4 RUNNER, OVERHEATS AT IDLE. FAN COMES ON WHEN 1ST START IT, BUT NOT WEN IT OVERHEATS.

  • Tiny
  • Mdimberg
  • 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.

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Sunday, March 11th, 2012 AT 6:43 PM

2 Replies

  • Tiny
  • KHLow2008
  • EXPERT
  • 41,981 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
  • MEMBER

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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