Alero L4-144 2.4L DOHC VIN T SFI (2000)
Fluid Pump: Technical Service Bulletins
A/T - 4T40E/4T45E, Oil Pump Drive Inspection
File In Section: 07 - Transmission/Transaxle
Bulletin No.: 01-07-30-016
Date: April, 2001
INFORMATION
Subject:
Oil Pump Drive Shaft Assembly Inspection
Models:
1999-2001 Chevrolet Cavalier, Malibu
1999 Oldsmobile Cutlass
1999-2001 Oldsmobile Alero
1999-2001 Pontiac Grand Am, Sunfire
with 4T40-E/4T45-E Transaxle (RP0 MN4)
Before reassembling the oil pump drive shaft assembly, be sure to inspect the spacer. The oil pump drive shaft spacer (the spacer is pressed onto the
shaft and is part of the shaft assembly) could be loose, missing, or broken. Broken spacers have been known to cause damage to the oil pump shaft, the
turbine shaft, the channel plate, the control valve body and the torque converter. This damage results in metal debris throughout the transaxle. The
control valve body must be thoroughly cleaned or replaced. The same applies to the clutches and the pressure switch assembly.
If the oil pump drive shaft spacer is found to be damaged, inspect the oil pump shaft, the turbine shaft, the channel plate, the control valve body and the
torque converter. All seals, gaskets, fiber clutches and the converter must be replaced. All parts must be cleaned and the control valve body will need
disassembling and cleaning or replacement as well. The transaxle cooler and lines also must be flushed.
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