My Corolla just blew a head replaced head with a.

Tiny
ANONYMOUS
  • MEMBER
  • 1994 TOYOTA COROLLA
  • 190,000 MILES
My corolla just blew a head replaced head with a recoe one all good but notice thermo fan not switching on replaced coolant sensor thermo sensor gauge sender still nothing works with aircon on and will work when thermo switched unplugged got me stumped
Thursday, December 13th, 2012 AT 2:13 PM

2 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check the relay and is it the correct switch? Or is it connected correctly
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Thursday, December 13th, 2012 AT 2:24 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Toyota uses a different cooling fan control system and when the fan switch is unplugged, the fans would come on. System uses a continously grounded fan switch until it is broken when temperaturerange is breached.

How long did you run the engine? Is it overheating when the fans do not come on?
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Thursday, December 13th, 2012 AT 2:34 PM

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