how to identify CVT issues in my Toyota RAV4 XA40 (2013-2018)

Solution

1. Preparation

• Tools Required: OBD-II scanner, transmission fluid dipstick, funnel, clean container for fluid.
• Gather all necessary tools and parts, and ensure the vehicle is parked on a level surface.
• Disconnect the battery to avoid any electrical issues while working on the transmission.

2. Fluid Inspection and Replacement

• Locate the transmission fluid dipstick and remove it.
• Insert a clean funnel into the dipstick tube and check the fluid level. If low, add the recommended CVT fluid (Toyota CVT Fluid TC).
• If the fluid is dark or has a burnt smell, drain the old fluid:
  1. Place a clean container under the transmission pan.
  2. Remove the drain plug and allow the fluid to completely drain.
  3. Replace the drain plug and torque it to the manufacturer’s specifications (typically around 25 ft-lbs).
  4. Refill with new CVT fluid through the dipstick tube using the funnel.

3. Component Inspection

• Remove any necessary panels or covers to access the CVT belt and pulleys.
• Visually inspect the CVT belt and pulleys for signs of wear, such as fraying, cracking, or glazing.
• If damage is found, proceed with replacing the CVT belt and pulleys:
  1. Disconnect any electrical connectors and remove bolts securing the CVT assembly.
  2. Carefully slide the CVT assembly out and replace the components.
  3. Reinstall the CVT assembly and torque all bolts to specified settings.

4. Clear Codes and Test Drive

• Reconnect the battery and use the OBD-II scanner to clear any stored trouble codes.
• Conduct a test drive to ensure normal operation and check for any remaining symptoms.