Fleetwood Brougham V8-307 5.0L (1989)
Strut / Shock Tower: Customer Interest
Interior - Road Noise in Rear Passenger Compartment
Group Ref.: 10 - Body
Bulletin No.: 011612
Date: August, 1994
SUBJECT:
ROAD NOISE IN REAR PASSENGER COMPARTMENT (INSTALL DAMPENING PACKAGE)
MODELS:
1985-93 CADILLAC DE VILLE AND FLEETWOOD
THIS BULLETIN IS BEING REVISED TO INCLUDE THE 1992 AND 1993 MODEL YEARS. PREVIOUS DIVISIONAL PUBLICATION
NUMBERS WERE:
CADILLAC
T-91-9
GM OF CANADA
91-2-240
Some owners may comment on road noise emitting from the rear seat or rear sail panel areas on coarse road surfaces (i.e. worn or stud-damaged
concrete). This sounds very similar to wheel bearing noise. Follow the procedure below before replacing a hub and bearing assembly.
To repair this condition install dampening package, P/N 25600885, on top of the left and right rear strut towers (inside the rear compartment area) using
the following procedure:
1.
Remove speaker enclosures from rear shelf.
IMPORTANT:
Additional trim removal is not necessary.
2.
Grind the ends of the rear seat shoulder harness retractor bolts flush where they protrude down from the rear shelf.
3.
Position left and right dampener weights on top of the rear shock towers. (Dampeners are marked LH for left and RH for right.)
Install one stud extender on the rearmost strut mount stud on each side on top of the existing nut by passing it through the hole in the dampener
weight and running it down by hand. Then, lift the weight up so the stud flats are exposed and torque to 12-15 N-m (9-11 lbs.ft.) with an open-end
wrench.
4.
Install washers and M-14 nuts and torque to 20 N-m (15 lbs.ft.). Reinstall the main speaker enclosures.
PARTS INFORMATION:
Parts are currently available from GMSPO.
WARRANTY INFORMATION:
For vehicles repaired under warranty, use:
Labor Operation
Labor Time
E5758 (RH)
0.3 hr.
E5759 (LH)
0.3 hr.
