Ever checked the Transmission Fluid levels? That can only be checked while the engine is running and at normal operating temperature. The tranny fluid could also be contaminated and need flushing - be sure to change the transmission filter, too.
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At times the odometer will stop working, then it will shift hard. 1994 Dodge Grand Caravan
Check on the bottom side of the transmission for a plug that may have came unplugged. It will make it shift really hard if it is unplugged.
A bad transmission gear can cause your 1999 Nissan frontier to shift hard. Low transmission fluid can also cause the transmission to shift hard.
The transmission may shift hard due to it beginning to fail. However, it may also be due to low transmission fluid.
The most common reason for an automobile transmission to shift hard is low transmission fluid. Make sure the transmission fluid is at the appropriate level.
A hard shift isn't always hard on a transmission. When a transmission shifts soft, it has to slip clutches and bands which causes the friction material to wear out faster. But if this concerns you, have the transmission vacuum modulator valve and vacuum line inspected as this controls the shift firmness.
The primary cause of a transmission to experience hard shifting is low fluid. Fluid is the life of a transmission and operates most of its functions.
Possibly low fluid.
Consult a Local Transmission Shop
A bad transmission.
why does the transmission slip or shift hard on a gs Lexus 300 2001