Cooling System Upgrade/Replacement
Thread Starter
|
Postmaster
Joined: Sep 2016
Posts: 3,941
Likes: 240
From: Texas
As long as it doesn't leak and keeps cool I love it. I guess I will have to keep the top polished up now! 
Mountain Pass
Joined: Jan 2008
Posts: 211
Likes: 0
From: North West Arkansas
sorry for the hijack
Can someone point me to some resources for the AC fixes that were mentioned in this thread? pretty please?
- 7.3 Fan Clutch
http://www.bulletproofdiesel.com/Fan..._p/6502213.htm
https://www.ford-trucks.com/forums/1...an-clutch.html
- high idle upfitter switch
- ball valve water cutoff inline on heater hoses
thanks,
mike
Logistics Pro
Joined: Aug 2007
Posts: 3,974
Likes: 18
From: Millersburg, OH
Don't know about the clutch.
The AC I did in my 2000. I don't remember where the link is anymore but you can probably find it in the SD sub forum. If I remember right it was a Ford Range shut off valve. You run a vacuum line to it from the white cab HVAC vacuum line. The valve gets spliced into the heater core in/out lines. Pretty straight forward.
EDIT: You may also want to check your air gap on the A/C clutch. https://www.ford-trucks.com/forums/1...l#post13187218
Thread Starter
|
Postmaster
Joined: Sep 2016
Posts: 3,941
Likes: 240
From: Texas
The high idle on your 2005 is easy as there is a wire already there in the OBD-II port bundle that you wire to a switch.
The fan clutch mod switches from the 6.0 computer controlled clutch to a temperature controlled wireless clutch from a 1997 7.3 Powerstroke. I bought a Murray clutch. I bought mine from O'Reilly's so I get a lifetime warranty. You will also need a 6.0 to 7.3 fan clutch adapter nut from BulletProofDiesel. It adapts the 6.0 water pump threads to the 7.3 fan clutch threads. You will get much better cooling with it over the 6.0 clutch that kicks in at odd times and not over 45mph. I drove it hard today and the truck never ran cooler. I did not do the heater core shutoff valve because I don't know the correct procedure.
The fan clutch mod switches from the 6.0 computer controlled clutch to a temperature controlled wireless clutch from a 1997 7.3 Powerstroke. I bought a Murray clutch. I bought mine from O'Reilly's so I get a lifetime warranty. You will also need a 6.0 to 7.3 fan clutch adapter nut from BulletProofDiesel. It adapts the 6.0 water pump threads to the 7.3 fan clutch threads. You will get much better cooling with it over the 6.0 clutch that kicks in at odd times and not over 45mph. I drove it hard today and the truck never ran cooler. I did not do the heater core shutoff valve because I don't know the correct procedure.
Laughing Gas
Joined: Jan 2007
Posts: 883
Likes: 5
https://www.lowes.com/pd/Apollo-3-4-...itting/3851791 will look like this,goes in heater hose to stop water unless you can test your current vacuum operated shutoff to make sure no water going thru.
Thread Starter
|
Postmaster
Joined: Sep 2016
Posts: 3,941
Likes: 240
From: Texas
https://www.lowes.com/pd/Apollo-3-4-...itting/3851791 will look like this,goes in heater hose to stop water unless you can test your current vacuum operated shutoff to make sure no water going thru.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Thread Starter
|
Postmaster
Joined: Sep 2016
Posts: 3,941
Likes: 240
From: Texas
Never ran so cool...I am stoked to see how she pulls the boat Monday. I was running almost 210 ECT at 70mph when it was 79 degrees outside. The ECT/EOT delta levels off at 5-6 degrees, it was not leveled out in the photo. Much better!
Mountain Pass
Joined: Jan 2008
Posts: 211
Likes: 0
From: North West Arkansas
Monster-4, SmackDaddy, Wedge542 - Thank You.
I have confirmed based on behavior that my truck is already handling the high-idle scenarios appropriately so I think i'm OK there.
The heater valve cut-off is interesting and I may look further into that.
I'm not sure I know enough about the clutch switch to know if that is a contributing factor for me. Knee jerk reaction tells me I need to look somewhere else.
I'll start a new thread for any A/C issues that I run into.
mike
<Hijack complete>
I have confirmed based on behavior that my truck is already handling the high-idle scenarios appropriately so I think i'm OK there.
The heater valve cut-off is interesting and I may look further into that.
I'm not sure I know enough about the clutch switch to know if that is a contributing factor for me. Knee jerk reaction tells me I need to look somewhere else.
I'll start a new thread for any A/C issues that I run into.
mike
<Hijack complete>
Mountain Pass
Joined: Sep 2012
Posts: 170
Likes: 0
From: DFW, TX
Hello. Coincidentally, I'm doing this on my truck straight away.
Here's the parts I already have, but now I realize I don't have everything I need, also things I didn't know/think about.
I have the Mishimoto rad, ALL radiator and heater hoses, motocraft parts on everything other than the Radiator, degas bottle (okay, that's not cuz it wasn't available on amazon), water pump, thermostat.
What I DONT have, are the fumoto valves which I didn't think about, or the heater core. Also, the tubing off the valves. I didn't know anything about the 7.3 fan clutch upgrade, but I do have my high idle mod installed. How much and how difficult is the clutch upgrade? I already bought the 6.0 clutch... but maybe it's worth it to upgrade?
The thing is I'm on a time crunch, so if I can't get these parts locally or quick, it may just have to be a future upgrade.
But what are the part numbers or links to the tutorials on those upgrades? Fumoto valve part numbers specific to our trucks?
I also have a leaking A/C compressor (which is whining anyway) and leaking power steering pump. Should I just go ahead and replace all those why it's opened up?
Here's the parts I already have, but now I realize I don't have everything I need, also things I didn't know/think about.
I have the Mishimoto rad, ALL radiator and heater hoses, motocraft parts on everything other than the Radiator, degas bottle (okay, that's not cuz it wasn't available on amazon), water pump, thermostat.
What I DONT have, are the fumoto valves which I didn't think about, or the heater core. Also, the tubing off the valves. I didn't know anything about the 7.3 fan clutch upgrade, but I do have my high idle mod installed. How much and how difficult is the clutch upgrade? I already bought the 6.0 clutch... but maybe it's worth it to upgrade?
The thing is I'm on a time crunch, so if I can't get these parts locally or quick, it may just have to be a future upgrade.
But what are the part numbers or links to the tutorials on those upgrades? Fumoto valve part numbers specific to our trucks?
I also have a leaking A/C compressor (which is whining anyway) and leaking power steering pump. Should I just go ahead and replace all those why it's opened up?
Thread
Thread Starter
Forum
Replies
Last Post