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Torque Converter Clutch Operation Concerns: Cycling/Shudder/Chatter

WARNING: This page is about a different car, the 2005 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
TORQUE CONVERTER CLUTCH OPERATION CONCERNS: CYCLING/SHUDDER/CHATTER

Possible Component Reference/Action
242 - ELECTRICAL ROUTINE 
Powertrain Control System 
  • Electrical inputs/outputs, vehicle wiring harnesses, PCM, torque converter clutch (TCC) solenoid, OSS
  • Carry out Self-Test. REFER to the INTRODUCTION - GASOLINE article for diagnosis and testing of the Powertrain Control System. GO to PINPOINT TEST E . Repair as required. Clear DTCs, road test and repeat Self-Test.
  • Speed control equipped vehicles
  • Evaluate with speed control off.
342 - HYDRAULIC/MECHANICAL ROUTINE 
Fluid 
  • Condition
  • Inspect fluid condition. If burnt, drain fluid and converter. Install a new fluid and filter assembly. Bring vehicle to normal operating temperature. Carry out the TRANSMISSION DRIVE CYCLE TEST . Carry out Transmission Self-Test. If condition still exists, continue diagnostics.
Main Controls 
  • Solenoid pressure regulator valve, No. 7 check ball, bypass clutch control valve and plunger, converter pressure limit valve stuck, damaged or assembled incorrectly
  • Inspect for damage. Repair as required.
  • Bolts not tightened to specifications
  • Tighten bolts to specifications.
  • Solenoid screen blocked or damaged
  • Clean or install a new screen.
  • TCC solenoid malfunction
  • Activate solenoid using diagnostic tool. If solenoid operation cannot be felt when placing hand on solenoid, install a new solenoid. Inspect O-rings for damage. Repair as required.
  • Gaskets damaged
  • Inspect for damage and install a new gasket.
Pump Assembly 
  • Bolts not tightened to specification
  • Tighten bolts to specification.
  • Porosity/cross leaks, missing balls or leaking
  • Inspect for porosity/leaks or missing balls. Install a new pump as required.
  • Gaskets damaged
  • Inspect for damage and install a new gasket.
Input Shaft 
  • Seals damaged
  • Inspect for damage. Repair as required.
Torque Converter 
  • Excessive end clearance
  • Inspect converter. Install a new or remanufactured torque converter as required.
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