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Home >> Dodge and Ram >> 2011 >> Durango R/T, AWD >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Powertrain Control Module (Pcm) - DTCS P0870 To U1449 - 545RFE Automatic Transmission >> Diagnosis And Testing >> P2704-Inadequate Element Volume 4C >> Possible Causes
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Possible Causes

Possible Causes 
BROKEN 4C RETURN SPRING OR DISLODGED SNAP RING
BROKEN 4C ACCUMULATOR SPRING(S)
HYDRAULIC LEAK IN THE VALVE BODY
TRANSMISSION SOLENOID/TRS ASSEMBLY
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting Procedure before proceeding. Refer to  STANDARD PROCEDURE  .