i just installed a new rad with electric cooling fans in my 84 camaro z28( v8 305). is there any other place i can put the coolant switch other that on the pass. side between the last 2 cylinders? the spot where its supposed to go has a plug in it with is siezed in place. thanks

I never liked the factory switch - never got one to work well. I used a seperate fan controller from Flex-a-lite - has a probe for the radiator, fully adjustable, and works great!

I have heard negative things about having the probe type switch on the radiator itself...

Like what? I was thinking about getting one.

That its best to take it as close to the cylinders as possible because the temp. of the coolant there will differ from the temp. of the coolant at the rad. And because its not 100% accurate taking the reading there, air flowing through the rad. will make it seem cooler then it is .. wont it?

The only other place you can put the coolant temp switch is on the driver's side head between cyl. 1 & 2. Since the pass side head and the driver side head are the exact same, it has been "known/stated" that the factory coolant temp switch has been found on the driver's side. (keep in mind, that others/sources have claimed this!) I would guess that 99.1% are and should be found on passenger side head. If you do use the driver's side, you will be removing the sensor/sender for the dash temp gauge!!! But your ECM should continue to work just fine without it! (Thats MY guess!).

Good Luck.

Yeah, I was going to take out the sensor and put the switch there but i still want to keep the sensor so i need to find another option.
i was kinda hoping there was another spot to put it

Haven't had any problems with mine in 3 years - but I didn't just slap it on either - I spent a few days adjusting the temp the switch would activate and deactivate, with various thermometers and an infrared tester so that I got a setup that works with the radiator probe, knowing that the temps inside the block are warmer than outside. I also put the probe just where the coolant comes into the radiator - thus I'm probing the temp before it has time to be cooled much.

Given that the fan switches always fail, and I haven't had any overheating issues in 3 years, I'll never go back to that stupid switch!

hmm I'll have to buy one and give it a try then, i just wish there was another spot on the block to put it