REAR BUCKET SEAT SQUEAK/RATTLE INSTALL NEW SEAT BUMPERS

Subject: REAR BUCKET SEATS SQUEAK, RATTLE AND SEAT BACK LOOSENESS (INSTALL NEW BUMPER/APPLY LUBRICANT)

Models Affected: 1990-91 TRANS SPORT

This bulletin cancels and replaces bulletin 91-10-26A issued 5191. Please discard bulletin 91-10-25. This bulletin has been revised to add a sentence to condition 1, add (Figure 1) to correction 1, add the name Lubriplate and (Figure 2) to to correction 2 and to add Seat Back Looseness to the title.

This bulletin addresses two areas of Squeak/Rattle conditions on the rear bucket seats. Both areas should be investigated as a possible source of noise on all rear bucket seats.

Conditions:

------------ 1. Rattle type noise with vehicle in motion and rear seats are not occupied and seat back is in upright position. The seat back may also have a "loose" feel when in the upright and locked position. 2. Squeak or chirp noise from rear leg latch plate and handle.

Cause:

-------- 1. Rubber bumper located on left side of seat at folding hinge (See Figure 1) missing or deteriorated. 2. Insufficient or lack of lubrication on latch plate.

Correction:

------------- Remove rear seat from vehicle:

1. Install new bumper, P/N 12508731. (Figure 1) 2. Apply GM Lubriplate lubricant, P/N 1050109 or equivalent to both ends of latch plate on both sides of the seats. (Figure 2).

Part is currently available from GMSPO.

Labor Operation Number: T1733

Labor Time: 0.2 hour Per Seat

Trouble Code: 92

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.