still can't think it's hot. any ideas?
thanks
John Carlson
Dec 14, 2007 at 7:23 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Check for a sticking fan relay and the temperature switch for the gauge.
Dec 14, 2007 at 8:08 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,512 POSTS
Sure the cooling fan timer unit is bad, I would swap it out for a new unit. The timer is integrated into the engine control unit. Check out the images (below). Let us know if you need anything else.
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Oct 7, 2024 at 11:01 AM
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