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Home >> Jeep >> 2007 >> Commander Base, 4.7 P, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (5.7L Engine (Service Information)) >> Engine Block >> Solenoid-MDS >> Diagnosis And Testing >> MDS Solenoid

MDS Solenoid

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The Multi Displacement System has the following detectable issues:

  1. Solenoid circuit
  2. Fail to deactivate a cylinder(s)
  3. Fail to reactivate a cylinder(s)
  4. Low oil pressure
MDS SOLENOID DIAGNOSIS

CONDITION POSSIBLE CAUSES CORRECTION
MDS does not activate 1. Low oil pressure 1. Check for proper oil pressure
2. Bad oil temp sensor 2. Replace oil temp sensor
- 3. Malfunctioning MDS Solenoid 3. Replace Solenoid
- 4. Malfunctioning MDS Tappet 4. Replace Tappet
MDS Does Not Deactivate 1. Low oil pressure 1. Check for proper oil pressure
2. Bad oil temp sensor 2. Replace oil temp sensor
- 3. Malfunctioning MDS Solenoid 3. Replace Solenoid
- 4. Malfunctioning MDS Tappet 4. Replace Tappet