How to Replace Variable Valve Timing Solenoid 01-07 Toyota Highlander L4 2.4L

Difficulty: Beginner · About 30 min · Toyota Highlander

Replace the variable valve timing solenoid on a 2001–2007 Toyota Highlander 2.4L and inspect its connector and sealing surface.

Steps

1. Remove the engine cover and unplug the solenoid

   Turn the engine off and allow it to cool. Remove the engine cover fasteners, lift the cover away, and release the VVT solenoid electrical connector.

2. Remove the old solenoid

   Remove the retaining bolt and withdraw the solenoid straight from its bore. Check the seal and opening for damage or debris, keeping contaminants out of the engine.

3. Install the replacement solenoid

   Lightly lubricate the new seal with clean engine oil, seat the replacement solenoid fully, and install its retaining bolt tightened to the vehicle specification. Reconnect the electrical plug until its lock engages.

4. Reinstall the cover and verify operation

   Reinstall the engine cover and its fasteners. Start the engine and check for oil leaks or warning lights; scan diagnostic codes if the original VVT fault remains.

Check your vehicle’s repair manual for exact specifications and fit.