Why Does the Car Jerk When Starting After Heavy Rain?

1 Answers
VanCayden
07/29/25 9:30pm
After heavy rain, the car may jerk when starting due to water entering the transmission. Damaged Solenoid Valve: A damaged solenoid valve is a major cause of jerking. Jerking can be sporadic or occur at fixed intervals. Sporadic jerking happens unpredictably, while fixed jerking occurs at specific RPMs, during gear shifts (e.g., from 2nd to 3rd gear), or at certain speeds. Transmission Overheating: Overheating can degrade the quality and frictional properties of automatic transmission fluid, increasing friction and wear. This leads to transmission noise and the formation of sludge (contaminants or debris) inside the transmission (e.g., in the valve body), resulting in jerking or harsh shifting.
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