Special Coverage Adjustment - Injectors-Replace

THIS BULLETIN IS BEING REVISED TO ADD 2004 MODEL YEAR TRUCKS. PLEASE DISCARD SPECIAL POLICY BULLETIN NUMBER 04039A, DATED OCTOBER, 2006.

Some customers of 2001-04 model year Chevrolet Silverado; GMC Sierra; 2003-04 Chevrolet Kodiak and GMC TopKick vehicles, equipped with a 6.6L Duramax Diesel (RPO LB7 - VIN Code 1) engine, may experience vehicle service engine soon (SES) light illumination, low engine power, hard start, and/or fuel in crankcase, requiring injector replacement, as a result of high fuel return rates due to fuel injector body cracks, ball seat erosion, or high pressure seal extrusion (refer to Corporate Bulletin Number 04-06-04-007G and SI).

This special policy covers the condition described above for a period of 7 years or 200,000 miles (320,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. The repairs will be made at no charge to the customer.

Important: This special policy only covers the above noted failure modes, which are identified by high fuel return flow.

For 2001-2002 vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after May 25, 2004, are covered by this special policy and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to May 25, 2004 must be submitted to the Service Contract provider.

For 2003 vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after October 10, 2006 are covered by this special policy and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to October 10, 2006 must be submitted to the Service Contract provider.

For 2004 vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after November 19, 2007 are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to November 19, 2007 must be submitted to the Service Contract provider.

Involved are all 2001-04 model year Chevrolet Silverado, GMC Sierra; 2003-2004 Chevrolet Kodiak and GMC TopKick vehicles equipped with a 6.6L Duramax Diesel (RPO LB7 - VIN Code 1) engine and built within the following start of production to end of production VIN breakpoints:

Parts required to complete this special policy are to be obtained from General Motors Service Parts Operations (GMSPO).

*P/N 97729095 is only available in a merchandising pack quantity of 4. Current order restriction limits availability to 8 injectors per VIN.

Customers will be notified of the special policy on their vehicles by General Motors (see copy of typical customer letter included with this bulletin -- actual divisional letter may vary slightly).

Refer to the latest version of Corporate Bulletin Number  04-06-04-007G and Service Information to perform diagnostics and fuel injector replacement for high fuel return rates.

The General Motors Courtesy Transportation program is intended to minimize customer inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited Warranty. The availability of courtesy transportation to customers whose vehicles are within the warranty coverage period and involved in a product recall is very important in maintaining customer satisfaction. Dealers are to ensure that these customers understand that shuttle service or some other form of courtesy transportation is available and will be provided at no charge. Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy Transportation guidelines.

For vehicles repaired under the terms of this special policy, submit a claim with the information indicated below:

Important: A copy of the completed TSB 04-06-04-007G diagnostic worksheet and other required documentation (e.g. Tech 2® snapshots) must be included in the box with the returned injectors.

All customer requests for reimbursement for previous repairs for the special policy condition will be handled by the Customer Assistance Center, not by dealers.

A General Motors Special Policy Customer Reimbursement Procedure form is included with the customer letter.

Important: Refer to the GM Service Policies and Procedures Manual, section 6.1.12, for specific procedures regarding customer reimbursement and the form.

Customer requests for reimbursement for previous repairs to correct high fuel return rate by replacing fuel injectors in 2004 model year trucks are to be submitted prior to or by November 30, 2008. Repairs must have occurred within the 7 years of the date the vehicle was originally placed in service, or 320,000 km, whichever occurs first.

When a customer requests reimbursement, they must provide the following:

If the work was done by someone other than a GM dealership, the amount of reimbursement will be limited to the amount that the repair would have cost GM to have it completed by a GM dealership.

Dear General Motors Customer:

As the owner of a 2001-04 model year Chevrolet Silverado or GMC Sierra or 2003-04 Chevrolet Kodiak, or GMC TopKick vehicle, your satisfaction with our product is very important to us.

This letter is intended to make you aware that some 2001-04 model year Chevrolet Silverado, GMC Sierra; 2003-04 Chevrolet Kodiak and GMC TopKick vehicles, equipped with a 6.6L Duramax diesel engine, may experience vehicle service engine soon (SES) light illumination, low engine power, hard start, and/or fuel in crankcase, requiring injector replacement, as a result of high fuel return rates due to fuel injector body cracks, ball seat erosion or high pressure extrusion. Symptoms of these conditions include illumination of the service engine soon (SES) light, low engine power, hard start, and/or fuel in the crankcase.

This is not a recall. Do not take your vehicle to your dealer as a result of this letter unless you believe that your vehicle has the condition as described above.

General Motors is providing owners with additional protection for the fuel injectors. If this condition occurs on your 2001-04 model year Chevrolet Silverado, GMC Sierra; 2003-04 Chevrolet Kodiak or GMC TopKick vehicle within 7 years of the date your vehicle was originally placed in service or 200,000 miles (320,000 km), whichever occurs first, the condition will be repaired for you at no charge . Diagnosis or repair for conditions other than the condition described above is not covered under this special coverage program.

Repairs and adjustments qualifying under this special coverage must be performed by a General Motors dealer. You may want to call the service department at your dealer to find out how long they will need to have your vehicle so that you may schedule the appointment at a time that is a convenient time for you. This will also allow your dealer to order parts if they are not already in stock. Keep this letter with your other important glovebox literature for future reference.

The enclosed form explains what reimbursement is available and how to request reimbursement if you have paid for repairs for the special policy condition.

If you have any questions or need any assistance, must 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.

We are sorry for any inconvenience you may experience; however we have taken this action in the interest of your continued satisfaction with our products.

General Motors Corporation

Enclosure

04039B