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Home >> Dodge and Ram >> 2015 >> Durango SXT, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 179 (5.7L - DTCS P2172 To U1440) >> DTC Troubleshooting >> P3450-Cylinder 7 Deactivation Control Performance >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2016 Dodge Durango. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
MDS SOLENOID 7 CONTROL SHORTED TO GROUND
MDS SOLENOID 7 CONTROL OPEN
GROUND CIRCUIT OPEN
INSUFFICIENT OIL PRESSURE ACTING ON THE LIFTER LOCKING PINS
OIL PASSAGES RESTRICTED
LIFTER
MDS SOLENOID
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .