Procedures

VVT solenoid, cleaning

Note! Some variation in the illustrations may occur, but the essential information is always correct.






Removal

Remove the VVT solenoid. Refer to: VVT solenoid, B5254T7 Removal and Replacement





Blow compressed air into the oil feed hole (4). Air should come out through both A ports (1 and 3).
Blow compressed air into the oil drain hole (5). Air should come out through the B port (2).
For further function checks continue with "Check function". If the duct seems to be blocked, go to "cleaning".





Connect current to the solenoid. The solenoid should click. It may be easier to hear the click by holding the solenoid.
Blow compressed air into the oil feed hole (4). Air should come out through the B port (2).
If the piston sticks or the solenoid does not work electrically, the direction of flow will not change.
If the duct seems to be blocked, go to "cleaning".






Use: Cleaner, 1161826, (1161828 US)

Allow the cleaner to act for 5 minutes.
Blow compressed air into all holes from both directions and look for contamination. Carry this out with current on and off to ensure that no dirt remains in the ducts.

Use: Cleaning agent, 1161721
Rinse with cleaner, part no. 1161721.
Blow again.
Regrease the solenoid with engine oil to prevent sticking.
After cleaning, check the function by carrying out steps 1 and 2 again.
If the solenoid still malfunctions after cleaning twice, replace the solenoid.

Installation

To install, reverse the removal procedure.

Erase DTCs and test drive the vehicle.
Check that no new DTCs have been stored.