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Home >> Chrysler >> 2009 >> 300 Signature Series >> Repair and Diagnosis >> External Pages >> Different car >> Section 243 (5.7L Engine (Service Information)) >> Engine Block >> Solenoid-MDS >> Operation >> MDS Solenoid

MDS Solenoid

WARNING: This page is about a different car, the 2008 Dodge Magnum, 2008 Dodge Charger, and 2008 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

Cylinder Deactivation 

  1. Trap an exhaust charge from a normal combustion event
  2. Normal combustion event
  3. Don't open the exhaust valve
  4. Don't open the intake valve
  5. Piston is an air spring
  6. Cylinders deactivated in firing sequence

Cylinder Reactivation 

  1. Open the exhaust valve
  2. Empty the cylinder
  3. Open the intake valve
  4. Normal combustion event
  5. Cylinders reactivated in firing sequence
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