VVT Solenoid, Cleaning: Check

Fig 1: Identifying Oil Feed Hole On VVT Solenoid

Courtesy of VOLVO CARS OF NORTH AMERICA.

Remove the VVT solenoid. Replacing the variable valve timing solenoid

Blow compressed air into the oil feed hole (2). Air should come out through the B port (1)

If the duct seems to be blocked, go to the cleaning step.

Fig 2: Identifying Oil Feed Hole On VVT Solenoid

Courtesy of VOLVO CARS OF NORTH AMERICA.

Connect current to the solenoid.

The solenoid should click. It may be easier to hear the click with the solenoid in your hand.

Blow compressed air into the oil feed hole (2). Air should come out through the A port (3). If the piston jams or the solenoid does not work, the direction of flow will not change. If the duct seems to be blocked, go to the cleaning step.