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P3428 CHRYSLER

P3428 CHRYSLER - Cylinder 4 Deactivation Control Circuit High

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Low oil pressure
  • Restricted oil passage
  • Engine mechanical condition
  • Faulty Multiple Displacement System (MDS) Solenoid
  • Multiple Displacement System (MDS) Solenoid harness is open or shorted
  • Multiple Displacement System (MDS) Solenoid circuit poor electrical connection

Tech notes

Although in some cases changing the engine oil may fix the problem, usually the Multi Displacement System Solenoid may need to replaced.

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P3428 Chrysler Description

When all the criteria has been met,power is supplied to each Multi-Displacement System (MDS) Solenoid when engine is making a transition from 8 cylinder mode to 4 cylinder mode. By actuating the solenoid, oil pressure is raised to the pair of lifter that coincide with each particular solenoid. The oil pressure pushes in the locking pins that allows the lifter to collapse, decoupling the valves and camshafts.
OBDII Code P3428 Chrysler - Cylinder 4 Deactivation Control Circuit High - AutoCodes.com

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P3428 CHRYSLER Comments

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