Section 546 (5.7L Engine (Service Information)): Solenoid-MDS: Operation
WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Cylinder Deactivation
- Trap an exhaust charge
- Normal combustion event
- Don't open exhaust valve
- Don't open intake valve
- Piston is an air spring
- Cylinders deactivated in firing sequence
Cylinder Reactivation
- Empty the cylinder
- Open exhaust valve
- Open intake valve
- Normal combustion event
- Cylinders reactivated in firing sequence