1997 Ford Taurus Revs up while driving

I think your throttle linkage is sticking a bit and you need a good throttle body cleaning. start by spraying the linkage with some wd 40 and then clean the throttle plate/body

http://www.2carpros.com/how_to/how_to_tune_up.htm

The Linkage isn't sticking. I have sprayed it and it's working fine. Any other suggestions?

CHECK THE LARGE TUBE GOING FROM THE AIR BOX TO THE THROTTLE BODY, FOR A CRACK OR HOLE. THIS NEEDS TO BE AIR TIGHT OR WILL CAUSE A HIGH IDLE TOO, CHECK FOR DIRTY THROTTLE PLATE

I will check this. However it doesn't idle high when just sitting/parked. That's what's confusing. It only happens when driving.

so, as your coming to a stop or turning the corner?

No cracks and is cleaned (used Carb cleaner on TB plate. Ran for few mins. Then drove, still reving up after driven for a few mins. Doesn't do it when Idling though.

It does it when I am driving. Not just while stopping or slow turns around corners. Anytime the car is moving for more than a few miles.

try cleaning th mass airflow sensor too.

I stopped on the way home and bought a new one and replaced it today and still having same issue. Still no codes.

two things, one, check the mapp sensor, two,pcv valve,

I replaced MAP Sensor and the PVC Valve has good suction on it.

ok I will have to ask for some help on this one, im stumped. I will put this in the moderators forum, someone will have your answer, hold tight.

RPM's going high sky while on part throttle-Did you properly seat the TPS if so check the closed idle and wide open throttle voltages as per repair manual specs

Had the TPS replaced, under warranty. Had it checked out after installed. Working properly. Still, while driving car wants to REV up on it's own. Only happends while driving, NOT while idiling.

When its happening is the check engine light coming On or has flashed before prior to this problem?

There is no "Check Engine" light and it doesn't come on at all.

What is the speed range range before it goes high? You sure the transmission is not slipping in/out Hook up a fuel pressure gauge and monitor the fuel pressure before it goes high. BTW at anytime did you disconnect the battery while replacing parts Lets try the relearning process below and also select your type of tranny If it doesn't work-Get the computer tested

I agree, I love your persistence Ras. very nice finding

Ok did that resetting as directed on the last post (Thanks). This happens at speeds above 20 MPH. It is still doing it and the Transmission isn't slipping. I feel like I can't win with this one.....?????

Thanks for all of your help, I'll keep trying :-)

legitimate007 has given you the probabilities and me following it what's missing to cause this problem and still not working-Last place for me is to reflash the computer