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Old Dec 20, 2020 | 02:08 PM
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2021 7.3

Hey guys been reading the forums a long time,just never posted or had the need to.
The question I have , I just bought a new 2021 f350 with the 7.3 gasser.
I’m a construction supervisor and sit in my truck often for hours on end. I want to add AIC mod (high idle) to this truck/engine , is it possible to do so?
I searched the forums and didn’t see anything that could help.
Is what I’m asking possible? And if so can someone please point me to a how-to?
thanks guys, I really enjoy the conversations on this forum.
 
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Old Dec 20, 2020 | 02:23 PM
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I believe the high idle function is only for diesels. Also I don't think its necessary since gasoline engines warm up and should stay warm idling on there own. But that is my knowledge and opinion on the matter.
 
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Old Dec 20, 2020 | 02:25 PM
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Thanks for the info, it’s not really for winter use. I was thinking more for A/C, as a higher idle the A/C gets colder.
 
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Old Dec 20, 2020 | 04:16 PM
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Why not wait and see if you have a problem?
 
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Old Dec 20, 2020 | 04:22 PM
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I believe it is possible, can remember exact procedure but it involves going into the pto wires by passenger kick panel and you can use a resistor on a switch to get rpm you want.
Go to fordbbas.com and their is a builder manual for your truck that will tell you how.
https://fordbbas.com/home
 
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Old Dec 20, 2020 | 04:48 PM
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I think you have to have upfitter switches also to hook into PTO wiring with resistor. Video is one YouTube for high idle mod.
 
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Old Dec 20, 2020 | 04:55 PM
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see if this helps..yes, its for a 6.7 but im thinking is should work on the 7.3L

 
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Old Dec 20, 2020 | 05:11 PM
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Look in body builders layout book, pages 117 to 123.
Similiar procedure as diesel but different resister values
 
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Old Dec 20, 2020 | 05:15 PM
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Originally Posted by 2021 7.3
Hey guys been reading the forums a long time,just never posted or had the need to.
The question I have , I just bought a new 2021 f350 with the 7.3 gasser.
I’m a construction supervisor and sit in my truck often for hours on end. I want to add AIC mod (high idle) to this truck/engine , is it possible to do so?
I searched the forums and didn’t see anything that could help.
Is what I’m asking possible? And if so can someone please point me to a how-to?
thanks guys, I really enjoy the conversations on this forum.
Here if you want plug and play and infinite adjustment. All that is required is to swap two wires if used on gas trucks.https://www.dieselpowerproducts.com/...gaAp8tEALw_wcB
 
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Old Dec 20, 2020 | 05:23 PM
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Originally Posted by acadianbob
Why not wait and see if you have a problem?
I have had many Ford trucks, starting from 01 7.3 powrstroke. Each and everyone of them had the same problem.


Thanks for the plug and play link, 100 bucks nice and easy!
 
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Old Dec 20, 2020 | 05:27 PM
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The plug and play is the simplest solution. The high idle function is possible by installing a resistor just like on the 6.7 trucks.
 
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Old Dec 20, 2020 | 09:42 PM
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The Build and Price feature of the Ford.com site lists the "Stationary Elevated Idle Control (SEIC)" under Standard Features, for the 2021 Super duty F350 Lariat with a 7.3.
If I paid for it as a Standard Feature I would hope Ford and the Dealer will honor that.
 
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Old Dec 20, 2020 | 10:24 PM
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Originally Posted by White 99
The Build and Price feature of the Ford.com site lists the "Stationary Elevated Idle Control (SEIC)" under Standard Features, for the 2021 Super duty F350 Lariat with a 7.3.
If I paid for it as a Standard Feature I would hope Ford and the Dealer will honor that.
Pretty sure it has been written like that for years. The functionality is there but it is not completed. Maybe that is so the end user can chose how they want it switched and what rpm. I think Ive read some have had their dealer wire it up at no cost. That will probably depend entirely on your relationship with the service department. I highly doubt mine would do it for free.
 
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Old Dec 21, 2020 | 02:03 PM
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Originally Posted by White 99
The Build and Price feature of the Ford.com site lists the "Stationary Elevated Idle Control (SEIC)" under Standard Features, for the 2021 Super duty F350 Lariat with a 7.3.
If I paid for it as a Standard Feature I would hope Ford and the Dealer will honor that.
This is correct, all trucks are shipped with the SEIC. How you or the final upfitter control and access it is laid out in the body upfit guide.
 
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