Some owners of 2006-08 RAV4 trucks with 2GR-FE V6 engines may come into your store with the check engine light on. On initial investigation, you may find one or more variable valve timing trouble codes stored in the PCM. In some cases, misfire codes may be present, as well. According to Toyota, all these problems could be due to defective cam timing oil control valves (OCVs). Updated valves are now available to address the problem.
Looking at the illustration above, you'll notice that there are four OCVs on this V6 — two on each bank. Determining what control valve(s) has failed is simply a matter of writing down the code(s) that you find with your scan tool. As an example, if you pull code P0011, P0012 and/or P0016, the intake OCV on bank 1 is history. Replace it with an updated valve, Part No. 15330-0P030. If you pull code P0021, P0022 and/or P0018, the intake OCV on bank 2 is defective. Replace the valve with Part No. 15330-0P020. If the scan tool display shows code P0014, P0015 and/or P0017, the exhaust OCV on bank 1 has gone by the wayside. Replace the valve with Part No. 15330-0P020. Finally, if you pull code P0019, P0024 and/or P0025, the exhaust OCV on bank 2 has failed. Remove it and replace with an updated valve, Part No. 15340-0P020.
Before installing the new control valve(s), coat its O-ring with engine oil to ease installation, then torque the retaining bolt to 80 in-lbs. To complete the repair, clear the trouble code(s) from computer memory, then start the engine and make sure the check engine light remains off.
"Factory Fixes" is written by Jim DePalma, a 30-year veteran of the auto repair business who has served stints as a service manager, parts manager and ASE-certified technician. His column provides vehicle manufacturers' authentic factory technical service bulletins (TSBs) that have been condensed for easier reading. Mr. DePalma advises that techs always check with a dealer or repair information system for the latest revisions before starting to work on a vehicle. He can be reached via e-mail at [email protected].
Be on the lookout for Tire Business' new 5 Factory Fixes newsletter, publishing the first Friday of each month.