Honda Accord 9th Generation (2013-2017) transmission slipping when driving what is wrong

Honda Accord Eleventh Generation (2023-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

582 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 Honda Accord 9th Generation (2013-2017). 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 working on electrical systems.
•Allow the engine to cool before working on the transmission to avoid burns.

Symptoms

•Check engine light illuminated
•Engine RPMs increase without corresponding vehicle speed
•Harsh or delayed shifting between gears
•Unusual noises from the transmission (grinding or whining)
•Fluid leaks under the vehicle
•Poor acceleration

Diagnostic Steps

1
Scan the vehicle's onboard computer with an OBD-II scanner for any error codes related to the transmission.
2
Inspect the transmission fluid level and condition; check for contamination or burnt smell.
3
Examine the transmission filter for clogs or blockages.
4
Check for any visible leaks around the transmission seals and gaskets.
5
Inspect the wiring and connections to the transmission control module for damage or corrosion.
6
Test drive the vehicle to replicate the slipping issue while monitoring transmission performance.

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
•Drain pan
•Funnel
•Multimeter
•Seal puller
•Torque wrench

Parts Required

•Transmission fluid (Honda ATF DW-1)
•Transmission filter
•Transmission pan gasket
•Seals for transmission

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Diagnostic Steps

1
Scan the vehicle's onboard computer with an OBD-II scanner for any error codes related to the transmission.
2
Inspect the transmission fluid level and condition; check for contamination or burnt smell.
3
Examine the transmission filter for clogs or blockages.
4
Check for any visible leaks around the transmission seals and gaskets.
5
Inspect the wiring and connections to the transmission control module for damage or corrosion.
6
Test drive the vehicle to replicate the slipping issue while monitoring transmission performance.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is off.
Disconnect the battery to prevent electrical issues during repairs.

2. Fluid Change

Tools Required: Socket set, drain pan, funnel, rags.
Sub-steps:
1. Place a drain pan under the transmission pan.
2. Remove the transmission pan bolts using a socket wrench.
3. Carefully lower the pan and allow fluid to drain completely.
4. Replace the transmission filter if applicable.
5. Clean the transmission pan and replace the gasket.
6. Reattach the transmission pan and torque bolts to the manufacturer's specifications (typically 7-10 ft-lbs).

3. Inspect and Repair Seals

Tools Required: Torque wrench, seal puller, RTV sealant.
Sub-steps:
1. Identify and locate any seals around the transmission that may be leaking.
2. Use a seal puller to remove damaged seals carefully.
3. Apply RTV sealant as needed and install new seals.
4. Allow sealant to cure as per the manufacturer's instructions.

4. Electrical Inspection

Tools Required: Multimeter, wire brush.
Sub-steps:
1. Inspect the wiring and connectors to the transmission control module.
2. Clean any corrosion using a wire brush.
3. Use a multimeter to test for continuity and voltage at the connectors.
4. Repair or replace damaged wiring as necessary.

5. Refill Transmission Fluid

Tools Required: Funnel, transmission fluid (Honda ATF DW-1).
Sub-steps:
1. Refill the transmission with new fluid through the dipstick tube using a funnel.
2. Start the engine and let it idle while cycling through the gears to circulate fluid.
3. Check fluid level with the engine running and add more fluid if necessary.