Cold Case w/ Dual Fans and temp gauge install

[kwcook]

Currently the fan and radiator set up is functioning properly and kicking on at 160 degrees. The fan is hooked up to the idiot light temp switch sensor. My question is where can I hook up my aftermarket temp gauge? The gauge was previously hooked up where the new fans are hooked into. Do they make a switch that can handle both items installed into one switch?

 

[Aaron1456]

Are you using the 84-85 ecm or have you upgraded to 86-87 ecm?

 

[kwcook]

Are you using the 84-85 ecm or have you upgraded to 86-87 ecm?

86/87

 

[Aaron1456]

I would run the fans from the ecm and put temp sender for gauge in place of the dummy light switch.

 

[kwcook]

That's how I had my old set up ran. the cold case radiator and dual fan set up said to.hook it up.this way. I have the old wiring set up from my previous single fan set up.

 

[Aaron1456]

Same result. I would just use the ecm output to energize your new relay. Otherwise you'd have to tap a hole or something for yet a 3rd temp sensor.