why is my Genesis G70 jerking when shifting gears

Genesis G70 1st Gen (2018-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

514 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix transmission jerking issues in Genesis G70. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Transmission

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before opening or servicing the transmission.

Symptoms

•Jerking or lurching sensation during gear shifts
•Delayed or harsh shifting between gears
•Unusual noises during shifting (clunking or grinding)
•Check engine light illuminated
•Reduced acceleration or power
•Fluid leaks under the vehicle

Diagnostic Steps

1
Scan the vehicle’s onboard diagnostic system using an OBD-II scanner to check for any error codes.
2
Inspect the transmission fluid level and condition; look for any signs of contamination or burning smell.
3
Check for any visible leaks around the transmission and fluid lines.
4
Verify the operation of the transmission control module (TCM) and its connections.
5
Test drive the vehicle to replicate the jerking issue while monitoring RPM and speed.
6
Inspect the motor and transmission mounts for any signs of wear or damage.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•OBD-II scanner
•Socket set
•Transmission fluid pump
•Funnel
•Drain pan
•Jack and jack stands

Parts Required

•Transmission fluid (manufacturer-recommended type)
•Transmission filter (if applicable)
•Transmission pan gasket
•Transmission mounts (if needed)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Scan the vehicle’s onboard diagnostic system using an OBD-II scanner to check for any error codes.
2
Inspect the transmission fluid level and condition; look for any signs of contamination or burning smell.
3
Check for any visible leaks around the transmission and fluid lines.
4
Verify the operation of the transmission control module (TCM) and its connections.
5
Test drive the vehicle to replicate the jerking issue while monitoring RPM and speed.
6
Inspect the motor and transmission mounts for any signs of wear or damage.

Solution

1. Preparation

Gather necessary tools and parts.
Park the vehicle on a level surface and engage the parking brake.
Disconnect the negative battery terminal to prevent electrical shorts.

2. Check and Replace Transmission Fluid

Tools Required: Transmission fluid pump, socket set, funnel, drain pan.
Remove the transmission pan using a socket set.
Drain the old fluid into the drain pan.
Inspect the pan for metal shavings or debris that could indicate internal damage.
Replace the filter if applicable.
Reinstall the pan with a new gasket and torque to manufacturer specifications.
Fill the transmission with new, manufacturer-recommended fluid through the dipstick tube using a funnel.

3. Inspect and Replace Transmission Mounts (if necessary)

Tools Required: Jack and jack stands, socket set.
Raise the vehicle securely on jack stands.
Remove the bolts securing the transmission mounts and inspect for any cracks or deterioration.
If damaged, replace with new mounts and torque to specifications.

4. Reconnect Battery and Test Drive

Reconnect the negative battery terminal.
Start the vehicle and allow it to warm up.
Test drive the vehicle to ensure smooth shifting without jerking.