Shift Concerns: Soft/Slipping 1-2 Shift (Automatic)

WARNING: This page is about a different variant/trim than selected.

POSSIBLE COMPONENT REFERENCE CHART

Possible Component	Reference/Action
230 - ELECTRICAL ROUTINE
Solenoid Body	Verify solenoid body strategy data stored in the PCM, download new identification and strategy as necessary. Refer to SOLENOID BODY STRATEGY in this service information.
Incorrect solenoid body strategy data stored in the PCM
330 - HYDRAULIC/MECHANICAL ROUTINE
Incorrect Pressures	Check pressure at pressure tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES in this service information. See the LINE PRESSURE CHART for specifications. If not OK, check main control valve body.
Line pressure
Main Control Valve Body
Bolts out of torque specification	Tighten bolts to specification.
Gaskets and separator plate - damaged, off location	Inspect for damage. Install new as required.
Intermediate regulator valve, springs, clips - loose, stuck, missing, binding, misassembled	Inspect for damage. Repair or install new as required.
Shift Solenoid C (SSC) not functioning correctly	Activate solenoid using scan tool. Refer to OUTPUT STATE CONTROL (OSC) MODE in this service information. Go to PINPOINT TEST A . Install a new solenoid as required. Refer to SOLENOIDS in this service information. Download a new solenoid body strategy into the PCM. Refer to SOLENOID BODY STRATEGY in this service information.
Intermediate Clutch Assembly
Seals - damaged	Inspect for damage. Install new as required.
Piston - damaged	Inspect for damage. Install new as required.
Friction - damaged, worn	Inspect for damage. Install new as required.
Cylinder hub - damaged	Inspect for damage. Install new as required.
Return spring assembly - damaged	Inspect for damage. Install new as required.
Pump Assembly
Worn/cross leaks	Inspect for damage. Install new as required.
Component damaged	Inspect for damage. Install a new pump assembly if required.