Honda Civic 9th Generation (2012-2015) transmission jerks when shifting gears what's wrong

Honda Civic 9th Generation (2012-2015)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

558 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 in Honda Civic 2012-2015. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Transmission

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before beginning work on the transmission.
•Ensure the vehicle is on a flat surface and securely supported.
•Allow the engine and transmission to cool before starting the repair.

Symptoms

•Jerking or harsh shifting between gears
•Slipping out of gear unexpectedly
•Delayed engagement when shifting from park to drive
•Unusual noises (grinding or whining) during shifting
•Fluid leaks under the vehicle
•Illuminated check engine light or transmission warning light

Diagnostic Steps

1
Scan the vehicle’s OBD-II system for any error codes related to the transmission.
2
Check the transmission fluid level and condition; look for signs of contamination or burning.
3
Inspect the transmission fluid for proper color and smell (should be reddish and not burnt).
4
Examine the transmission mounts for wear or damage.
5
Test the throttle position sensor (TPS) for proper operation and voltage output.
6
Check for any visible leaks or damaged seals in the transmission system.

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
•Fluid catch pan
•Funnel
•Multimeter
•Jack and jack stands

Parts Required

•Transmission filter
•Transmission fluid (Honda ATF DW-1)
•Gasket or RTV sealant (if needed)
•Throttle position sensor (if replacement is necessary)

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Diagnostic Steps

1
Scan the vehicle’s OBD-II system for any error codes related to the transmission.
2
Check the transmission fluid level and condition; look for signs of contamination or burning.
3
Inspect the transmission fluid for proper color and smell (should be reddish and not burnt).
4
Examine the transmission mounts for wear or damage.
5
Test the throttle position sensor (TPS) for proper operation and voltage output.
6
Check for any visible leaks or damaged seals in the transmission system.

Solution

1. Preparation

Tools Required: OBD-II scanner, socket set, fluid catch pan, funnel, multimeter, jack and jack stands.
Safety Warnings: Disconnect the battery before beginning work on the transmission. Ensure the vehicle is on a flat surface and securely supported.

2. Change Transmission Fluid

Drain Old Fluid:
- Place a fluid catch pan under the transmission pan.
- Remove the transmission pan bolts using a socket wrench.
- Carefully lower the pan to drain the fluid fully.
Replace Filter:
- Remove the old transmission filter from the transmission.
- Clean the filter mounting area and install the new filter, ensuring it is seated properly.
Reinstall Pan:
- Clean the old gasket material from the transmission pan and mating surface.
- Apply a new gasket or RTV sealant if required.
- Reinstall the transmission pan and torque the bolts to the manufacturer’s specifications (typically 12-16 ft-lbs).
Refill Transmission Fluid:
- Using a funnel, refill the transmission with the correct type and amount of new transmission fluid (Honda ATF DW-1 recommended).

3. Inspect and Replace Components

Check Transmission Mounts:
- Inspect the transmission mounts for cracks or excessive wear.
- Replace any damaged mounts with new ones.
Test and Replace Throttle Position Sensor (if necessary):
- Use a multimeter to check the voltage output of the throttle position sensor while the throttle is operated.
- If the readings are outside the specified range, replace the TPS.