Eldorado V8-4.6L VIN Y (1994)
Flex Plate: Technical Service Bulletins
Engine - Noise From the Flywheel Area
Group Ref.: Engine
Bulletin No.: 476001
Date: April, 1994
SUBJECT:
TICKING, RATTLING, KNOCK OR CLANGING NOISE FROM THE FLYWHEEL AREA OF THE ENGINE (INSTALL DOWEL PIN)
MODELS:
1993 CADILLAC ALLANTE
1993-94 CADILLAC ELDORADO AND SEVILLE
1994 CADILLAC CONCOURS With 4.6L NORTHSTAR ENGINE
(RPOs LD8 AND L37 - VINs Y AND 9)
CONDITION:
Some owners may experience a ticking, rattling, knock or clanging type noise from the flywheel area of the engine. This noise is usually loudest at idle
and drive ranges.
CAUSE:
The noise may be caused by a cracked or loose flywheel. Flywheel damage may be caused by misalignment of the engine to the transaxle due to incorrect
engine block dowel pin height and/or missing dowel pins.
CORRECTION:
Install the dowel pin to a height of 9.5 mm from the rear block face (Figure 1). If a dowel pin has a height greater than 9.5 mm from the rear block face,
it must be driven in to the correct height. Refer to the 1993 Eldorado/Seville Service Manual, Section 6A2, for engine flywheel replacement procedures.
PART INFORMATION:
When a dowel pin is required, use P/N 12338076. Parts are currently available from GMSPO.
