Ok, this may be a bit complicated, but pay attention - you can do this. Once completed, one UpFitter switch will raise the idle to 1200 rpm (6.0L).

Project Cost: $47,560 (including truck)
Project Time: 4-6 weeks (includes truck ordering, building, & delivery time)

You will need the following:
Optional:
Directions:

1. Remove all rings, watches, & bracelets (a must when doing electronics)
2. Remove the drivers side access panel (below the steering wheel)
3. Using the 11mm socket & ratchet, remove the 4 bolts which hold the fuse panel. Gently, pull the fuse box through the opening and leave it hang.
4. Look for the UpFitter wire bundle as noted in this photo:
   
5. Choose which switch you want to use. I used Aux-4 as it is one of the 10 amp circuits and only a signal voltage is required. Here is a list of wires:
   Aux-1 Circuit No 1936 wire color: Orange/Lt. Green [30amp]
   Aux-2 Circuit No 1933 wire color: Orange [30amp]
   Aux-3 Circuit No 1934 wire color: Orange/Yellow [10amp]
   Aux-4 Circuit No 1935 wire color: Orange/Lt. Blue [10amp]
   
6. Pull the black end off the chosen wire and strip off 1/4" of the insulation.
7. Crimp one end of one butt connector to this wire.
8. Prepare the 6" wire by stripping 1/4" of the insulation off both ends.
9. Crimp one end of the 6" wire to the open end of the butt connector used above.
10. Crimp another butt connector to the other end of the 6" wire.
11. Locate the top of the parking brake pedal (approximately 6" below the AUX wires).
12. Locate the SEIC/CASC wire bundle (about 12 wires with black ends) as noted in this photo:
    
13. Locate the solid ORANGE wire. There are many orange wires in this bundle, but most have a color tracer. You must use the SOLID orange wire.
14. Pull the black end off the SOLID ORANGE wire and strip off 1/4" of the insulation.
15. Insert the SOLID ORANGE wire into the open end of the butt connector attached to the 6" hookup wire.
16. This completes the electrical portion of this project. You need to replace the fuse box and access cover.

Testing

All the following are required to enable high idle:
Start your engine! Flip the UpFitter switch. The engine will idle up to 1200 rpm. If any of the required items changes state, the engine will go to its normal idle speed. If the item state is changed back to the required state, the idle will return to 1200 within 3 seconds.

There are many options available (higher rpm, gas engine information, E-series, etc) and all are noted in this document I noted in my first post in this thread (thanks Y-Guy).

Happy Hi-Idling!

Jim

 

Very cool, nice job, and great photos

 

Is there anyone who has completed this "mod" for the 05? I just purchased the AIC for my 04 and love it! (even tho the box is slightly oversized)

 

I'm confused. This sounds like a simple way to elevate the idle. Why does the aftermarket make a unit like the Throttle Commander ($149 U.S.) to do the same that $1 worth of parts can do?

 

Is the wiring and procedure tha same for the 04 trucks? Thanks for the great pics and info.

 

Also, where does the upfitter switch come into play? Maybe I am blind but I don't see where to wire it in? Thanks.

 

Do you know if it works for an 03'????

 

Thank you very much Jim that is exactly what I was looking for.

 

To answer all the ['04/'03/etc] questions: this is new for '05. Pre '05, you have to buy the big ugly AIC box.

Duncan

 

The UpFitter wires shown come from the circuit breakers (mounted behind the main glove box) which are connected to the optional UpFitter dashboard switches. The wires are just provided from Ford to make final connections.

If you have an '05 without UpFitter switches, but do have the SEIC/CASC wire bundle (I'm guessing they may be stock on all trucks - gas or diesel), all you need is a switched 12v source (your own switch).

HTH,

Jim

 

Well, I'm guessing the profit on the device you mention may be $148...

I don't know exactly what that device does, but there are other options such as different idle levels, feedback circuits which could control features, etc. For me, 6" of wire and two butt connectors work perfectly.

Jim

 

Does this work for a manual as well as a automatic transmission? On page 8 (a resistor chart) of the Q-108 service bulletin it says a manual trans. needs a resistor.

 

It appears that you need a 43K Ohm 5% 1/4 watt resister to idle at 1200 rpm. Radio Shack doesn't appear to have that exact size (on their website), but here's what I would do (it will cost you $2 total and you can do 5 trucks...).

Get Catalog #: 271-1342 - 47K ohm 1/4W 5% Carbon Film Resistor pk/5
and Catalog #: 271-1339 - 22K ohm 1/4W 5% Carbon Film Resistor pk/5

Try the 47K first, it may work just fine. It may not get to 1200 rpm. If not, use two 22Ks in series for 44K. That should give you very close to the required 43K. A 22K single will give you 1320 rpm.

Now, if you have a Fry's Electronic around, you might be able to get the exact size.

HTH,

Jim

 

Thanks for the info Jim. I ordered my truck last week and expect it around Christmas. We'll give it a try then.

Gary

 

Well this explains why it does not work on my truck. Does the resistor go in line from the orange wire to the upfitter switch? Thanks