Durango 2WD V8-5.7L Hybrid (2009)
Valve Deactivation Solenoid: Description and Operation
Multiple Displacement Solenoid - Operation
OPERATION
Cylinder Deactivation
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Trap an exhaust charge from a normal combustion event
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Normal combustion event
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Don't open the exhaust valve
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Don't open the intake valve
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Piston is an air spring
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Cylinders deactivated in firing sequence
Cylinder Reactivation
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Open the exhaust valve
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Empty the cylinder
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Open the intake valve
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Normal combustion event
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Cylinders reactivated in firing sequence
