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Home >> Jeep >> 2008 >> Commander 2WD V8-5.7L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Valve Deactivation Solenoid >> Description and Operation >> Description
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Description







DESCRIPTION

The Multi Displacement System selectively deactivates cylinders 1,4,6, and 7, to improve fuel economy. It has two modes of operation:

- 8 cylinders for acceleration and heavy loads.
- 4 cylinders for cruising and city traffic.

The main components of the Multi Displacement System are:

- Unique MDS camshaft.
- Deactivating roller tappets.
- 4 control valves/solenoids.
- control valve/solenoid wiring harness.
- oil temp sensor.