Lumina V6-3.1L VIN J (2000)
Camshaft Gear/Sprocket: Technical Service Bulletins
Camshaft Sprocket - Design Identification
File In Section: 06 - Engine/Propulsion System
Bulletin No.: 00-06-01-004
Date: March, 2000
INFORMATION
Subject:
Identification of Camshaft Sprocket Design for Service
Models:
2000 Buick Century
2000 Chevrolet Impala, Malibu, Monte Carlo, Venture
2000 Oldsmobile Alero, Silhouette
2000 Pontiac Grand Am, Montana
With 3.1 L or 3.4 L Engine (VINs J, E - RPOs LGB, LA1)
Some dealers may have parts identification concerns regarding the 2000 3.1 L and 3.4 L engines (RPOs LG8, LA1) camshaft and crankshaft timing
components. Dealers may have encountered that parts ordered do not fit, or have a different appearance than those the vehicle was originally equipped
with.
The cause is revised drive sprockets, chain and dampener introduced into vehicle production, replacing previous design components. This occurred
during the model year.
Important: Previous and revised design components may not be intermixed with each other. Attempting to use a mix of the two types of timing
components will result in the inability to assemble and time the vehicle.
Reference the following figures and associated pant numbers to clarify which replacement parts should be ordered, depending upon which design the
vehicle was equipped with. If it is necessary to replace all components during service, it is recommended to use the revised design components.
Parts are currently available from GMSPO.
Previous Design Sprocket Identification And Part Numbers
