Kick down the cars shift correctly but no kick down

Most cars with automatic transmissions have a kick down switch that is sometimes mounted on the transmission but activated by the throttle linkage. A good mechanic should be able to correct this quite easily.

double posted. Be patient, give us 24hrs....

sounds like the kick down cable is stretched or out o adjustment. it operates a valve on the driver side of the tranny. when the cable brakes or streches it wont open the valve far enough to allow tranny fluid to pass. i would inspeck the cable at the intake to make sure it was properly conected and down at the tranny. replacement would also correct your down shifting issue.

the kick down cable is for shifting gears high to low. there is no kick down cable on your car. you are looking for the shift linkage

Kick-down setting on transmission is not correctly set it operates off of throttle pressure.

Often the fluid type can do that. If you just had the fluid changed recently, it's likely that the wrong fluid was used (they all have different friction coefficients) If I remember correctly Chrysler makes an additive that will help with harsh shifting as well.
If not a fluid problem, then likely you have a pressure control problem inside the unit that would need to be checked by a shop using gauges. (could be as simple as a "kick-down"cable adjustment to correct)

Ford C6
Verify there is vacuum to modulator, the rubber line tends to break/falloff
Verify the kick-down cable is correct
Verify the linkage is correctly adjusted.
A C6 reads engine vacuum and throttle position to automatically shift

Instead of a cable, most vehicle's speedometers are controlled by a speed sensor at the tail of the transmission. These do go bad and would cause your speedometer to malfunction. They are not like light bulbs which just die, these sensors will kick in and out irregularly.Secondly you have a thin cable that is connected to your throttle in addition to the throttle cable itself. This second cable is for the kick-down of your transmission. It is utilized when you make a sudden pass of another vehicle to shift down one gear. This cable becomes misaligned at times and will, in a sense, become shortened. Try releasing it from the throttle cam and see how your vehicle reacts then. If it shifts correctly than you need a new kick-down cable.

all depends on your load and speed, at full throttel
from rest, should be about 3800-4000rpm, how ever if the kick down cable is not set correctly you may find gears taking long to up shift or kick down coming in to soon.

Check the Transmision kick down cable,,which is attatched to the throttle cable and goes into the transmission,,it may need adjustment.