Burned out high speed fan connection

[thirwin]

On my 07 GT I have experienced intermittent overheating due to fan connection problem. Took it apart and found burned fuse connector in box under the fuse panel. It’s the high speed fan relay that is effected. Anyone know if Ford sells replacement box or do I need to go to a junk yard?

 

[lwarrior1016]

My car did this also. I removed the trigger signals (high and low speed trigger from the computer) from the fuse box and used them to trigger a Leash electronics dual 70 amp relay.

Basically re-wired the fan circuit outside the stock fuse box.

 

[thirwin]

Man, that’s above my pay grade. . I don’t have experience with anything but replacing stock stuff, but I guess you didn’t either until you did.

 

[crjackson]

My car did this also. I removed the trigger signals (high and low speed trigger from the computer) from the fuse box and used them to trigger a Leash electronics dual 70 amp relay.

Basically re-wired the fan circuit outside the stock fuse box.

Great solution, you should do a write up, or make/sell a kit for DIY.

 

[Autokyrios]

Possibly a bad fuse (or incorrect one). Fan might need some attention, too.

As for the fuse box, if the connection is good, it's probably fine. Just clean up the plastic.
For replacing the fuse connection/box parts, I didn't find anything in a quick search, but that doesn't mean it's a no. Though it'll probably be a short call, you might want to ring Ford and see if they have a repair kit. Going through some junkyards might be your solution, though.

 

[lwarrior1016]

Man, that’s above my pay grade. . I don’t have experience with anything but replacing stock stuff, but I guess you didn’t either until you did.

It’s not a very difficult task, I could try to get together step by step directions, but I am out of town this week. It would probably be this weekend before I could do it. You’d have to get the relay setup ordered too. Leash can take a while sometimes

 

[lwarrior1016]

Dual 70 Amp Relay Module

Dual 70 Amp Relay Module. Features: 2 industrial 70 amp heavy duty relays. 1/4" main battery input stud, 2 #10 outputs studs and inputs use female fork crimp terminals. Uses heavy duty J-case automotive fuses. Can be setup for positive or negative triggering. Has led's to diagnose operation...

www.leashelectronics.com

 

[MrBhp]

A lot of us have moved the load out of the box. It is the only way to prevent future issues. We've had several posts about it. If you're not feeling qualified to do it, maybe you have a friend. A co-worker. Find a retired mechanic. Find a mechanic who does side work. If I was still in Texas I could hook you up.

 

[GlassTop09]

Dual 70 Amp Relay Module

Dual 70 Amp Relay Module. Features: 2 industrial 70 amp heavy duty relays. 1/4" main battery input stud, 2 #10 outputs studs and inputs use female fork crimp terminals. Uses heavy duty J-case automotive fuses. Can be setup for positive or negative triggering. Has led's to diagnose operation...

www.leashelectronics.com

Thanks for posting this link!

 

[golkhl]

When you replace the fan, I recommend the upgraded GT500 unit, a noticeable improvement over stock GT. I have one on my 08 Supercharged Bullit.

 

[Autokyrios]

I second the fan. Bought and installed when I upgraded my radiator. Good unit, fits perfectly.

 

[Red-Candy-Metallic]

I would echo the fan suggestions. I can't speak to the 2006 GT install, but I replaced the stock fan in my 2012 GT and my 2014 GT with this unit and it certainly seems to work as advertised.

 

[lwarrior1016]

This is my relay setup. I’ll have to take the fuse box out to find wire locations I cut.

Picture 1: the large blue and green are going TO the fan. High and low power.

Picture 2: large red wire goes to the battery stud on the fuse box, it needs to be a large gauge. Orange loops battery power back to the relay. The small blue and green are the ground triggers from the computer to turn the relay on like stock.

Picture 3: Again, the ground triggers blue and green from the computer. The brown wire is for my EPAS rack.

 

[brasil]

@ Iwarrior

thank you for your write-up. I will buy such a Relais Combo, and make this important upgrade

Greetings Juergen

 

[thirwin]

Thanks for all the advice fellas. I have some ideas to consider. I’d rather not have this problem crop up again in the middle of West Texas or some other inopportune spot, but the simple fix is more my speed. I really like the clean look of the two new relays though.

 

[rocknrod]

I have the FPP fan upgrade and the Wire Everything kit.
They now make a HI-Amp Resistor Pack Delete Harness.

 

[EBABlacknChrome]

I have the FPP fan upgrade and the Wire Everything kit.
They now make a HI-Amp Resistor Pack Delete Harness.

As I read through this I wondered why no one had mentioned Casey. He makes top notch wiring solutions for our cars.

 

[lwarrior1016]

He sure does, but he doesn’t fix the melted connector in the fuse box.

 

[thirwin]

I have one more question about the GT 500 fan. Do y'all know if the resistors are beefed up on it? I've heard that the resistors on the stock GT fan are also a weak spot. I'm getting ready to order the dual relay set up from Leash Electronics. Still thinking about replacing the fan with the GT 500 fan. Y'all have moved me beyond being scared to undertake this project, which is way beyond anything I've ever attempted.

 

[lwarrior1016]

Apparently the resistor needs to be changed as well, to have a bulletproof setup. I haven’t done that yet, I’ve still got the stock resistor and a stock replacement fan.

Whenever you’re ready, or I’ll try this weekend. I will pull my fuse box and get pictures of what wires I cut.