Customer Satisfaction - Engine Connecting Rod Misbuild - Replace Engine

THIS CAMPAIGN BULLETIN IS SENT TO INVOLVED DEALERS ONLY VIA DCS MESSAGE. PLEASE RETAIN THIS COPY AS NO PRINTED BULLETIN WILL BE MAILED TO DEALERS. AN ELECTRONIC COPY IS AVAILABLE ON THE GM SERVICE INFORMATION SYSTEM. ON JULY 30, 2001 ALL VEHICLES INVOLVED IN THIS CAMPAIGN WERE PLACED ON STOP DELIVERY. AFTER THIS CAMPAIGN SERVICE PROCEDURE IS COMPLETED, THE VEHICLES MAY BE RELEASED FROM THE STOP DELIVERY.

General Motors has decided that certain 2001 Chevrolet Silverado 2500HD and GMC Sierra 2500HD model trucks equipped with 6.6L (RPO LB7 - VIN Code 1) engine, may exhibit a condition in which the engine connecting rod bolts may be loose, which can cause an engine knock noise and possible catastrophic damage to the engine.

Dealers are to replace the engine and return the original engine.

Involved are six certain 2001 Chevrolet Silverado 2500HD and GMC Sierra 2500HD model trucks equipped with 6.6L (RPO LB7 - VIN Code 1) engine. The involved Dealer Codes and VINs are listed below.

Important: Dealers should confirm vehicle eligibility through GMVIS (GM Vehicle Inquiry System) prior to beginning campaign repairs.

Involved vehicles have been identified by Vehicle Identification Number. Computer listings containing the complete Vehicle Identification Number, customer name and address data have been prepared, and are being furnished to involved dealers with the campaign bulletin. The customer name and address data furnished will enable dealers to follow up with customers involved in this campaign. Any dealer not receiving a computer listing with the campaign bulletin has no involved vehicles currently assigned.

These dealer listings may contain customer names and addresses obtained from Motor Vehicle Registration Records. The use of such motor vehicle registration data for any other purpose is a violation of law in several states/provinces/countries. Accordingly, you are urged to limit the use of this listing to the follow-up necessary to complete this campaign.

Important: Factory engines required to complete this campaign will be pre-shipped to involved dealers of record. This pre-shipment is scheduled to begin August 3, 2001.

Additional parts, if required, are to be obtained from General Motors Service Parts Operations (GMSPO). Please refer to your "involved vehicles listing" before ordering parts. Normal orders should be placed on a DRO = Daily Replenishment Order. In an emergency situation, parts should be ordered on a CSO = Customer Special Order.

Engine Replacement Procedure

Important: Please take special care when opening the engine crate as this crate will be used to return engines.

1. Refer to the appropriate service manual and replace the engine assembly.
2. Recheck all fluid levels.
3. Install the GM Campaign Identification Label.

Replaced Engine Shipping Procedure

1. Drain all fluids from the replaced engine.
2. Reuse the shipping crate to package the replaced engine.
3. Address the crated engine to:

DMAX, Ltd.

3100 Dryden Road

Moraine, OH 45439

Attn: Norm Tate

4. Call Gary Scoville, DMAX PC&L Department, at (937)297-9745 to arrange shipment of the returned engine.

Place a Campaign Identification Label on each vehicle corrected in accordance with the instructions outlined in this Product Campaign Bulletin. Each label provides a space to include the campaign number and the five (5) digit dealer code of the dealer performing the campaign service. This information may be inserted with a typewriter or a ball point pen.

Put the Campaign Identification Label on a clean and dry surface of the radiator core support in an area that will be visible to people servicing the vehicle. When installing the Campaign Identification Label, be sure to pull the tab to allow the adhesion of the clear protective covering. Additional Campaign Identification Labels for US dealers can be obtained from Dealer Support Materials by calling 1-888-549-6152 (Monday-Friday, 8:00 am to 5:00 pm EST). Ask for Item Number S-1015 when ordering.

Submit a Product Campaign Claim with the information indicated below.

Refer to the General Motors WINS Claim Processing Manual for details on Product Campaign Claim Submission.

Customers will be notified of this campaign on their vehicles by General Motors.

All unsold new vehicles in dealers' possession and subject to this campaign MUST be held and inspected/repaired per the service procedure of this campaign bulletin BEFORE customers take possession of these vehicles.

Dealers are to service all vehicles subject to this campaign at no charge to customers, regardless of mileage, age of vehicle, or ownership, from this time forward.

Customers who have recently purchased vehicles sold from your vehicle inventory, and for which there is no customer information indicated on the dealer listing, are to be contacted by the dealer. Arrangements are to be made to make the required correction according to the instructions contained in this bulletin. This could be done by mailing to such customers a copy of the customer letter accompanying this bulletin. Campaign follow-up cards should not be used for this purpose, since the customer may not as yet have received the notification letter.

In summary, whenever a vehicle subject to this campaign enters your vehicle inventory, or is in your dealership for service in the future, you must take the steps necessary to be sure the campaign correction has been made before selling or releasing the vehicle.