GM Service Manual Online
For 1990-2009 cars

Buzzing Noise at Rear of Vehicle

Subject:Buzzing Noise at Rear of Vehicle (Install Rear Compartment Dampers)

Models:1995 SL, SL1 Sedans, SC1 Coupes and SW1 Wagons



Condition

Some customers may comment about a buzzing noise from the rear of the vehicle.

Cause

Fuel Pump noise transmitted into passenger compartment.

Correction

Install rear compartment dampers using procedures in this bulletin

NOTE: SL2 Sedans, SC2 Coupes and SW2 Wagons already have dampers installed.

Procedures:


    Object Number: 877948  Size: SH
  1. On Sedans and Wagons:
  2. 1.1. Pull on top of folding rear seat back cushion opening side train assemblies (side holsters) to disengage upper fastener.
    1.2. Lift rear seat back cushions opening side trim assemblies off of lower guide pin and disengage outboard guide pin.

    Object Number: 879992  Size: MH
  3. On all models:
  4. 2.1. Release seat back latch and tilt folding rear seat back assembly forward.
    2.2. Disengage cargo floor carpet from folding rear seat back assembly.
    2.3. Slide folding rear seat back assembly toward center of vehicle of vehicle and deflect outboard bracket to disengage pivot pins.

    Object Number: 863822  Size: SH
  5. On Coupes:
  6. 3.1. Remove rear seat center console inserts and fasteners.
    3.2. Remove rear seat center console.

    Object Number: 867848  Size: SH
  7. On all models :
  8. 4.1. Disengage rear seat cushion assembly by pushing rearward, then upward at front retaining locations to release rear seat cushion assembly from the retainer.
    4.2. Slide rear seat cushion assembly, guiding seat belt buckles through rear seat cushion assembly and remove rear seat cushion assembly.

    Object Number: 877946  Size: SH
  9. Remove fasteners that attach body L-pillar trim finish panel molding assembly.
  10. Starting at the front of the body L-pillar trim finish panel molding assembly, pull firmly on the molding at the clip locations and remove from vehicle.

  11. Object Number: 877946  Size: SH
  12. Position body L-pillar trim finish panel molding to vehicle and starting at the rear, push firmly to engage clips.
  13. Install fasteners that attach body L-pillar trim finish panel molding to vehicle.

  14. Object Number: 867848  Size: SH
  15. On all models:
  16. 9.1. Position rear edge of rear seat cushion assembly onto rear compartment ramp.
    9.2. Route seat belt buckles through opening in rear seat cushion assembly.

            Important: Make sure seat belt buckles are not twisted or stuck beneath rear seat cushion assembly.

    9.3. Align retaining rod of set frame wire with the rear compartment dome stop.
    9.4. Push rearward and down on the rear seat cushion assembly to secure wire frame assembly.
    9.5. Pull up on rear seat cushion assembly to verify that it is secure.

    Object Number: 863822  Size: SH
  17. On Coupes:
  18. 10.1. Install rear seat center console.
    10.2. Install fasteners and rear seat center console inserts.

    Object Number: 879992  Size: MH
  19. On all models:
  20. 11.1. Guide folding rear seat back assembly onto center pivot pin.
    11.2. Align outer pivot pin with lead in ramp on bracket and push to set outer pivot pin into position.
    11.3. Engage cargo floor carpet with folding rear seat back assembly.

    Object Number: 877948  Size: SH
  21. On Sedans and Wagons
  22. 12.1. Position folding rear seat back cushion opening side trim assemblies onto folding rear seat back assembly outboard pivot pin.
    12.2. Align and engage folding rear seat back cushion opening side trim assemblies outboard guide pin behind body L-pillar trim finish panel molding assembly and engage upper fastener.

    Object Number: 882900  Size: MF
  23. Pull rear floor pan carpeting forward to expose the floor pan.
  24. Install the left and right side dampers (P/N 21039368) on the rear seat portion of the floor pan (refer to Figure).
  25. Pull back on the carpeting and insulation behind the rear seat to expose the cargo floor.
  26. Install the left and right side dampers (P/N 21035156 - RH, 21035157 - LH) on the floor pan behind where the rear seats are attached.

Parts Requirements

21039368

damper - FLR RR (Right & Left) (Qty -2)

21035157

Damper - FLR R/Sest (Left)

21035156

Damper - FLR R/Seat (Right)

Claim Information

To receive credit for this repair during warranty coverage period, submit a claim through the Saturn Dealer System as follows:

Case Type

Description

Labor Operation Code

Time

VW

Install Insulation Package

T9576

0.7 hrs