how to fix Honda Accord 9th Generation (2013-2017) transmission jerks during downshift

Honda Accord Eleventh Generation (2023-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

535 words

Problem Statement

Learn how to diagnose and fix transmission jerks during downshifts in Honda Accord 9th Generation (2013-2017). Step-by-step guide with tools and tips.

Affected Component

Transmission

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components.
•Allow the engine to cool before opening the transmission system.

Symptoms

•Jerking or harsh shifting when the transmission downshifts
•Delayed engagement when shifting from Drive to Reverse
•Unusual noises during downshifting
•Fluctuating RPMs during gear transitions
•Dashboard warning lights illuminated

Diagnostic Steps

1
Check the transmission fluid level and condition using the dipstick.
2
Scan the vehicle's onboard computer for any transmission-related error codes using an OBD-II scanner.
3
Inspect the transmission fluid for contamination or burnt odor.
4
Verify proper operation of the throttle position sensor (TPS) and vehicle speed sensor (VSS).
5
Conduct a road test to replicate the symptoms and note specific conditions (speed, load) when jerking occurs.

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
•Torque wrench
•Funnel
•Transmission jack

Parts Required

•Transmission fluid (specific to Honda specifications)
•Transmission filter (if applicable)
•Gasket or sealant for transmission pan

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Check the transmission fluid level and condition using the dipstick.
2
Scan the vehicle's onboard computer for any transmission-related error codes using an OBD-II scanner.
3
Inspect the transmission fluid for contamination or burnt odor.
4
Verify proper operation of the throttle position sensor (TPS) and vehicle speed sensor (VSS).
5
Conduct a road test to replicate the symptoms and note specific conditions (speed, load) when jerking occurs.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is on a level surface and safely secured.
Disconnect the negative battery terminal to avoid electrical issues.

2. Check and Replace Transmission Fluid

Tools Required: Socket set, funnel, new transmission fluid (refer to owner's manual for specifications).
Instructions:
1. Locate the transmission dipstick and remove it to check fluid level.
2. If fluid is low or looks dirty, drain the old fluid by removing the drain plug (if applicable) or using a fluid extractor.
3. Replace the drain plug and refill the transmission with the recommended type of fluid using a funnel.
4. Start the engine and let it idle for a few minutes while cycling through the gears to ensure proper fluid circulation.

3. Update Transmission Software

Tools Required: OBD-II scanner with software update capability.
Instructions:
1. Connect the OBD-II scanner to the vehicle's diagnostic port.
2. Follow the manufacturer's instructions to check for any available software updates for the transmission control module (TCM).
3. If updates are available, perform the update as instructed.

4. Inspect Mechanical Components

Tools Required: Socket set, torque wrench, possibly a transmission jack.
Instructions:
1. Remove the transmission pan to inspect for debris or metal shavings that indicate internal wear.
2. Replace the transmission filter if applicable, and ensure seals are replaced.
3. Reinstall the transmission pan and torque the bolts to the manufacturer's specifications.
4. Refill the transmission fluid as previously described.