weaselman

so these are coolant temp sensors? NOT for the gauge inside the truck, that one is lower on the intake..

what size threads are these? i installed an electric fan on my truck and need to get an in water switch, so the fan will turn on, the probe type switch isnt coming on when needed. doesnt matter where i put it.

so i need to know what size threads so i can buy a switch and put in there.

xxxtreme22r

you realize some of those coolant temp switches are required for the ECU to function properly and you can't just remove them right?

corax

The one with the spade terminal (nearest to the front) isn't factory. It looks like the same one I run, and if it is, it will be 3/8" NPT

Check this thread for some info I posted up about putting a coolant switch on a 22RE

weaselman

i never said i was going to remove them. i am going to get a t fitting and have them both.

corax

So what is the aft mkt one with the spade connector for in your picture?

weaselman

thats how it was when i bought the truck, but its thermo switch one and thermo switch 2 according to the factory service manual. i think.