On my 2001 Olds Intrigue, when I push the foot pedal down all the way to get into the passing gear, the car acts like it has a govenor on it. When it gets to 3500 RPM or higher, it justs lacks the power to go. I was tlod that the catalytic converter was probably getting plugged, thus bogging it down. Had it replaced, wasn't the solution. Then next I changed the fuel filter, and the wasn't the problem. What's my next choice.

confusion here
you are saying that with the foot of the clutch pedal you can shift gears ok but when you put your foot on the clutch pedal , the car moves
it that a correct interpretation of your statement
if so it is not possible for a clutch to act as you state

A/T
The modern A/T has 4shift methods.
Foot (passing) called detent TV kick down cable.
the shift lever.
the Vacuum modulator (load, = hills)
and tail shaft RPM (speed)
so seems like the MOD on the A/T is bad.

my 07 Tc does this also not sure why, but it helps me brake, could be that it is coming out of passing gear, and going back to last gear

Sounds like you have a shift control problem, either in the transmission or the ECM controlling it. Check for trouble codes (DTCs) with a good code reader.

For this problem, i suggest you to go through this help links.Click the link below to go through the troubleshooting procedure :----Car Idles rough and quits when gas pedal is pressed less? http://technoanswers.blogspot.in/2012/01/1999-ford-f-150-idles-rough-and-quits.html-----------Car only starts when gas pedal is pressed? http://technoanswers.blogspot.com/2012/01/car-only-starts-when-gas-pedal-is.html
-----------Car won't start without hitting the gas pedal? http://schematicsdiagram.blogspot.com/2011/12/car-wont-start-without-hitting-gas.html
---------Car dies when gas pedal is pressed? http://schematicsdiagram.blogspot.com/2011/12/car-dies-when-gas-pedal-is-pressed.html
------------Pushing on the gas pedal, but the car slows down? Gas pedal to the floor and the car slows down? http://technoanswers.blogspot.in/2012/02/pushing-on-gas-pedal-but-car-slows-down.html
-----------This will help.Thanks.

You will have to remove the DOOR trim and Lubricate the internal cables liberally with Penetrating oil. Intermittently to let the oil seep down the cable. Lube the window lower guides as well.
Regards,DT

My car does the same thing. I wondered that myself, I don't think that's what it is though, I don't think you have an issue with the transmission. Your car has TWO check engine lights, and with the Alero--if there is an issue with the transmission one of the lights will come on. I am not 100% positive of this, but I had a 1999 Bravada (Olds) and it did do that when I had a tranny issue.

I notice when I drive my 2001 Alero my right leg gets SORE from pushing the pedal so hard. I think it is age, not the transmission.

READ YOUR SERVICE MANUALS. I don't get why people ignore them, honestly they have a wealth of information in them...could have saved a lot of people lots of money when people started claiming their car wouldn't start when it was a security feature that is listed in the manual that came with the book.

MAY HAVE A VACUUM LEAK OR A BAD SENSOR

sounds like a faulty sender unit not passing the right voltage which is causing the gauge to read high

they are under the big silver plastic cover on each side of engine