CAMPAIGN: FRONT AND REAR SUSPENSION STRUTS MAY BREAK
Subject: FRONT AND REAR SUSPENSION STRUTS
Models: 1990 Pontiac Grand Prix (Fairfax Built Only)
General Motors of Canada has determined that certain Fairfax built 1990 Pontiac Grand Prix model vehicles may have right front or left and/or right rear suspensions struts with low tensile strength at the piston to rod weld. This may result in a fatigue fracture at the piston to rod weld causing the vehicle to experience a "pounding" noise, degradation of ride quality and/or poor wheel alignment. To prevent the possibility of this condition occurring, involved vehicles will either have the right front strut cartridge replaced, or both rear struts inspected and have one or both struts replaced if specific date codes are present.
VEHICLES INVOLVED:
Involved are ONLY certain Fairfax built 1990 Pontiac Grand Prix model vehicles produced within the following VIN breakpoints:
MODEL YEAR PLANT FROM THROUGH INSPECT/REPAIR ----- ---- ------ ------ -------- -------------- "W" 1990 Fairfax LF321925 LF322530 Front Strut, Right Only
"W" 1990 Fairfax Only these 3 VIN's are involved Rear Struts, 1G2WJ51T4LF321591 Left & Right 1G2WJ51T7LF321620 1G2WJ51T8LF321626
All affected vehicles have been identified by the VIN listing provided to involved dealers with this bulletin. Any dealer not receiving a listing was not shipped any of the affected vehicles.
DEALER CAMPAIGN RESPONSIBILITY:
Dealers are to perform this campaign on all involved vehicles at no charge to owners, regardless of kilometres traveled, age of vehicle, or ownership, from this time forward.
Whenever a vehicle subject to this campaign is taken into your new or used vehicle inventory, or it is in your dealership for service, you are to ensure the campaign correction has been made before selling or releasing the vehicle.
Owners of vehicles recently sold from your new vehicle inventory are to be contacted by the dealer, and arrangements made to make the required modification according to instructions contained in this bulletin.
CAMPAIGN PROCEDURE:
Refer to Section 4 of the Service Policies and Procedures Manual for the detailed procedure on handling Product Campaigns. Dealers are requested to complete the campaign on all transfers as soon as possible.
OWNER NOTIFICATION:
All owners of record at the time of campaign release are shown on the attached computer listing and have been notified by first class mail from General Motors. The listings provided are for campaign activity only and should not be used for any other purpose.
PARTS INFORMATION:
Parts required to complete this campaign should be ordered through repair channels, as follows:
Part Number Description Quantity/Vehicle ----------- -------------------------- -------------- 22074850 Front Strut Cartridge (Only for use on vehicles 1 LF321925 - LF322530 - right front strut to be replaced only)
22064188 Strut Assembly - Rear Suspension 0-2 as required (Only for use on the following vehicles) by inspection 1G2WJ51T4LF321591 1G2WJ51T7LF321620 1G2WJ51T8LF321626
PARTS AND LABOUR CLAIM INFORMATION:
Credit for the campaign work performed will be paid upon receipt of a properly completed campaign claim card, RAPID terminal or DCS transmission in accordance with the following:
Repair Code Description Time Allowance ----------- --------------------------- -------------- 1A Inspect Both Rear Struts - No Further Action .3
2A Inspect Both Rear Struts - Replace One Strut .8
3A Inspect Both Rear Struts - Replace Both Struts 1.1
4A Replace Right Front Strut Cartridge 1.2
Time allowance includes 0.1 hour for dealer administrative detail associated with this campaign. Parts credit will be based on dealer net plus 30% to cover parts handling.
SERVICE PROCEDURE:
Front Suspension Only FOR VEHICLES LF321925 - LF322530:
1. Remove and replace right front strut cartridge as instructed on pages 3C-3 through 3C-4 of the 1990 Pontiac Grand Prix Service Manual.
2. Perform front wheel alignment as instructed in section 3A of the 1990 Pontiac Grand Prix Service Manual.
3. Install Campaign Identification Label.
Rear Suspension Only FOR VEHICLES: 1G2WJ51T4LF321591, 1G2WJ5117LF321620, 1G2WJ51T8LF321626
1. Raise vehicle on hoist.
2. Check first three digits of date code on both rear struts (see figure 1). If first three digits for either rear strut are 192 or 193, follow steps 3-5 below. If another date code is present, install campaign identification label and retum vehicle to customer or dealer stock.
3. Remove and replace any rear struts with above date codes. Use procedure on pages 3D-8 through 3D- 10 of the 1990 Pontiac Grand Prix Service Manual.
4. Perform rear wheel alignment as instructed in section 3A of the 1990 Pontiac Grand Prix Service Manual.
5. Install Campaign Identification Label.
INSTALLATION OF CAMPAIGN IDENTIFICATION LABEL
Clean surface of radiator upper mounting panel and apply a Campaign Identification Label. Make sure the correct campaign number is inserted on the label. This will indicate that the campaign has been completed.
Dear General Motors Customer:
General Motors of Canada has determined that certain 1990 Pontiac Grand Prix model vehicles may have right front or left and/or right rear suspension struts with low tensile strengths at the piston to rod weld. This may result in a fatigue fracture at the piston to rod weld causing the vehicle to experience a "pounding" noise, degradation of ride quality, and/or poor wheel alignment.
To prevent the possibility of this condition occurring, your vehicle will either have the front strut cartridge replaced, or have both rear struts inspected and have one or both struts replaced if specific date codes are present. These services will be performed for you at no charge.
Please contact your GM dealer as soon as possible to arrange a service date.
This letter identifies your vehicle. Presentation of this letter to your dealer will assist their Service personnel in completing the necessary correction to your vehicle in the shortest possible time.
Further assistance, if required, may be obtained from our Customer Assistance Centre, toll free, by calling 1-800-263-3777, or if you live in Quebec, 1-800-263-7854.
We are sorry to cause you this inconvenience; however, we have taken this action in the interest of your continued satisfaction with our products.
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.
