Why does my 2018 Toyota Camry make a clunking sound when shifting gears?

Toyota Camry Eighth Generation (2018-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

691 words

Problem Statement

Learn how to diagnose and fix clunking sounds when shifting gears in your 2018 Toyota Camry with our step-by-step guide.

Affected Component

Transmission/Engine Mounts

Estimated Time

2-4 hours

Symptoms

•Clunking or banging noise during gear shifts (especially from P to D or R to D)
•Possible vibration felt during shifting
•Noise may be more pronounced during rapid acceleration or deceleration
•Potential delay in gear engagement

Diagnostic Steps

1
Lift Vehicle: Safely elevate the vehicle with a jack and secure it with jack stands.
2
Inspect Mounts: Examine the transmission and engine mounts for visible signs of wear or damage.
3
Check Driveshaft: Look for any signs of wear or looseness in the driveshaft and universal joints.
4
Locate Transmission Dipstick: Find the transmission dipstick, usually located near the back of the engine bay.
5
Check Fluid Level: Remove the dipstick, wipe it clean, reinsert, and remove again to check fluid level.
6
Inspect Fluid Condition: Look for burnt smell, dark color, or metal particles in the fluid.
7
Use Mechanic’s Stethoscope: Listen for noise coming from the transmission or engine mounts while shifting.
8
Connect OBD-II Scanner: Use an OBD-II scanner to check for any transmission-related trouble codes.

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

•Jack and jack stands
•Socket set
•Torque wrench
•Screwdrivers (flathead and Phillips)
•Transmission fluid dipstick or funnel
•Mechanic's stethoscope (optional)
•OBD-II scanner (optional for checking transmission codes)

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Diagnostic Steps

1
Lift Vehicle: Safely elevate the vehicle with a jack and secure it with jack stands.
2
Inspect Mounts: Examine the transmission and engine mounts for visible signs of wear or damage.
3
Check Driveshaft: Look for any signs of wear or looseness in the driveshaft and universal joints.
4
Locate Transmission Dipstick: Find the transmission dipstick, usually located near the back of the engine bay.
5
Check Fluid Level: Remove the dipstick, wipe it clean, reinsert, and remove again to check fluid level.
6
Inspect Fluid Condition: Look for burnt smell, dark color, or metal particles in the fluid.
7
Use Mechanic’s Stethoscope: Listen for noise coming from the transmission or engine mounts while shifting.
8
Connect OBD-II Scanner: Use an OBD-II scanner to check for any transmission-related trouble codes.

Solution

Problem Diagnosis: Clunking Sound When Shifting Gears in a 2018 Toyota Camry

Possible Causes

Transmission Mount Issues: Worn or damaged transmission mounts can cause excessive movement of the transmission during shifting, leading to clunking noises.
Engine Mount Problems: Similar to transmission mounts, worn engine mounts can allow excess engine movement.
Torque Converter Issues: A malfunctioning torque converter may cause noise during shifts.
Low Transmission Fluid: Low transmission fluid levels can lead to erratic shifting and associated clunking sounds.
Internal Transmission Problems: Worn gears or clutches within the transmission itself.
Driveshaft Issues: Loose or worn driveshaft components can also create noise during shifts.

Tools Required

Jack and jack stands
Socket set
Torque wrench
Screwdrivers (flathead and Phillips)
Transmission fluid dipstick or funnel
Mechanic's stethoscope (optional)
Torque wrench
OBD-II scanner (optional for checking transmission codes)

Step 1: Visual Inspection

Lift Vehicle: Safely elevate the vehicle with a jack and secure it with jack stands.
Inspect Mounts: Examine the transmission and engine mounts for visible signs of wear or damage, such as cracks or excessive rubber deterioration.
Check Driveshaft: Look for any signs of wear or looseness in the driveshaft and universal joints.

Step 2: Fluid Level Check

Locate Transmission Dipstick: Find the transmission dipstick, usually located near the back of the engine bay.
Check Fluid Level: Remove the dipstick, wipe it clean, reinsert, and remove again to check fluid level. Ensure it’s within the recommended range.
Inspect Fluid Condition: Look for burnt smell, dark color, or metal particles in the fluid. If the fluid is low or dirty, it may need to be replaced.

Step 3: Listen for Noises

Use Mechanic’s Stethoscope: If available, use a mechanic's stethoscope to listen for noise coming from the transmission or engine mounts while shifting.
Shift Through Gears: With the vehicle safely elevated, have someone shift through the gears while you listen for any abnormal noises.

Step 4: Check for Diagnostic Codes

Connect OBD-II Scanner: Use an OBD-II scanner to check for any transmission-related trouble codes.
Interpret Codes: Note any codes that may indicate transmission malfunctions.

Repair Instructions

Step 1: Replace Worn Transmission/Engine Mounts

Remove Old Mounts:
- Support the transmission with a jack.
- Remove the bolts securing the mounts using a socket set.
- Replace with new mounts, ensuring they are properly aligned and torqued to manufacturer specifications.
Reinstall:
- Reinstall all components and ensure all bolts are tightened to the correct torque.

Step 2: Replace Low Transmission Fluid

Drain Old Fluid:
- Remove the transmission drain plug and allow the fluid to drain into a suitable container.
Replace Filter (if applicable):
- If your model has a replaceable transmission filter, remove the transmission pan (may require removal of the pan bolts) and replace the filter.
Refill Transmission Fluid:
- Reinstall the drain plug.
- Use a funnel to refill with new transmission fluid through the dipstick tube, following manufacturer specifications regarding fluid type and capacity.

Step 3: Address Internal Transmission Issues

If no issues are found with mounts or fluid, internal transmission problems may exist. In this case, it is advisable to consult a professional technician or transmission specialist for further diagnosis and repair.

Final Steps

Test Drive: Once repairs are completed, conduct a test drive to verify that the clunking sound has been resolved.
Final Inspection: After the test drive, re-inspect mounts and fluid levels to ensure everything is secure and functioning properly.

Conclusion

By following these steps, you should be able to diagnose and potentially resolve the clunking sound when shifting gears in your 2018 Toyota Camry. If the problem persists after these repairs, further investigation by a professional may be necessary.