Skylark V6-3100 3.1L VIN M SFI (1996)
Front Crankshaft Seal: Customer Interest
Engine - Oil Leaks From Front Crankshaft Seal
Bulletin No.: 07-06-01-023
Date: December 05, 2007
TECHNICAL
Subject:
60 Degree V6 Engine Oil Leak at Crankshaft Front Oil Seal (Use New Crankshaft Front Oil Seal Installer Tool EN-48869)
Models:
1986-2008 GM Passenger Cars and Light Duty Trucks (including Saturn)
with 2.8L, 3.1L, 3.4L, 3.5L or 3.9L 60 Degree V6 Engine
(VINs D, E, F, J, K, L, M, N, R, S, T, V, W, X, Z, 1, 3, 8, 9, W, R - RPOs LG6, LA1, LNJ, LG8, LL1 or LX9, L82, LL2, LB8, LHO, LG5, LB6, LE2 or
LQ1, LH7, LC1, L44, LZ4, LZE, LZ9, LGD, LZ8, LZG)
This bulletin does not apply to 2004-2007 Saturn VUE models with 3.5L DOHC V6 Engine (VIN 4 - RPO L66) or 2005-2008 Cadillac CTS with 2.8L
HFV6 Engine (VIN T - RPO LP1).
This bulletin only applies to 60 degree V6 engines. Some of the discontinued 60 degree V6 engine VINs and RPOs may have carried over to other new
model year engines and may no longer be a 60 degree V6 engine. So this bulletin may not apply. It is very important to verify that the information shown
is correct before using this bulletin.
If ALL the information from the vehicle (year, size, VIN Code, RPO) you're working on can be found under the models listed above, then this bulletin
applies to that engine. If one or more of the vehicle's information can NOT be found under the models listed above, then this bulletin does NOT apply.
Condition
Some customers may comment on external oil leakage.
Correction
Before replacement of the crankshaft front oil seal, be sure the PCV system is operating correctly.
Tools Required
TOOLS WERE SHIPPED TO YOUR DEALERSHIPS. IF YOU HAVE NOT RECEIVED THEM OR THEY ARE LOST, PLEASE CALL GM
SPECIAL SERVICE TOOLS AT 1-800-GM-TOOLS.
