The Neutral safety switch is located on the back of the automatic transmission. it is quite simple to replace. It is probably easier to replace from under the vehicle, but it is accessable from the top if your vehicle is not equipped with ABS.
Depending on the vehicle, a faulty VSS (Vehicle Speed Sensor) could affect the automatic transmission shift points.
I believe it is called the speed sensor.
it may b the transmission sensor
may just be a transmission sensor - $20 part - start there...
Auto? Low or dirty transmission fluid? Plugged filter? Bad transmission pump? When my husband's car wouldn't shift (it was an automatic) it was his crankshaft sensor. It ran fine after that.
A more accurate description of the problem along with if its an automatic or manual transmission is needed.
A 2000 Jeep automatic that is not shifting correctly after it gets hot might have something wrong with the speed sensor that is located in the transmission. The speed sensor tells the transmission what gear to shift into at certain speeds.
try the shift sensor on the side of tranny
There is a sensor on the cam shaft that may be effecting things.
There are a number of conditions that can cause an automatic transmission to slip into protective mode. To prevent damage, if a transmission sensor detects low pressure, slipping or any of a number of conditions, it causes full pressure to go to the shift circuits, making the transmissions shift hard. The only way to determine what's causing the hard shifts is to have a computer diagnostic scan.
The Neutral safety switch is located on the back of the automatic transmission. it is quite simple to replace. It is probably easier to replace from under the vehicle, but it is accessable from the top if your vehicle is not equipped with ABS.
if its a manual transmission its your pressure plate if its an automatic it could be the disc attached to your flywheel