new automatic 4x4
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Upgrades on the 2012 F-150’s drivetrain include replacing last year’s electronic shift-on-the-fly with a two-speed automatic 4x4 system for Lariat, King Ranch and Platinum trim levels. The system still offers four high and four low modes, but now also offers a 4x4 auto mode. If the truck senses a loss of traction, it immediately transfers torque to the front wheels, making the system more seamless for the customer.
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Joined: Jul 2002
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From: Statesville, NC
Sounds like the same system they have had on the Expedition or several years. Some had Auto, $ high, 4lO. oTHERS HAD 2x, aUTO, 4hIGH, and 4 lo. Doubt it would be retrofitted without significant work, it uses a variable coupling center differential, similar to a limited slip rear. So this diff would have to be fit, along with the electronics to control.
Personally I would just as soon have a 2 high instead of full time auto.
Personally I would just as soon have a 2 high instead of full time auto.
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From: Illinois
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Joined: Jun 2011
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From: Cedar Falls, IA
I want all 4 options 2hi, 4hi, 4lo, and AWD (auto), I just like the auto engage feature for when you are at a slippery intersection. Seems like the intersections are terrible around here after snow/ice, while most of the roadways can be fairly dry and clean. I wish it was just a simple switch and maybe a computer hookup at the dealer.
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From: Flower Mound, Tx
chances are like everything else nowadays it is going to be computer controlled, which means there will likely be programming to be done and a new transfer case.
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Joined: Jul 2002
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From: Statesville, NC
I would Believe it is a version of intelligent 4WD.
Control Trac IIControl Trac II was a Ford all wheel drive system based on a viscous coupling unit. The viscous coupling replaced the typical center differential used in four-wheel drive applications. The system worked normally in front wheel drive but in addition to the front wheels being driven, a shaft is powered that runs to the viscous coupling in the rear. If the front wheels slip, the viscous coupling progressively releases torque to the rear wheels. Additionally, the Control Trac II system provided a mechanical lock of four-wheel drive though there was no low range provided by the system.
Control Trac II has since been replaced by the "Intelligent 4WD" system, a similar system with the viscous coupling replaced by a computer controlled clutch. The Intelligent 4WD system functionally acts similar to the Control Trac II system, with the front wheels being driven predominately with torque being sent to the rear wheels only as conditions dictate. The Intelligent 4WD system also lacks the mechanical lock provided by Control Trac II.
Control Trac IIControl Trac II was a Ford all wheel drive system based on a viscous coupling unit. The viscous coupling replaced the typical center differential used in four-wheel drive applications. The system worked normally in front wheel drive but in addition to the front wheels being driven, a shaft is powered that runs to the viscous coupling in the rear. If the front wheels slip, the viscous coupling progressively releases torque to the rear wheels. Additionally, the Control Trac II system provided a mechanical lock of four-wheel drive though there was no low range provided by the system.
Control Trac II has since been replaced by the "Intelligent 4WD" system, a similar system with the viscous coupling replaced by a computer controlled clutch. The Intelligent 4WD system functionally acts similar to the Control Trac II system, with the front wheels being driven predominately with torque being sent to the rear wheels only as conditions dictate. The Intelligent 4WD system also lacks the mechanical lock provided by Control Trac II.