Variable Camshaft Timing: Notes
WARNING: This page is about a different car, the 2018 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.
| ITEM | DESCRIPTION |
|---|---|
| 1 | Variable Camshaft Timing (VCT) solenoid - Intake |
| 2 | VCT actuator - Intake |
| 3 | Secondary timing chain |
| 4 | VCT actuator - Exhaust |
| 5 | VCT solenoid - Exhaust |
The Powertrain Control Module (PCM) controls the system using information from the Camshaft Position (CMP) sensors and the Crankshaft Position (CKP) sensor.
The timing of the inlet and exhaust camshafts can be adjusted independently by an oil pressure controlled torsional assist Variable Camshaft Timing (VCT) system. The VCT solenoid that is controlled electrically determines the position of the VCT actuator which has a direct interface with the camshafts.
Each VCT actuator is located on the camshaft at the front of the engine and is secured with a center bolt. Each center bolt contains an oil control valve.