my Honda Accord 9th Generation (2013-2017) transmission slips when I accelerate what’s wrong

Honda Accord Eleventh Generation (2023-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

577 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 slipping issues in 2013-2017 Honda Accord. 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

•Always allow the engine to cool before working on the transmission.
•Disconnect the battery before performing electrical inspections or repairs.

Symptoms

•Transmission slips or hesitates during acceleration
•Check engine light illuminated
•Unusual noises (grinding or whining) during gear shifts
•Delayed engagement when shifting from park to drive or reverse
•Poor fuel economy
•Fluid leaks under the vehicle

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for transmission-related trouble codes.
2
Inspect the transmission fluid level and condition (color and smell).
3
Check for fluid leaks around the transmission and under the vehicle.
4
Inspect the transmission filter for clogs or blockage.
5
Test the throttle position sensor (TPS) for proper voltage output.
6
Examine the transmission control module (TCM) for any faults.

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
•Drain pan
•Jack and jack stands
•Transmission fluid pump

Parts Required

•Honda ATF DW-1 transmission fluid
•Transmission filter
•Transmission pan gasket

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for transmission-related trouble codes.
2
Inspect the transmission fluid level and condition (color and smell).
3
Check for fluid leaks around the transmission and under the vehicle.
4
Inspect the transmission filter for clogs or blockage.
5
Test the throttle position sensor (TPS) for proper voltage output.
6
Examine the transmission control module (TCM) for any faults.

Solution

1. Preparation

Gather tools and parts required for the repair.
Ensure the vehicle is on a level surface and secure it with wheel chocks.
Disconnect the negative battery terminal to prevent electrical shorts.

2. Check Transmission Fluid

Sub-steps:
- Remove the transmission dipstick and wipe it clean.
- Reinsert the dipstick and remove it again to check fluid level.
- If low, add the manufacturer-recommended transmission fluid (Honda ATF DW-1).
- If the fluid is dark or burnt-smelling, proceed to change the fluid and filter.

3. Change Transmission Fluid and Filter

Sub-steps:
- Raise the vehicle using a jack and secure it with jack stands.
- Place a drain pan under the transmission pan and remove the pan bolts.
- Allow the old fluid to completely drain.
- Remove the old transmission filter and replace it with a new one.
- Clean the transmission pan and replace the pan gasket.
- Reinstall the transmission pan and tighten bolts to the manufacturer’s torque specifications (usually around 10-15 ft-lbs).
- Refill the transmission with new fluid through the dipstick tube.

4. Inspect and Repair Electrical Connections

Sub-steps:
- Locate the TCM and inspect all electrical connections for corrosion or loose wires.
- Clean connectors with electrical contact cleaner and ensure tight connections.
- If necessary, replace any damaged wiring or connectors.

5. Reconnect Battery and Test

Reconnect the negative battery terminal.
Start the engine and allow it to reach operating temperature.
Shift through all gears to ensure proper engagement and check for slipping.