Auto coming out of overdrive at 60mph

[mbaston]

My auto is coming out of overdrive at about 60mph. It doesn't matter if I am accelerating or deaccelerating. Other than that, it shifts/works fine. Any ideas?

[oljeeptek]

Originally Posted by mbaston

My auto is coming out of overdrive at about 60mph. It doesn't matter if I am accelerating or deaccelerating. Other than that, it shifts/works fine. Any ideas?

It could be normal if its only when you are moving your foot. They'll disengage accel for power, and on decel for mileage.

It also could be a tps issue.

[mbaston]

Originally Posted by oljeeptek

It could be normal if its only when you are moving your foot. They'll disengage accel for power, and on decel for mileage.

It also could be a tps issue.

never move the foot. Just around 60 +/- 2 mph it comes out. Any speed higher or lower it goes back into overdrive. I can be accelerating, deaccelerating, coasting or ?, it doesn't matter. It does not matter there the throttle is.

[tdenkler]

Originally Posted by mbaston

never move the foot. Just around 60 +/- 2 mph it comes out. Any speed higher or lower it goes back into overdrive. I can be accelerating, deaccelerating, coasting or ?, it doesn't matter. It does not matter there the throttle is.

It's the "Speed Sensor" that screws into Transmission housing tailshaft. A $20 at a dealer. Just put threadseal on threads and unscrew ol, screw new on. It has a plactic "tip" that rotates in a counter. The end gets slightest little burr on end and computer reads as "downshift" command

[mbaston]

Originally Posted by tdenkler

It's the "Speed Sensor" that screws into Transmission housing tailshaft. A $20 at a dealer. Just put threadseal on threads and unscrew ol, screw new on. It has a plactic "tip" that rotates in a counter. The end gets slightest little burr on end and computer reads as "downshift" command

Thank you... will get the part next time home. Thanks again!

[studious03]

remember how you took it out because it must be aligned perfectly. I had mine in wrong and my check engine light came on and it didn't shift out of second!(bought the car like that so took me forever to find out what was wrong!)