Car Jerks After Transmission Fluid Change: Troubleshooting Guide

Car Jerks After Transmission Fluid Change

Welcome to our comprehensive troubleshooting guide on a common issue many car owners face: experiencing jerks or jolts after a transmission fluid change. Changing the transmission fluid is a routine maintenance task that helps ensure the longevity and smooth operation of your vehicle’s transmission.

However, encountering jerking or rough shifting after this seemingly simple procedure can be concerning and frustrating.

This article will explore various causes behind car jerking after a transmission fluid change, demystifying the potential culprits behind this problem.

Join us as we explore the complexities of transmission systems, fluid changes, and the various factors that can contribute to car jerking. By the end of this guide, you’ll be armed with the knowledge and know-how to get your vehicle running smoothly again. Let’s begin the journey to a more comfortable and enjoyable ride!

Table of Contents

Various Causes Behind The Car Jerking After A Transmission Fluid Change

Air Bubbles in the Transmission Fluid

  • During the transmission fluid change, air bubbles may get trapped in the lines, leading to improper fluid flow and erratic shifting. 
  • These air bubbles can cause the transmission to jerk when engaging gears.

Low or Incorrect Transmission Fluid Level

Car mechanic drain automatic transmission fluid
  • Suppose the transmission fluid level is too low or the wrong fluid type was in during the change. 
  • In that case, it can result in insufficient lubrication and hydraulic pressure, causing harsh shifts and jerking.

Transmission Fluid Contamination

  • Suppose the new transmission fluid is with debris, dirt, or old fluid. 
  • In that case, it can adversely affect its performance and lead to jerking during gear changes.

Fluid Overfilling

  • Overfilling the transmission with fluid can create excessive pressure, causing foaming and aerated fluid, which hampers smooth gear engagement and results in jerking.

Inadequate Fluid Flush

  • A partial fluid change without flushing the entire system can leave behind old, degraded fluid, leading to inconsistent transmission performance and jerking.

Faulty Transmission Solenoids

  • The transmission solenoids control the flow of fluid within the transmission. 
  • If any of these solenoids are faulty or clogged, it can lead to improper gear shifts and jerking.

Torque Converter Issues

  • A faulty torque converter can cause inconsistent fluid coupling, jerking, and shuddering during acceleration or deceleration.

Solutions To Diagnose The Issue

  • Check the transmission fluid level count with the engine running and operating temperature. Ensure the liquid level falls within the recommended range.
  • If the fluid appears dark, smells burnt, or contains debris, it might be contaminated, and you may need to perform a transmission fluid flush.
  • Look for wet spots or puddles, which may indicate a leak in the transmission system that requires attention.
  • Double-check that the correct transmission fluid type was in during the fluid change.
  • If you add transmission fluid, ensure you have enough to fill it. Overfilling can cause foaming and lead to jerking.
  • Check for any fault codes related to transmission solenoids using an OBD-II scanner.

FAQs Of Car Jerks After Transmission Fluid Change

Is it normal for a car to jerk after a transmission fluid change?

No, it is not normal for a car to jerk after a transmission fluid change. A smooth and seamless shift can be visible after changing the transmission fluid. Jerking or jolting sensations indicate a potential issue that requires attention.

Can a Worn-Out Transmission Oil Filter be an issue for it?

Yes, a worn-out transmission oil filter can potentially cause car jerks after a transmission fluid change. The transmission oil filter plays a crucial role in keeping the transmission fluid clean by filtering out debris, particles, and contaminants that can accumulate over time.

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