awdpath

For the winding road part, front to rear torque vectoring was shown. The rear coupling/RDU does have heat protection according to the 2007 Fusion Workshop Manual. From the Owners Manual, the image of a wrench (Throttle Control/Transmission) " Illuminates when a powertrain or a AWD fault has been detected."

Some/you don't, but I and some do appreciate/demand 'dry' pavement torque vectoring. And I like my 'duped' Ford Fusion AWD/4WD the way it is.

Even though TC ( not Stability Control because it was not available until the release of the 2009 models) was an option for the 2007 FWD models (V6 only?), ABS/TC were standard features incorporated into the AWD system. The AWD's rear end can still get excited with TC on depending on steering angle, throttle input, road condition, etc.

Brake Lock Differential (starting at 0:13) : http://www.youtube.com/watch?v=6moBHxwRVaI

Out-of-norm vibration is a problem and can potentially cost bigger problems !

Your interpretation of your scope's numbers is assumption-based. Zero on your scope implies 100 percent power/torque up front? Is that possible with this AWD/4WD system? And why not 100 percent power/torque to the rear when the steering wheel is relatively centered (if like you said the vehicle would resist turning)? In this case, I am sure the car's computer is quick and smart enough to know that!

Statically, they are similar/same just like the other multi-plate clutch coupling AWD systems like the BMW xDrive, Audi R8, Porsche 911 and Subaru (auto). Dynamically (when moving), they are quite different because of the vehicles' hardware characteristics and their software programs. Someone on this forum or another forum wrote that s/he saw on the shop's laptop diagnostic screen showing the Fusion AWD/4WD system vectoring most of the power/torque to rear on quick and hard acceleration.

'Dry' pavement does not mean it's not slippery. In Canada, the Fusion AWD/4WD was/is never advertised as a 'winter' car. If you don't appreciate the torque vectoring feature based on proven physics principles to improve driving dynamics (that's on demand too), well, you bought the wrong vehicle. The front to rear drive shaft is propel at full speed at all times by the PTU which is connected to the transmission. And '0' does not mean zero torque to the rear. For the Fusion, I have never read or heard of any claim that 100 percent power can be remained on the front axle. Interestingly, I read that the Fusion AWD/4WD can divert up to 100 percent power to the rear axle ( the RDU gear ratio is not the same for the Escape and the Fusion) .

After all the expenses, that's why some of the OEM parts may be compromised!? The last 'reverse engineered' part I bought was made in Mexico (I was surprised it was not from China). Same place of origin as the OEM part, a part that is under constant stress when in use but the OEM decision maker decided that plastic is to be used to make this part. And yes, the 'reverse engineered' part is made of metal and priced at one-third the OEM part.

According to the Customer Information Guide (Warranty and Maintenance, 7F1J-19G218-AB August 2006) : 5000km/3 months interval is for " Special Operating Conditions" 10,000km/6 months interval is for 'normal', 'typical', 'everyday driving' conditions According to the Ford Fusion Owner's Guide 2007 (7E5J-19A321-AB Sept 2006) : Use of synthetic or synthetic blend oil is not mandatory. Engine oil need only meet the requirements of Ford specification WSS-M2C930-A and the API Certification mark.

Two Ford Fusion recalls in Canada (2010 models only): - Brakes (Units Affected: 3) - Seats And Restraints (Units Affected: 1,458 )

You own or used to own a Windstar? Windstar Safety Recall (10S13)

Check for loose electrical contacts.

EMI/RF emitting HID ballast can potentially affect the car's computing processes (especially during programming). Oldguy16, I suggest you take note of the minute details of your driving experiences. For example ... temperatures, throttling positions, load, speeds, RPM, steering angles, electrical accessories, idling/driving time, commonalities, etc. Here is a problem description summary example from TSB 08-24-1: ISSUE: Some 2005-2007 Five Hundred, Montego, and 2006-2008 Fusion, Milan, 2006 Zephyr and 2007-2008 MKZ vehicles equipped with an Aisin automatic transmission may experience shift concerns when the vehicle mileage gets above 20,000 miles (32,200 km). Shifting concerns are generally noticed during passing maneuvers with transmission at temperatures greater than 212 °F (100 °C) operating temperatures. Symptoms may be present during downshift 5-3 at 35 MPH (56 km/h) and/or 4-3 at 20 MPH (32 km/h) with throttle opening at approximately 50% or greater and include: Harsh shift and/or clunk noise Delayed shift and/or perceived slip/engine flare

35W Digital Xenon HID Replacement Spare Ballast [CP84]- Approximately C $14.99 (includes shipping to Canada) from ebay.ca

Ford 6F35 front-wheel-drive, 6-speed automatic transmission: Assembly: Van Dyke Transmission Plant (Sterling Heights, Mich.) Gears: Sharonville Transmission Plant (Sharonville, Ohio) http://media.ford.com/article_display.cfm?article_id=28196 And : GM-Ford 6-speed automatic transmission (Wikipedia)

Like this one

The Fusion/Escape should have no problem making up that ramp with TC on. Jeep's Brake Lock Differential (BLD) in action (basically, ABS working in reverse):

Maybe it's your 'old school' thinking/preference. According to the EPA: 17 City / 24 Hwy (limited 4x4) for your current Escape 14/17 w/4WD (auto) for the SuperCab 4x4 Ranger

And what would that be (note: PTU)? 2wd?

I want it ALL the times! Therefore it is very intelligent to me in that sense. :P

Optimal traction and handling.

What is 'On Demand' in terms of 4WD? I got a feeling my presumptions of what it is - is much broader than yours. Are you serious you want an indicator for 4wd activations like the one for TC !

It does work as advertised and more. It is the 'and more' part that you along with significant number of people online do not appreciate ( at least not worth say $200-$400 per year). The 'slip and grab' reactive 4WD you seem to prefer may save you some gas but will cost you in the form of " spider bites".