SOHC overheating...

lycanthrope · Post by **lycanthrope** » February 25th, 2007, 5:08 pm

ariesdude

There are 3 coolant thermo sensors in SOHC model - one for the gauge, one for the ecu and the switch for the fan.

Take out the water thermo switch connector - jump the terminals manually and turn ignition on.
If your fan turns on then relay, fan & wiring are all ok - you just have to replace the sensor.
If it doesnt turn on then check the relay and the fan motor.

My sohc is overheating at a standstill or in traffic, if i'm moving it's fine. I can hotwire the passenger-side fan to come on and the engine cools down.

What terminals is ariesdude indicating to jump, the ones at the thermo-switch? I want to rule out the relay, wiring and quite possibly any fuses in between. Upon searching under the hood i found one wire that was completely severed and some other wires that had some abrasions on their plastic coating. The harness for these wires had lingered it's way down to rest gently on the powersteering pulley. The pulley didn't mind this at all. I spliced the severed wire and repositioned the harness, but it still gets hot.

Thanks in advance,
Leon

ariesdude · Post by **ariesdude** » February 25th, 2007, 11:12 pm

I am not sure if this will work on SOHC - in DOHC you can check your fan circuit buy jumping TEN->GND and then turning the throttle a little bit - if everything is fine the fan should turn on. Maybe someone with a working fan and SOHC can check this....

Otherwise just ground the B/G wire going to the one pin thermo switch - that should turn on the fan.

lycanthrope · Post by **lycanthrope** » February 26th, 2007, 10:51 am

thanks man, i'll try when i get home...