What Causes Jerking in a Manual Transmission?
1 Answers
Transmission jerking is primarily caused by a dirty transmission valve body. Sudden acceleration or braking followed by acceleration can also easily lead to jerking. Explanation of Jerking Principle: The main reason for transmission jerking is a dirty valve body. A heavily soiled transmission valve body can degrade the quality and frictional properties of the transmission fluid. This increases friction and wear, and sludge can also form inside the transmission, leading to blockages in the valve body and pipelines. As a result, the system cannot properly regulate oil pressure, causing transmission jerking issues. Solutions: Check if the transmission temperature is normal. If not, inspect the transmission cooling system. If the cooling system is functioning properly, proceed with the following checks; reprogram the transmission control unit; replace the transmission fluid—it should be changed at least every 2 years or 40,000 kilometers; inspect the internal valve body for any damage.