Bravada 2WD L6-4.2L VIN S (2002)
Flywheel: Technical Service Bulletins
Engine - New Flywheel to Crankshaft Bolts
File In Section: 06 - Engine/Propulsion System
Bulletin No.: 02-06-01-020
Date: May, 2002
INFORMATION
Subject:
Change to Flywheel to Crankshaft Attaching Bolts
Models:
2002 Chevrolet and GMC S/T Utility Model (TrailBlazer, Envoy)
2002 Oldsmobile Bravada
with 4.2L Inline 6 Cylinder Engine (VIN S - RPO L8) and Engine Build Date after July 16, 2001
Beginning with engines produced after July 16, 2001, the thread size of the bolts that attach the flywheel to the crankshaft has changed. The threads
changed from a 10M X 1.5 to a 10M X 1.0.
If a crankshaft needs to be replaced for any reason, there is a crankshaft kit available, P/N 88958866. The new kit includes a crankshaft and new bolts.
Exercise caution when replacing a crankshaft that you do not mix the bolts. Mixing the old and new bolts could lead to stripped bolts or bolt holes and
possible engine, crankshaft or transmission failure.
Parts Information
Parts are currently available from GMSPO.
DISCLAIMER
