If the 1997 Nissan Altima with an automatic transmission is shifting gears too early, it could be that the shift solenoid for the transmission is faulty. Both the shift solenoid and the speed sensor on the transmission should be checked.
Instead of manually shifting the gears, a synchronizer gear is installed in the transmission, and a computer takes over shifting. Early autoshifts still retained a clutch pedal; current models do not, leaving that to the computer to manage, as well. The only one which has a torque converter is the Allison TC10.
You may feel a jerk in the car when it automatically shifts from one gear to the next; or it may feel like the transmission is 'slipping' or can't catch a gear when accelerating; or it may be difficult to accelerate or drive. All of these are early signs of transmission problems. Transmission problems can be very costly and its worth your time and money to do the recommended maintenance. The first signs of trouble are rough shifting and changing shift points and speeds. You may also have a transmission light for over heating transmission fluid. Take these warning signs seriously.
A sensor has failed, and is reporting the wrong value to the transmission controller. Old transmissions: Probably the vacuum modulator or throttle position sensor. Also check the fluid level. New Transmissions: Output speed sensor, turbine speed sensor, throttle-position sensor, fluid pressure sensor, and sensors on the engine.
Year, make and model would help us help you. 1968 Ford Mustang
NO
it electronically changes the shift points of the transmission. by shifting sooner and not letting the engine rev up so much, will save fuel. unless you drive it like a race car, then it will get the same mileage, and add wear and tear to the engine, because the trans will be shifting before the engine gets in to it's power band, and it will lug the engine, causing early bearing failure.
Loosen the clamp bolts on the cable. If it is shifting down to a lower gear when the throttle is at max it is all right. If it is shifting down too early, lengthen the cable adjustment. If it is shifting down too late or not at all shorten the cable adjustment.
The U.S. cheesemaking industry began shifting westward toward Wisconsin in the early 1900s
Chain since early'90's.
They were manual transmission's Automatics did not really hit the scene until the late 1950s
Cosmic Microwave Background (CMB) Radiation.
Produced by Borg-Worner, it is a 4 speed transmission commonly used in early Ford F series trucks.