FixVault

Possible Causes

Possible Causes 
TCC HYDRAULIC CONTROL CIRCUIT
LOCKUP CONTROL VALVE STICKING IN ITS BORE
TORQUE CONVERTER
TCC SOLENOID
INTERNAL TRANSMISSION
VALVE BODY
TRANSMISSION CONTROL MODULE (TCM)

Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  STANDARD PROCEDURE  .