why is my Toyota Corolla E170 (2013-2019) transmission jerking when shifting

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

539 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 jerking issues in 2013-2019 Toyota Corolla E170. Step-by-step guide with symptoms and solutions.

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 opening the transmission fluid fill plug.

Symptoms

•Jerking or shuddering sensation during gear shifts
•Delayed engagement when shifting from park to drive or reverse
•Unusual noises (clunking or grinding) during shifting
•Check engine light illuminated
•Poor acceleration or hesitation
•Fluid leaks under the vehicle

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner and note any transmission-related codes.
2
Check the transmission fluid level and condition; look for signs of contamination or burning smell.
3
Inspect the transmission fluid for metal shavings or debris.
4
Examine the transmission mounts for signs of wear or damage.
5
Verify the operation of the throttle position sensor (TPS) and mass airflow sensor (MAF).
6
Test drive the vehicle to replicate the issue and observe the behavior of the transmission in various driving conditions.

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
•Multimeter
•Fluid pump

Parts Required

•Toyota ATF WS transmission fluid
•Transmission mounts (if necessary)
•Throttle position sensor (if necessary)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner and note any transmission-related codes.
2
Check the transmission fluid level and condition; look for signs of contamination or burning smell.
3
Inspect the transmission fluid for metal shavings or debris.
4
Examine the transmission mounts for signs of wear or damage.
5
Verify the operation of the throttle position sensor (TPS) and mass airflow sensor (MAF).
6
Test drive the vehicle to replicate the issue and observe the behavior of the transmission in various driving conditions.

Solution

1. Preparation

Gather all necessary tools and parts.
Park the vehicle on a level surface and set the parking brake.
Disconnect the battery to prevent any electrical shorts.

2. Check and Replace Transmission Fluid

Step 1: Locate the transmission fluid dipstick. Remove it and check the fluid level.
Step 2: If the fluid is low, add the recommended transmission fluid (Toyota ATF WS).
Step 3: If the fluid is discolored or has a burnt smell, drain the old fluid using a fluid pump and replace it.
Step 4: Refill with the appropriate amount of new transmission fluid, ensuring the correct level is achieved.

3. Inspect and Replace Transmission Mounts (if needed)

Step 1: Visually inspect the transmission mounts for cracks or deterioration.
Step 2: If damaged, use a socket set to remove the bolts securing the mounts.
Step 3: Replace with new mounts and torque the bolts to the manufacturer's specifications (usually around 30-50 ft-lbs).

4. Throttle Position Sensor (TPS) Check

Step 1: Locate the TPS on the throttle body.
Step 2: Disconnect the electrical connector and use a multimeter to test the voltage output when the throttle is opened and closed.
Step 3: If the TPS is faulty, replace it with a new unit and reconnect the electrical connector.