how to fix transmission jerking issue in Toyota RAV4 Fifth Generation (2019-present)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to prevent electrical shorts during repair.
• Ensure the vehicle is on a level surface and use wheel chocks.

2. Check and Replace Transmission Fluid

• Tools Required: Socket set, transmission fluid pump, fluid catch pan
• Remove the transmission fluid pan using a socket set.
• Drain the old fluid into a fluid catch pan.
• Inspect the pan for metal shavings or debris; clean if necessary.
• Replace the transmission filter if applicable.
• Reinstall the pan with a new gasket and torque to manufacturer specifications.
• Fill the transmission with fresh, manufacturer-recommended fluid using a fluid pump.

3. Inspect and Replace Transmission Mounts

• Tools Required: Jack and jack stands, socket set, torque wrench
• Lift the vehicle using a jack and secure it with jack stands.
• Locate the transmission mounts and inspect for cracks or excessive wear.
• If damaged, remove the old mounts using a socket set.
• Install new mounts, ensuring they are tightened to manufacturer torque specifications.

4. Reprogram or Update TCM

• Tools Required: OBD-II scanner with programming capabilities
• Connect the OBD-II scanner to the vehicle.
• Follow the scanner's instructions to check for TCM updates and apply any available software updates.
• Clear any existing error codes after the update.

5. Test Throttle Position Sensor (TPS)

• Tools Required: Multimeter
• Disconnect the TPS connector and set the multimeter to measure voltage.
• While slowly moving the throttle, check for a smooth voltage output.
• If the TPS is faulty, replace it according to manufacturer guidelines.