my Honda Pilot Third Generation (2016-present) transmission slips when shifting what’s the issue

Honda Pilot Third Generation (2016-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

581 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 Pilot (2016-present). 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 battery before working on electrical systems.
•Allow engine to cool before opening the transmission pan.

Symptoms

•Transmission slips between gears
•Delayed engagement when shifting from park to drive or reverse
•Engine RPMs increase without corresponding vehicle acceleration
•Check engine light may be illuminated
•Unusual noises (grinding or whining) during shifting
•Fluid leaks under the vehicle

Diagnostic Steps

1
Scan the vehicle's onboard computer with an OBD-II scanner to check for any stored error codes.
2
Inspect the transmission fluid level and condition (look for burnt smell or dark color).
3
Check for any visible leaks around the transmission pan and seals.
4
Test the transmission fluid pressure using a pressure gauge.
5
Inspect the transmission control module (TCM) for any signs of malfunction.
6
Verify the operation of the throttle position sensor (TPS) and other related sensors.

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
•Fluid pump
•Electrical contact cleaner
•Wire brush

Parts Required

•Honda ATF DW-1 transmission fluid
•Transmission filter (if applicable)
•Transmission pan gasket

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Diagnostic Steps

1
Scan the vehicle's onboard computer with an OBD-II scanner to check for any stored error codes.
2
Inspect the transmission fluid level and condition (look for burnt smell or dark color).
3
Check for any visible leaks around the transmission pan and seals.
4
Test the transmission fluid pressure using a pressure gauge.
5
Inspect the transmission control module (TCM) for any signs of malfunction.
6
Verify the operation of the throttle position sensor (TPS) and other related sensors.

Solution

1. Preparation

Gather all necessary tools and parts.
Park the vehicle on a level surface, engage the parking brake, and disconnect the battery to ensure safety.

2. Check and Replace Transmission Fluid

Sub-steps:
1. Remove the transmission fluid dipstick and check the fluid level.
2. If low, add the manufacturer-recommended transmission fluid (typically Honda ATF DW-1).
3. If fluid is dirty or burnt, drain the transmission fluid by removing the drain plug.
4. Replace with fresh fluid, ensuring to refill to the appropriate level indicated on the dipstick.
Tools Required:
- Socket set
- Fluid pump (for refilling)

3. Inspect and Replace Transmission Filter (if applicable)

Sub-steps:
1. Remove the transmission pan by loosening the mounting bolts.
2. Carefully detach the pan and clean the mating surfaces.
3. Replace the transmission filter.
4. Reinstall the transmission pan with a new gasket and torque bolts to specifications (typically 12-15 ft-lbs).
Tools Required:
- Torque wrench
- Gasket scraper

4. Check and Repair Electrical Connections

Sub-steps:
1. Inspect the wiring harness connected to the TCM and transmission solenoids for damage.
2. Clean any corroded connectors using electrical contact cleaner.
3. Reconnect any loose connections securely.
Tools Required:
- Electrical contact cleaner
- Wire brush (if needed)

5. Reconnect Battery and Test Drive

Sub-steps:
1. Reconnect the battery terminals.
2. Start the vehicle and check for any warning lights.
3. Take the vehicle for a test drive to ensure smooth shifting.
Safety Warnings:
- Ensure that the vehicle is in a safe location when re-engaging the battery and during the test drive.