Stumped on high idle mod
Thread Starter
|
Senior User
Joined: Apr 2006
Posts: 148
Likes: 0
Stumped on high idle mod
'04 6.0 Excursion. I've found the power wire, but am having trouble with finding the lt blu/yel wire. So far I've found red, wht, and blu uncapped wires that are approx 18ga, and yel and wht/red capped wires that are approx 20ga, and a grn/yel 20ga wire that is connected to my remote start to what the manual says should be the tach sense. I'm 99% sure I'm in the right place, but can't find that stupid lt blu/yel wire.
Postmaster
Joined: Mar 2007
Posts: 2,612
Likes: 2
From: Dunwoody, GA
Uncapped wires? There should be 4 capped wires that are the pass-through wires. Black, Red, White, Blue. If you've found the pass through wires, the light blue/yellow wire is located with them in the same wire loom. Maybe they didn't include this option on the Excursion? Or do you have a manual tranny?
Super Moderator
Joined: Jul 2004
Posts: 21,113
Likes: 3,939
From: Ohio
High idle mod allows you to elevate the engine speed with a flip of the switch. Here is a link to explain the location and what you are looking for. High Idle Mod
Thread Starter
|
Senior User
Joined: Apr 2006
Posts: 148
Likes: 0
Trending Topics
Fleet Mechanic
Joined: Nov 2004
Posts: 1,427
Likes: 10
From: Templeton, Massachussetts
Originally Posted by npccpartsman
They want to be able to flip a switch and high idle to prevent wet stacking during extended idle periods. There's a mod in the tech section for it.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 6 Best Deals Available on New Fords & Lincolns Right Now
Brett Foote
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Verdad Gallardo
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
Tuned
Joined: Mar 2007
Posts: 365
Likes: 0
From: Alberta, Canada
daddgonemadd:
This mod is not plug and play on the X like it is on the super duties. Ford never included the wiring from the PCM because they never intended the X to have a PTO.
The PCM is capable of the function, the wire just isn't there, here's a thread that has info/links to what you need to do to make it work for an X.
https://www.ford-trucks.com/forums/467182-pcm-harness-pars-request.html
Another possibility is to look into the availability of a AIC unit; they just plug in and let you set your idle speed to whatever you desire.
Good luck.
This mod is not plug and play on the X like it is on the super duties. Ford never included the wiring from the PCM because they never intended the X to have a PTO.
The PCM is capable of the function, the wire just isn't there, here's a thread that has info/links to what you need to do to make it work for an X.
https://www.ford-trucks.com/forums/467182-pcm-harness-pars-request.html
Another possibility is to look into the availability of a AIC unit; they just plug in and let you set your idle speed to whatever you desire.
Good luck.
Fleet Mechanic
Joined: Nov 2004
Posts: 1,427
Likes: 10
From: Templeton, Massachussetts
Originally Posted by 04Xcursion
daddgonemadd:
This mod is not plug and play on the X like it is on the super duties. Ford never included the wiring from the PCM because they never intended the X to have a PTO.
The PCM is capable of the function, the wire just isn't there, here's a thread that has info/links to what you need to do to make it work for an X.
https://www.ford-trucks.com/forums/467182-pcm-harness-pars-request.html
Another possibility is to look into the availability of a AIC unit; they just plug in and let you set your idle speed to whatever you desire.
Good luck.
This mod is not plug and play on the X like it is on the super duties. Ford never included the wiring from the PCM because they never intended the X to have a PTO.
The PCM is capable of the function, the wire just isn't there, here's a thread that has info/links to what you need to do to make it work for an X.
https://www.ford-trucks.com/forums/467182-pcm-harness-pars-request.html
Another possibility is to look into the availability of a AIC unit; they just plug in and let you set your idle speed to whatever you desire.
Good luck.
Tuned
Joined: Mar 2007
Posts: 365
Likes: 0
From: Alberta, Canada
Originally Posted by 18vtx00
hard to find something that was never installed, so it must have an empty cavity in the pcm molex?? yeah i have never seen a dump body on a excursion..
The X would be pretty funny looking with a dump box
It still surprises me that the option wasn't there, I've seen quite a few Xs used as fire/rescue or command vehicles etc and with all the lights going and other accessories I'm sure those guys could make good use of the high idle.
Thread Starter
|
Senior User
Joined: Apr 2006
Posts: 148
Likes: 0
Thanks for the help everyone. That is why I asked here. I will let everyone know the results when I get around to it. I don't understand why Ford would go through the effort to change the wiring on an EX seeing as they re so similar to the trucks.
Fleet Mechanic
Joined: Nov 2004
Posts: 1,427
Likes: 10
From: Templeton, Massachussetts
Originally Posted by 04Xcursion
That is correct; pin 12 on the PCM harness is empty, no pin was ever installed in it. To do this mod you either have to scavenge a PCM harness and remove pin 12 or procure some pins from Tyco and install pin 12 and the wire in the harness on the X.
The X would be pretty funny looking with a dump box
It still surprises me that the option wasn't there, I've seen quite a few Xs used as fire/rescue or command vehicles etc and with all the lights going and other accessories I'm sure those guys could make good use of the high idle.
The X would be pretty funny looking with a dump box
It still surprises me that the option wasn't there, I've seen quite a few Xs used as fire/rescue or command vehicles etc and with all the lights going and other accessories I'm sure those guys could make good use of the high idle.
Elder User
Joined: Feb 2003
Posts: 648
Likes: 1
I installed 12v to pin 12 to create high idle on mine. It works. Tyco makes the PCM connector, but Yazaki makes the terminals. They'll send you samples if you contact them. You need to drill into the connector to create a pass-thru for the wire. Hotmelt glue will secure the terminal in place.
I currentl have it wired to the P brake, but I'm gonna move it to a switch. I don't always want the high idle when I apply the brake.
https://www.ford-trucks.com/forums/4...highlight=SEIC
I currentl have it wired to the P brake, but I'm gonna move it to a switch. I don't always want the high idle when I apply the brake.
https://www.ford-trucks.com/forums/4...highlight=SEIC