Continuously Variable Valve Lift
| ITEM | DESCRIPTION |
|---|---|
| 1 | Accumulator (quantity 4) |
| 2 | Solenoid (quantity 4) |
| 3 | Bolt - Roller finger cam follower (quantity 4) |
| 4 | Roller finger cam follower (quantity 4) |
| 5 | Pump (quantity 4) |
| 6 | Hydraulic valve actuator (quantity 8) |
| 7 | Temperature sensor |
The hydraulic valve actuators open the valves hydraulically with oil pressure. The oil is allowed to flow to the chambers that actuate the valves dependent on if a solenoid is actuated or not. Opening and closing of the solenoid allows the operation of the Continuously Variable Valve Lift (CVVL) assembly in the 4 different lift modes outlined below. The solenoid is controlled by the Powertrain Control Module (PCM) based on calculated engine load values.