Skylark V6-3100 3.1L VIN M SFI (1996)
Fluid Pump: Technical Service Bulletins
A/T - 4L65E, 4L60E, 4L60, 200-4R Oil Pump Spring
Bulletin No.: 04-07-30-006
Date: February 11, 2004
INFORMATION
Subject:
4L65-E, 4L60-E, 4L60 and 200-4R Automatic Transmission Oil Pump Spring First and Second Design Identification
Models:
2004 and Prior Passenger Cars and Light Duty Trucks
2003-2004 HUMMER H2
with 4L65-E, 4L60-E, 4L60 or 200-4R Automatic Transmission
The purpose of this bulletin is to identify the oil pump spring usage for the two different pump designs. Manufacturing of the first design oil pump
springs ended December 15, 2003. Manufacturing of the second design oil pump spring began December 16, 2003
The first design oil pump springs (206) and (207) DO NOT have any identification markings. The first design springs (206) and (207) use an inner and
outer spring, two springs.
The second design oil pump spring (245) is identified with tapered ends on the spring (245) as shown above. The second design spring (245) is a single
spring.
When servicing either (first design or second design) oil pump body, use the new single oil pump spring (245) with tapered ends.
