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4 runner, overheats at idle. Fan comes on when 1st start it, but not wen it overheats.

Tiny
MDIMBERG
  • MEMBER
  • 1993 TOYOTA 4RUNNER
  • 200,000 MILES
It was overheating, so we changed the thermostat, didn't help. No leaks. But heats up in less than 10 mins at idle.
Sunday, March 11th, 2012 AT 6:43 PM

2 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Electrical fan should not come on when vehicle is started. If it does, you have a fault with the fan switch or wiring circuit.

Are both fans coming on or only one is?
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Sunday, March 11th, 2012 AT 8:16 PM
Tiny
CADIEMAN
  • MECHANIC
  • 3,544 POSTS
Check the fan relay try swapping it with another 1 in the relay panel. It should run when the a/c on all the time.
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Sunday, March 11th, 2012 AT 8:20 PM

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