how to fix the transmission slipping in my Toyota Corolla E170 (2013-2019)?

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

568 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 in Toyota Corolla E170 (2013-2019). 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 the battery before starting work on electrical systems.
•Allow the engine to cool before working on the transmission.

Symptoms

•Slipping sensation during acceleration
•High RPM with little to no increase in vehicle speed
•Delayed engagement when shifting from park to drive or reverse
•Warning light illuminated on the dashboard
•Fluid leaks underneath the vehicle
•Unusual noises during gear changes

Diagnostic Steps

1
Check the transmission fluid level and condition with the dipstick; look for burnt smell or dark color.
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 metal shavings.
4
Test the transmission solenoids for proper operation using a multimeter.
5
Examine the transmission filter for clogs or blockages.
6
Perform a visual inspection of the transmission and associated components for leaks or damage.

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

•Socket set
•OBD-II scanner
•Multimeter
•Transmission fluid pump

Parts Required

•Transmission fluid (ATF WS)
•Transmission filter
•Gasket for transmission pan
•Transmission solenoids (if applicable)

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 with the dipstick; look for burnt smell or dark color.
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 metal shavings.
4
Test the transmission solenoids for proper operation using a multimeter.
5
Examine the transmission filter for clogs or blockages.
6
Perform a visual inspection of the transmission and associated components for leaks or damage.

Solution

1. Preparation

Tools Required: Socket set, OBD-II scanner, multimeter, transmission fluid pump.
Safety Warnings: Disconnect the battery before starting work on electrical systems. Allow the engine to cool before working on the transmission.

2. Fluid Replacement

Step 1: Remove the transmission fluid drain plug using a socket wrench and drain old fluid into a catch pan.
Step 2: Replace the transmission filter by removing the pan. Use a socket set to remove the bolts and carefully lower the pan.
Step 3: Replace the old filter with a new one, ensuring it is securely fitted.
Step 4: Clean the transmission pan and replace the gasket to prevent leaks upon reinstallation.
Step 5: Reinstall the transmission pan and torque the bolts to the manufacturer’s specifications (usually 10-15 ft-lbs).
Step 6: Refill the transmission with new fluid through the dipstick tube using a fluid pump, ensuring you use the correct type (typically ATF WS for Toyota).

3. Solenoid Replacement (if necessary)

Step 1: If solenoids are faulty, remove the electrical connectors and bolts securing the affected solenoid(s).
Step 2: Replace with new solenoids, ensuring they are correctly positioned.
Step 3: Reconnect the electrical connectors and check for secure fitment.

4. Final Checks

Step 1: Reconnect the battery and start the engine.
Step 2: Cycle through all gear ranges (P, R, N, D) to check for proper engagement.
Step 3: Perform a test drive to ensure the slipping issue has been resolved.