Car Jerks When Transmission Shifts
If your car jerks when it shifts gears, it could be a sign of a problem with your transmission. The transmission is responsible for transferring power from the engine to the wheels, and if it is not working properly, it can cause the car to jerk or hesitate when it shifts gears.
There are a number of different things that can cause a transmission to jerk when it shifts gears, including:
- Low fluid levels
- Dirty fluid
- Worn or damaged gears
- Faulty sensors
- Electrical problems
Low fluid levels
One of the most common causes of transmission jerking is low fluid levels. When the fluid level is low, the transmission cannot properly lubricate and cool its components, which can lead to wear and tear. This can cause the transmission to shift gears erratically, which can result in jerking.
To check the fluid level, you will need to locate the transmission dipstick. The dipstick is usually located near the back of the engine, and it will have a red or orange handle. Pull out the dipstick and wipe it clean with a rag. Then, reinsert the dipstick and pull it out again. The fluid level should be between the two marks on the dipstick.
If the fluid level is low, you will need to add more fluid. You can purchase transmission fluid at most auto parts stores. Be sure to check the owner’s manual for your car to determine what type of fluid is required.
Dirty fluid
Dirty fluid can also cause the transmission to jerk when it shifts gears. When the fluid is dirty, it can contain particles that can clog the transmission’s filters and valves. This can restrict the flow of fluid, which can lead to jerking and hesitation when shifting gears.
To clean the transmission fluid, you will need to have the transmission serviced by a qualified mechanic. The mechanic will drain the old fluid and replace it with new fluid. They will also clean the transmission’s filters and valves.
Worn or damaged gears
Worn or damaged gears can also cause the transmission to jerk when it shifts gears. When the gears are worn or damaged, they cannot properly engage with each other, which can cause the transmission to slip or hesitate when shifting gears.
To repair worn or damaged gears, you will need to have the transmission rebuilt or replaced by a qualified mechanic. This is a major repair, and it can be expensive.
Faulty sensors
Faulty sensors can also cause the transmission to jerk when it shifts gears. The transmission’s sensors are responsible for sending information about the transmission’s speed and position to the car’s computer. If a sensor is faulty, it can send incorrect information to the computer, which can cause the computer to shift the transmission at the wrong time or in the wrong gear.
To diagnose a faulty sensor, you will need to have the car’s computer scanned for trouble codes. The trouble codes will indicate which sensor is faulty.
Electrical problems
Electrical problems can also cause the transmission to jerk when it shifts gears. The transmission’s electrical system is responsible for powering the transmission’s solenoids and valves. If there is a problem with the electrical system, the solenoids and valves may not work properly, which can cause the transmission to shift gears erratically.
To diagnose an electrical problem, you will need to have the car’s electrical system inspected by a qualified mechanic.
Conclusion
If your car jerks when it shifts gears, it is important to have it diagnosed and repaired by a qualified mechanic. The problem could be caused by a number of different things, and it is important to have it fixed as soon as possible to prevent further damage to the transmission.
