SEIC
Hotshot
Joined: Aug 2006
Posts: 17,398
Likes: 317
From: Whittier, CA
Make sure your parking brake is set. Transmission must be in PARK. Foot must not be on the brake, which also means the brake switch must be operating properly.
You might also try switching over to the BCP wire, instead of SEIC.
I see from your profile that you have an '05. So you used this guide, right?:
http://www.thedieselstop.com/content...%20High%20Idle
It is different than the '04 and earlier trucks.
This might help too:
https://www.fleet.ford.com/truckbbas/non-html/Q108.pdf
You might also try switching over to the BCP wire, instead of SEIC.
I see from your profile that you have an '05. So you used this guide, right?:
http://www.thedieselstop.com/content...%20High%20Idle
It is different than the '04 and earlier trucks.
This might help too:
https://www.fleet.ford.com/truckbbas/non-html/Q108.pdf
Elder User
Joined: Jan 2004
Posts: 853
Likes: 0
From: northern,california
https://www.ford-trucks.com/forums/3...ml#post2327760
Since I have a manual trans there is a different color wire in the bundle that I had to use. If you check through this thread it will describe what wire is needed for the high idle. Make sure the e brake switch works. Put the truck in gear with the e brake on and a dinger should go off warning you that the brake is still on.
Since I have a manual trans there is a different color wire in the bundle that I had to use. If you check through this thread it will describe what wire is needed for the high idle. Make sure the e brake switch works. Put the truck in gear with the e brake on and a dinger should go off warning you that the brake is still on.
Hotshot
Joined: Aug 2006
Posts: 17,398
Likes: 317
From: Whittier, CA
Obviously the parking brake switch and the service brake switch must be functioning properly or this might not work.
Do you have a manual tranny, or automatic?
Thread Starter
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Senior User
Joined: Feb 2005
Posts: 468
Likes: 9
From: Alabama
I Have a manual. Parking brake light works properly as do brake lights.
Thank Y'all for your replies!
Thank Y'all for your replies!
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Lead Driver
Joined: Sep 2007
Posts: 8,180
Likes: 669
From: Scio, OR
Read this PDF file carefully...
https://www.fleet.ford.com/truckbbas/non-html/Q108.pdf
It indicates to me, under the resistor chart on page 8, that the manual transmission REQUIRES a 43K ohm resistor. The diesel engine diagram on page 10 shows that resistor going between the PTO_VREF (orange/red) and PTO_RPM (orange/yellow) wires.
Another option would be to use the Battery Charge Protect wire (purple/lt green) instead of the PTO wire (Orange).
https://www.fleet.ford.com/truckbbas/non-html/Q108.pdf
It indicates to me, under the resistor chart on page 8, that the manual transmission REQUIRES a 43K ohm resistor. The diesel engine diagram on page 10 shows that resistor going between the PTO_VREF (orange/red) and PTO_RPM (orange/yellow) wires.
Another option would be to use the Battery Charge Protect wire (purple/lt green) instead of the PTO wire (Orange).
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Hotshot
Joined: Aug 2006
Posts: 17,398
Likes: 317
From: Whittier, CA
And, unless you are actually going to use a PTO device, the BCP is a better way to go. Why lock up the TC for no reason?
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