cooling fans wouldnt come on today...?

[rallyingrob]

(yes, i tried searching 1st...to no avail...)

after my first rally-x run today i left the car momentarily with engine running (3 mins max) and got back in to park the car, when i got in, the temp gauge was waaaay up...never had that happen before...

coolant boiling out the overflow tank, the whole 9 yards..

parked and ran the heater fan to help...temp cooled down immediately thank god (air temp approx 2 deg c= about 35 deg f)

fans werent working...checked for a wire having come loose...nope
checked fuses...nope, all good
relays...nope, good too

fans have ALWAYS worked as subaru intended until today, subsequent runs showed no further high temp issues (less than 2 mins each run with approx 1 hr in between)

15 min drive home was fine too

so is there any other sensor besides the one above #5 cylinder that needs to be found/checked?

obviously, i will be checking that one first, since it is accessible and (hopefully) is the culprit!!


is there an easy way to FORCE the fans to come-on?

ie: pull the wire off the sensor maybe?

or perhaps activate the a/c? (a/c pump condensor etc has been removed since it was all shot anyway...) but by engaging the a/c circuit via the hvac controls, would the system automatically engage engine fans do to the increased load?


if all-else fails, i'll just run a wire/relay/ switch to the interior and turn the fans on manually...

or maybe 2 switches to the individual fans and halve the load on my new circuit(s)


rob