CAMPAIGN: LUMINA Z34, CUTLASS SUPREME AND GRAND PRIX 3.4L

ATTENTION:

SERVICE MANAGER - PLEASE REVIEW THIS INFORMATION WITH YOUR PERSONNEL

SUBJECT: 1991 CHEVROLET LUMINA Z34, PONTIAC GRAND PRIX AND OLDSMOBILE CUTLASS SUPREME MODEL VEHICLES WITH 3.4L ENGINES - CAMPAIGN 1N08)

Notice: This message is the full campaign notice, no follow-up mailing is anticipated.

This is a notice to immediately stop delivery of all 1991 Chevrolet Lumina Z34, Pontiac Grand Prix and Oldsmobile Cutlass Supreme models with 3.4L (LQ1) engine with the attached VINS. The engine in these vehicles may have exhaust valves that were not chrome plated. Engine damage could eventually result without corrective action. Therefore, the engines should be replaced before delivery.

A representative from the GM St. Catharine's Engine Plant will be contacting you to arrange shipment of necessary exchange engines. Please follow the directions for exchange as specified in GM Service Bulletin 91-634-100.

You do not have to contact the Technical Assistance Centre (TAC) for authority for this exchange unless you experience a problem.

Remember to install a Campaign I.D. Label upon completion of the campaign action.

Vehicles Involved Dealer ------------------ ------ 2G1WP11X3M9193790 82172 2G1WP11X2M9193411 84782 1G2WT51XXMF264716 95535 1G2WP11X7MF264816 86927 1G2WP11X4MF264952 86661 1G2WP11XXMF264986 95145 1G3WS51X2MD361550 95057 1G3WS51X6MD361325 86929 1G3WS51X7MD361950 81079

PARTS AND LABOUR CLAIM INFORMATION:

Credit for the campaign work performed will be paid upon receipt of a properly completed campaign claim card or DCS transmission in accordance with the following:

Repair Code Description Time Allowance ----------- ----------------------- ------------- 2A Replace Engine Assembly 7.8

Time allowance includes 0.1 hour for dealer administrative detail associated with this campaign. An allowance of $283.00 has been included in both repair codes for Parts Handling plus the cost of miscellaneous items such as engine oil and engine coolant.

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.