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Ford's Advance Trac RSC

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Anyone know anything abouts Ford's Advance Trac RSC? Just purchased a used E350 12 passenger van with 5.4 gas motor. Had the Action Van Suspension 6" lift installed before I took delivery not knowing that the owner's manual states not to alter suspension, steering or tires as for it will adversely effect the Advance Trac RSC. Now when I turn corners the system icon on the dash starts to flash and I hear a grinding noise in the front end.

Does anyone know where the sensors are located for said system?

Will upgrading the front sway bar help in anyway?

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take it back to stock, youll probably loose ABS if you mod it

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Return the suspension to stock or see if your local Ford dealer is willing to turn off the option electronically. May be a liability issue to do so, also you may assume some liabilty for altering a safety item on the vehicle..Read more about the system below..:)

http://www.ford.com/innovation/automotive-technology/developing-better-ideas/advancetrac-rsc/

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take it back to stock, youll probably loose ABS if you mod it

Back to stock is NOT what I want to do. ABS is not effected by the lift, only the Advance Trac system.

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Return the suspension to stock or see if your local Ford dealer is willing to turn off the option electronically. May be a liability issue to do so, also you may assume some liabilty for altering a safety item on the vehicle..Read more about the system below..:)

http://www.ford.com/innovation/automotive-technology/developing-better-ideas/advancetrac-rsc/

One Ford dealer told me that they don't even want to look at it as for they can't do anything. Electronically disable will not happen at the dealership.

My thoughts:

Being that I raised the center of gravity of the van, it is throwing off the tilt sensor. Thinking that finding it and then placing in a lower position my solve the problem.....

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Back to stock is NOT what I want to do. ABS is not effected by the lift, only the Advance Trac system.

Ohhh, but it is.

The Advance Trac system is tied into the ABS. The system uses sensors to detect a "tilt" and works with the ABS system and applies braking to one or more wheels to cease or prevent more "tilt" form occurring. The grinding you are hearing is brakes being applied.

Good luck finding a dealer to disable it-the liability is HUGE, and after Ford's debacle of barrel rolling Exploder's, I'm not seeing them being very cool with this idea-this system was intended to prevent just such an accident.

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Ohhh, but it is.

The Advance Trac system is tied into the ABS. The system uses sensors to detect a "tilt" and works with the ABS system and applies braking to one or more wheels to cease or prevent more "tilt" form occurring. The grinding you are hearing is brakes being applied.

Good luck finding a dealer to disable it-the liability is HUGE, and after Ford's debacle of barrel rolling Exploder's, I'm not seeing them being very cool with this idea-this system was intended to prevent just such an accident.

True, the ABS is part of the Advance Trac system, but that is not the problem.

Not looking for a dealer to disable the system, just looking for the sensor location on the van.

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Theres many things that are inputs to the advance trac system. Using the 4 wheel speed sensors and steering wheel sensor, the system calculates the drivers intended path.

Using the lateral acceleromoter, roll rate, and yaw sensor it determines actual path. It will correct by applying brakes to individual wheels or reducing power etc.

Longitudinal accerelrometers are used on 4x4 vehicles to determine if the vehicle is moving. The wheels are mechanically linked, and a situation could arise that if one wheel locked, the other three will lock and this could be interpreted as a stopped vehicle, which would be bad.

Regardless, all of the sensors are in the same place, the senson cluster, and its location is of no value to you. It must be EXACTLY where it was. There was some expeditions that came from the factory with slightly bent floor pans and ford could not figure out what the problem with the advance trac system was and had to buy the vehicles back. Visually you couldnt tell it was bent, but it was enough to wack out the readings. So you would have to get the sensor cluster EXACTLY where it was and not just really really really close, and it has to be made of metal and grounded because the cluster grounds through its mounting bolts.

Your going to want this system functioning, it is probly one of the most awesome things you can experience. You'll be crusing down an icy freeway at 70 mph while everyone else is at a crawl. Turn the system off by the button and prepare for a serious pucker ride.

Returning to stock is the ONLY way your going to fix it

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Theres many things that are inputs to the advance trac system. Using the 4 wheel speed sensors and steering wheel sensor, the system calculates the drivers intended path.

Using the lateral acceleromoter, roll rate, and yaw sensor it determines actual path. It will correct by applying brakes to individual wheels or reducing power etc.

Longitudinal accerelrometers are used on 4x4 vehicles to determine if the vehicle is moving. The wheels are mechanically linked, and a situation could arise that if one wheel locked, the other three will lock and this could be interpreted as a stopped vehicle, which would be bad.

Regardless, all of the sensors are in the same place, the senson cluster, and its location is of no value to you. It must be EXACTLY where it was. There was some expeditions that came from the factory with slightly bent floor pans and ford could not figure out what the problem with the advance trac system was and had to buy the vehicles back. Visually you couldnt tell it was bent, but it was enough to wack out the readings. So you would have to get the sensor cluster EXACTLY where it was and not just really really really close, and it has to be made of metal and grounded because the cluster grounds through its mounting bolts.

Your going to want this system functioning, it is probly one of the most awesome things you can experience. You'll be crusing down an icy freeway at 70 mph while everyone else is at a crawl. Turn the system off by the button and prepare for a serious pucker ride.

Returning to stock is the ONLY way your going to fix it

What is a yaw sensor? What does it do?

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Think yaw like a helicopter. Looking from above, put a needle right through the center. The needle is now the pivot. Yaw is when pivoting on the center point how much the tail of the heli trys to move towards the front, or in other words thinking of our vehicle, the back of the car sliding out and trying to pass the front. The vehicle can sense the back sliding out, even ever so slightly and correct the situation for the driver without him ever knowing except maybe a blink of the light. No one can drive a car as well and react as fast as a computer

Does that make sense?

YAW.GIF

http://www.nasm.si.edu/exhibitions/GAL109/NEWHTF/YAW.HTM

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Think yaw like a helicopter. Looking from above, put a needle right through the center. The needle is now the pivot. Yaw is when pivoting on the center point how much the tail of the heli trys to move towards the front, or in other words thinking of our vehicle, the back of the car sliding out and trying to pass the front. The vehicle can sense the back sliding out, even ever so slightly and correct the situation for the driver without him ever knowing except maybe a blink of the light. No one can drive a car as well and react as fast as a computer

Does that make sense?

YAW.GIF

http://www.nasm.si.edu/exhibitions/GAL109/NEWHTF/YAW.HTM

Yes, that makes sense. Thanks

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the sensor your looking for is called Stability Control Sensor Cluster, it is under the passenger seat on the floorboard. so its already as low is you can get it. Also it IS part of the ABS brake system and its not a good idea to mess with or disable any part of it. Ford spend millions of dollars developing that system. You best bet is to return it to stock. And if you really think you need a 6in lift (IMO you dont) then trade it in on a van without RSC.

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As requested:

Wheels and tires to come after and if I get past this Advance Trac issue.

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the sensor your looking for is called Stability Control Sensor Cluster, it is under the passenger seat on the floorboard. so its already as low is you can get it. Also it IS part of the ABS brake system and its not a good idea to mess with or disable any part of it. Ford spend millions of dollars developing that system. You best bet is to return it to stock. And if you really think you need a 6in lift (IMO you dont) then trade it in on a van without RSC.

Thanks for the info on the location of the sensor.

Ford spent too much on this system (millions?) for it not to have a learning curve of the owner's driving habits as for some of drive a little harder than others. Too bad it does not work like your fuel management system and reteach itself when you make changes to your exhaust and air intake.

All in all it sounds like a great system and it may just do some good. For now, i will try using the disable button on the dash.

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Thanks for the info on the location of the sensor.

Ford spent too much on this system (millions?) for it not to have a learning curve of the owner's driving habits as for some of drive a little harder than others. Too bad it does not work like your fuel management system and reteach itself when you make changes to your exhaust and air intake.

All in all it sounds like a great system and it may just do some good. For now, i will try using the disable button on the dash.

Actually, it wasn't intended to "learn" the drivers habits, but to make up for those with poor habits (those who think a large passenger van or SUV should corner, handle and react like a Taurus does.

You changed the center of gravity of the van (moved it up higher) with the lift and now when you corner, the system thinks you're approaching a roll over situation much faster (which you are) and it's trying to correct for it.

There really is no way for it to have a "learning curve", it's like ABS-it either senses a problem or it doesn't.

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