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I'm trying to figure out why my engine overheats

Tiny
PROF_M1K3Y
  • MEMBER
  • 1991 HONDA CIVIC
  • 275,000 MILES
Hi, I have a 1991 Honda Civic Sedan. Is my radiator fan only meant to come on if my air conditioning is turned on? I have not noticed it coming on at all when my a/c is off.

I think I've ruled out a blown head gasket, but I know I need a new radiator, because it's damaged. I have reason to believe that a faulty fan my have caused the damage.
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Monday, February 20th, 2012 AT 8:35 AM

2 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
There is a coolant temp switch that grounds to turn on the fan at the front corner of the engine.
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Monday, February 20th, 2012 AT 10:54 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
The fan switch is located above the oil filter so you need to get under the vehicle to check if the wiring is intact.
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Monday, February 20th, 2012 AT 12:53 PM

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