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Home >> Ford >> 2002 >> Cutaway 7.3 F >> Repair and Diagnosis >> External Pages >> Different car >> Section 2913 (Automatic Transmission 5R110W (TORQSHIFT(R)) -- F450-F550 Super Duty) >> Diagnosis & Testing >> Diagnosis By Symptom >> Diagnostic Routines >> Soft/Slipping 2-1 Shift

Soft/Slipping 2-1 Shift

WARNING: This page is about a different car, the 2011 Ford F550 Super Duty and 2011 Ford F450 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC ROUTINES - SOFT/SLIPPING 2-1 SHIFT

Possible Component Reference/Action
235 - ROUTINE 
Powertrain Control System 
  • CARRY OUT On-Board Diagnostic (OBD) tests. REFER to the INTRODUCTION article for diagnosis and testing of the PCM. For diagnosing SSPCB  , GO to PINPOINT TEST A . For diagnosing TSS  /intermediate shaft speed sensor, GO to PINPOINT TEST D . REPAIR as necessary. CLEAR the DTCs, ROAD TEST the vehicle and RERUN the OBD  test.
  • PCM, vehicle wiring harnesses, transmission internal harness, Shift Solenoid Pressure Control B (SSPCB), Turbine Shaft Speed (TSS)/intermediate shaft speed sensor
Transmission Fluid 
  • Incorrect level
  • CHECK transmission fluid level and adjust as necessary. REFER to PRELIMINARY INSPECTION  in this service information.
  • CARRY OUT the transmission Fluid Condition Check. REFER to PRELIMINARY INSPECTION  in this service information.
  • Condition
Incorrect Line Pressures 
  • CHECK pressure at line tap. CARRY OUT Line Pressure Test. REFER to SPECIAL TESTING PROCEDURES  in this service information. FOLLOW the pressure diagnosis test as required.
  • Low pressures
Solenoid Body Assembly 
  • Bolts not tightened to specification
  • TIGHTEN to specification.
  • Filter gasket damaged
  • INSTALL a new filter gasket.
  • Contamination
  • DISASSEMBLE and CLEAN.
  • If damaged or parts are missing, INSTALL a new solenoid body assembly. If misassembled, reassemble correctly.
  • SSPCB  damaged, stuck or bore damaged; manual valve damaged, stuck or bore damaged
Fluid Pump Assembly 
  • Bolts not tightened to specification
  • TIGHTEN to specification.
  • Gasket damaged
  • INSTALL a new gasket.
  • Porosity, cross leaks, cup plug missing, plugged hole
  • REPAIR as necessary.
  • Pump gears and/or gear pocket damaged
  • INSTALL a new pump.
  • INSTALL a new seal or pump assembly.
  • Control valves, springs or seals damaged, stuck or not assembled correctly
Overdrive Clutch Assembly 
  • Seals, piston damaged
  • REPAIR as necessary.
  • Filtered orifice damaged, missing, not seating, off location
  • INSPECT for mislocation, poor seating, damage. INSTALL a new pump assembly if damaged.
  • Friction elements damaged or worn
  • REPAIR as necessary.
  • Return springs damaged
  • REPAIR as necessary.
  • REPAIR as necessary.
  • Snap ring for One-Way Clutch (OWC) and/or return spring not seated or damaged
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