Cooling temp sensor wiring

[Dahoopd]

Hello,

I hope someone can help. Its been some years since I had my last 5.0 bird (91) and installed an aluminum Rad/Fans. I have a 93 5.0 and I dont remember how I wired it so the fans came on when the car hit the correct temp. Im installing a 3 core rad with two 14" fans and a 180 stat. I seem to remember I connected the hot wire to pin 14 the high speed fan wire but since my old laptop crashed, I lost all of my mod notes.

I have two relays and all of the wiring, I just dont remeber where to connect them to. Any help would be greatly appreciated as I need to get the car running to take it an hour a way and store it in my brothers garage. Thanks for the help.

 

[White Lincoln]

You might want to get a wiring service manual from eBay. I see several for a 93 T-Bird.

Here is one:

1993 FORD THUNDERBIRD MERCURY COUGAR ELECTRICAL VACUUM SERVICE MANUAL WIRING | eBay

FACTORY ELECTRICAL & VACUUM TROUBLESHOOTING MANUAL. SYSTEM WIRING DIAGRAMS. THIS IS THE MANUAL YOU NEED IF YOU HAVE ONE OF THESE VEHICLES. Manual is in MOSTLY GOOD condition. could be costly.

www.ebay.com

Mine has been invaluable for wiring issues like yours.

 

[dDUBb]

From the 93 FSM .. I don't have the EVTM for this year. The aftermarket fan kits usually have their own temp sending unit / sensors to correspond with fan operation ( switches that close at predetermined Temps) - not sure how you originally wired your setup.

 

[White Lincoln]

That is really nice of you to get a pic of the wiring diagram dDUBb.

 

[dDUBb]

That is really nice of you to get a pic of the wiring diagram dDUBb.

It helps me feel like I'm working on a Tbird - since I parked mine in 2017.

 

[Grog6]

That does show, pin 14 is not the trigger for the fan.

Post a pic of what you have. You will need :
battery
ground
Fan low(relay trigger)
fan hi.(relay trigger)

With two fans, I'd running one on low, both on hi, and see if it works ok.

 

[dDUBb]

There is no factory "trigger" - the 5.0 didn't come with an electric fan.