If this is on a Ford Escort, it sounds like you have some sensors gone; because of the complexity of modern-day transmissions, I will not recommend that you try to repair it yourself. Take your car to a professional.
transmission down shift after fuild change
There are several things that can cause your Honda Accord station wagon automatic transmission not to shift down. The most common cause is low transmission fluid.
the two sensors on a transmission communicate with the computer to the engine and tells the transmission when to shift up or down....
2000 Dodge Ram Van need help my transmission down shifts and won't upshift
Type your answer here... My Allison transmission will only down shift, whats wrong with it?
Possibly weak u-joints or transmission mounts
Failing transmission
1 down 5 up
This is normal in a sequential transmission motorcycles use. The transmission needs a source of power to move the gears in place, if you shift more than one or two gears down, you will have to disengage the clutch to continue shifting down. You should plan your stops accordingly and shift down while stopping so that you can shift to first just about when you are rolling to a stop.
there is no fuse that makes the transmission shift the transmission shifts on cylinoids and rpms
The shift solenoids are located in the solenoid pack on the FRONT of the transmission. looking down at the transmission with the hood open, it will be close to the RADIATOR. you have to replace the whole pack.
Four speed transmission is : one down, three up.