Variable Camshaft Timing
| 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 Variable Camshaft Timing (VCT) system using data from the following:
- Camshaft Position (CMP) sensor (quantity 2)
- Crankshaft Position (CKP) sensor.
The timing of the intake and exhaust camshafts can be adjusted independently by an engine oil pressure controlled torsional assist VCT system. The PCM electrically controls the VCT solenoids with data from the 2 CMP sensors and the CKP sensor to control the position of the camshafts.
Each VCT actuator is located on the camshaft at the rear of the engine and is secured with a center bolt. Each center bolt contains an oil control valve.
Each VCT solenoid is located on the timing chain at the rear of the engine and is secured with 2 bolts.