I have a 94 Camaro 3.4 ltr v6, single fan. My cooling fan doesnt come on unless I turn on the a/c. It does come on when I disconnect the coolant temp sensor though. The temp gauge will warm to just below the 260 mark and the fan still doesnt come on. Its full of coolant and I have no idea what the problem with it is. I dont know a lot about cars, but if some one could give me some advice I would really appreciate it.

I know a manual fan switch is an option, but Im the type that would prefer to correct the problem if I can.

Also would I potentially mess something up if I allowed the temp sensor to stay unplugged so that my fan would run?

 

that sensor doesnt just run the fans. when u unhook it the computer will go into open loop and performance will suffer. test your sensor and see if its putting out the correct info.
http://shbox.com/1/4th_gen_tech2.html#ect
http://shbox.com/1/4th_gen_tech2.html#cooling

 

Sensor seems to be working properly, any other ideas? Im completely stumped....

Why do these cars have so much fan trouble? Seems to be a common problem.

Also, I was told it may be my coolant fan switch. Can someone tell me where to find it?

 

there is a relay for the fans in the under hood fuse box. try switching with a known working relay. all of them except the abs relay should be the same.