Customer Satisfaction - 15,000 Mile (24,000 km) Fuel Filter Change

THIS BULLETIN IS BEING REVISED TO ADD SEPARATE SERVICE PROCEDURES FOR LIGHT DUTY PICKUP AND MEDIUM DUTY TRUCK; AND TO LIST THE LATEST FUEL FILTER PART NUMBER. PLEASE DISCARD ALL COPIES OF 05546.

DUE TO FUEL FILTER AVAILABILITY, CUSTOMER LETTERS WILL BE MAILED IN TWO PHASES. PHASE ONE WILL INCLUDE CUSTOMERS OF 2001-02 MODEL VEHICLES. PHASE TWO WILL INCLUDE CUSTOMERS OF 2003-04 MODEL VEHICLES.

THIS PROGRAM IS IN EFFECT UNTIL SEPTEMBER 30, 2006.

All 2001-04 Chevrolet Silverado; GMC Sierra; 2003-04 Chevrolet Kodiak and GMC TopKick model vehicles, equipped with a 6.6L V8 (RPO LB7 - VIN 1) Diesel engine, may have a condition in which the fuel filter requires strict adherence to the 15,000 mile (24,000 km) fuel filter change interval.

This program will expire on September 30, 2006.

Dealers are to perform a free fuel filter change at the next 15,000 mile (24,000 km) change interval.

Involved are all 2001-04 Chevrolet Silverado, GMC Sierra; 2003-04 Chevrolet Kodiak and GMC TopKick model vehicles, equipped with a 6.6L V8 (RPO LB7 - VIN 1) Diesel engine, and built within these VIN breakpoints:

Important: Dealers should confirm vehicle eligibility through GMVIS (GM Vehicle Inquiry System) prior to beginning program repairs. [Not all vehicles within the above breakpoints may be involved.]

For US and Canada

For GM dealers, with involved vehicles, a Campaign Initiation Detail Report (CIDR) containing the complete vehicle identification number, customer name and address data has been prepared and will be loaded to the GM DealerWorld (US) Recall Information, GMinfoNet (Canada) Recall Reports. Dealers/retailers will not have a report available if they have no involved vehicles currently assigned.

For Export

For dealers with involved vehicles, a Campaign Initiation Detail Report containing the complete vehicle identification number, customer name and address data has been prepared, and is being furnished to involved dealers. Dealers will not receive a report with the bulletin if they have no involved vehicles currently assigned.

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

Parts required to complete this program 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.

Important: The labor time allowance listed in this program is different than that currently published in the labor time guide for performing the same operation. In the near future, the labor time guide will be updated with this new information. The labor operation number and time are the same for the light duty and medium duty trucks specified in this program.

Silverado, Sierra

1. Remove the old fuel filter. Refer to "Fuel Filter Replacement" removal procedure, SI document 740672.
2. Install the new fuel filter, P/N 98017645. Refer to "Fuel Filter Replacement" installation procedure, SI document 740672.

Kodiak, TopKick

1. Remove the old fuel filter. Refer to "Fuel Filter Replacement" removal procedure, SI document 817289.
2. Install the new fuel filter, P/N 98017645. Refer to "Fuel Filter Replacement" installation procedure, SI document 817289.

Notice: Do not retain the used diesel fuel filter for the normal GM policy and procedure parts retention period of 15 days. Dealers are to immediately crush the filter and dispose of the filter in the EPA filter bin at their dealership. Dealers are to follow all hazardous waste disposal practices for their dealership. If dealers have any questions, please contact your local GM representative.

Submit a Product Recall Claim with the information indicated below.

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

General Motors will notify customers of this program on their vehicle (see copy of customer letter included with this bulletin).

Letters will be sent to known owners of record located within areas covered by the US National Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify customers using the attached sample letter.

All unsold used vehicles in dealers' possession and subject to this program must be held and inspected/repaired per the service procedure of this program bulletin before customers take possession of these vehicles.

Dealers are to service all vehicles subject to this program at no charge to customers, regardless of mileage, age of vehicle, or ownership, through September 30, 2006.

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. A copy of the customer letter is provided in this bulletin for your use in contacting customers. Program 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 program enters your vehicle inventory, or is in your dealership for service prior to October 1, 2006, you must take the steps necessary to be sure the program correction has been made before selling or releasing the vehicle.

Dear General Motors Customer:

This notice is sent to inform you that General Motors is conducting a voluntary customer satisfaction program on all 2001-04 Chevrolet Silverado; GMC Sierra; 2003-04 Chevrolet Kodiak and GMC TopKick model vehicles, equipped with a 6.6L Duramax Diesel V8 engine. The purpose of this program is to inform you of a new improved fuel filter and to provide you with one free fuel filter change.

We also want to remind you that the maintenance schedule, as outlined in your vehicle owner’s manual, requires replacement of your vehicle’s Duramax fuel filter every 15,000 miles (24,000 km).

Failure to replace the filter as scheduled could lead to fuel injector or fuel injection system damage caused by contamination.

Damage from fuel contamination, whether introduced via the filling station or through the environment, is aggravated by failure to replace the fuel filter as specified in your vehicle maintenance schedule.

To ensure maximum protection from fuel contamination damage and to help promote proper maintenance intervals, your GM dealer will replace your vehicle’s fuel filter with this improved fuel filter at no charge one time until September 30, 2006.

If you have not replaced your vehicle’s fuel filter in the last 90 days, we recommend you schedule an appointment with your dealer to complete this service at your earliest convenience.

If you have replaced your vehicle’s fuel filter within the last three months, you may want to save this offer for your next regularly scheduled 15,000 mile (24,000 km) fuel filter maintenance, but no later than September 30, 2006.

To limit your inconvenience, we recommend that you contact your GM dealer to schedule an appointment for service. By scheduling an appointment, your dealer can ensure that the necessary parts will be available on your scheduled appointment date.

The enclosed customer reply form identifies your vehicle. Presentation of this form to your dealer will assist in making the necessary correction in the shortest possible time. If you no longer own this vehicle, please let us know by completing the form and mailing it back to us.

If you have any questions or need any assistance, just contact your dealer or the appropriate Customer Assistance Center at the number listed below. The Customer Assistance Center’s hours of operation are from 8:00 AM to 11:00 PM, EST, Monday through Friday.

More information about this program, including answers to frequently asked questions, can be found at the Owner Center at My GMLink. This free online service offers vehicle and ownership related information along with tools tailored to your specific vehicle. To join, visit www.gm.com/recall and enter your vehicle’s 17-character vehicle identification number (VIN), shown on the enclosed customer reply form.

We sincerely hope that this customer satisfaction program does not inconvenience you. We will continue to do our best, throughout your ownership experience, to ensure that your vehicle provides you with many miles of enjoyable driving. Thank you for choosing General Motors and Duramax.

General Motors Corporation

Enclosure

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