Alero L4-144 2.4L DOHC VIN T SFI (2000)
This condition may be caused by the molded seal portion of the direct clutch piston assembly delaminating from the steel housing eventually causing the
outer lip of the piston seal to cut or tear. This cut or tear prevents the direct clutch piston assembly from applying causing the loss of both third and
fourth gear.
Correction
To correct the above condition, install a Tech 2 to the vehicle and command third gear. If third gear does not exist, proceed with an inspection of the
direct clutch piston assembly for the cause listed above. If the direct clutch piston has a torn seal, replace it with a new piston that has been released to
prevent this condition. Inspect and replace any other parts that show potential damage or quality concerns.
Refer to the 4T40-E/4T45-E Unit Repair Section of the Service Manual for the proper procedure.
Service Parts Information
Part Number
Description
24205044
Direct Clutch Piston Assembly
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation
Labor Time
K7561
Use published labor
operation time