LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2003 >> Cutaway 7.3 F >> Repair and Diagnosis >> External Pages >> Different car >> Section 2585 (Automatic Transmission - 6R140 (TORQSHIFT(R)6)) -- F250-F550 Super Duty) >> Diagnosis And Testing >> Special Testing Procedures >> Line Pressure Test >> Line Pressure Diagnosis Chart

Line Pressure Diagnosis Chart

WARNING: This page is about a different car, the 2011 Ford Pickup, 2011 Ford F550 Super Duty, 2011 Ford F450 Super Duty, and 2011 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
LINE PRESSURE DIAGNOSIS CHART

Test Results Possible Source
HIGH at IDLE - ALL RANGES Wiring Harnesses Line Pressure Control (LPC) Solenoid LPC  Valve
LOW at IDLE - ALL RANGES Low Fluid Level Fluid Inlet Filter/Seal Main Control Cross Leaks Gaskets Pump Separator Plate
LOW in Park ONLY Main Control
LOW in Reverse ONLY Separator Plate Reverse Clutch Valve Body Forward Clutch
LOW in Neutral ONLY Main Control
LOW in DRIVE ONLY Low/Reverse (1,R) Clutch Forward (1,2,3,4) Clutch Main Control
LOW in Manual 2nd ONLY Forward (1,2,3,4) Clutch Intermediate (2,6) Clutch Main Control
LOW in Manual 1st ONLY Low/Reverse (1,R) Clutch Forward (1,2,3,4) Clutch Main Control
scientia non olet · About LEMON Manuals