Regal V6-173 2.8L (1988)

Engine Mount: All Technical Service Bulletins
Engine - Noise In the Passenger Compartment
Bulletin 88-6-27A
Date Mar. '89
Ref. No. 88-247A-6
Corp. Ref. No. 831068R
SUBJECT:
ENGINE NOISE IN THE PASSENGER COMPARTMENT
MODELS AFFECTED: 1988 REGALS
This bulletin has been revised to provide an additional procedure (Step C), that will involve replacement of the existing engine torque struts with new
struts. This revision replaces Buick bulletin 88-6-27 (date 11/88), which should be discarded.
Customers may comment about high engine noise level in the passenger compartment, especially on medium to heavy acceleration.
This concern may be addressed by performing the following three procedures:
Fill up the rear portion of the upper motor compartment rail with foam. (Both sides).
Figure 1 - Upper Motor Compartment Rail
Step A
1.
Remove forward hood hinge bolt (13 mm) and center fender splash panel (fender skirt).
2.
Stick a piece of material (shop rag, towelling or equivalent) through 2" X 2" slot in the rail to block flow of foam in the forward direction (See
Figure 1).
3.
Install expandable foam (insulating sealant by Polycel (R) or equivalent) through hinge hole. Fill up the rail until it starts coming out from hinge
hole. Clean the access foam and install hinge bolt.
4.
Take out piece of material after foam settles (Approximately 10 minutes).
5.
Install fender splash panel.