• Welcome to The Truck Stop! We see you haven't REGISTERED yet.

    Your truck knowledge is missing!
    • Registration is FREE , all we need is your birthday and email. (We don't share ANY data with ANYONE)
    • We have tons of knowledge here for your diesel truck!
    • Post your own topics and reply to existing threads to help others out!
    • NO ADS! The site is fully functional and ad free!
    CLICK HERE TO REGISTER!

    Problems registering? Click here to contact us!

    Already registered, but need a PASSWORD RESET? CLICK HERE TO RESET YOUR PASSWORD!

LB7 injector TSB

malibu795

misspleelleer..........
Messages
961
Reaction score
0
Location
south charleston ohio
04 LB7


File In Section: Special Coverage
Bulletin No.: 04039B
Service Bulletin Date: November 2007

SPECIAL COVERAGE
SUBJECT: SPECIAL COVERAGE ADJUSTMENT – INJECTORS - REPLACE
MODELS: 2001-2004 CHEVROLET SILVERADO
2001-2004 GMC SIERRA
2003-2004 CHEVROLET KODIAK
2003-2004 GMC TOPKICK
EQUIPPED WITH 6.6L DURAMAX DIESEL (RPO LB7 - VIN 1) ENGINE
THIS BULLETIN IS BEING REVISED TO ADD 2004 MODEL YEAR TRUCKS.
PLEASE DISCARD SPECIAL POLICY BULLETIN NUMBER 04039A, DATED
OCTOBER, 2006.
CONDITION
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 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
latest version of Technical Service Bulletin 04-06-04-007 and SI).
SPECIAL COVERAGE ADJUSTMENT
This special coverage 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 coverage only covers the above noted failure modes, which
are identified by high fuel return flow rates.
For 2001-02 vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders
on or after May 25, 2004 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 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 coverage 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.
Copyright 2004 General Motors Corporation. All Rights Reserved.

Page 2 November 2007 Bulletin No.: 04039B
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.
VEHICLES INVOLVED
Involved are all 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, and built within the following start of production to end of production VIN breakpoints:
YEAR DIVISION MODEL FROM THROUGH
2001 Chevrolet Silverado
1E100028 1E346644
1F100001 1F213872
1Z100015 1Z100019
2001 GMC Sierra 1E100021 1E346642
1F100010 1F213864
2002 Chevrolet Silverado 2E100009 2E306435
2F100004 2F247804
2002 GMC Sierra 2E100003 2E306345
2F100011 2F247974
2003 Chevrolet Silverado 3E100002 3E381007
3F100003 3F259043
2003 Chevrolet Kodiak 3F500015 3F522532
2003 GMC Sierra 3E100003 3E381124
3F100008 3F259040
2003 GMC TopKick 3F500001 3F900945
2004 Chevrolet Silverado 4E100018 4E221395
4F100004 4F174846
2004 Chevrolet Kodiak 4F500118 4F510079
2004 GMC Sierra 4E100002 4E223355
4F100008 4F174834
2004 GMC TopKick 4F100126 4F510077
PARTS INFORMATION
Parts required to complete this special coverage are to be obtained from General Motors Service
and Parts Operations (GMSPO).
Part Number Description Quantity/Vehicle
97729095* Injector Kit, Dir Fuel (Incls:Injector,Gasket,Seal) 8
97188896 Gasket, Valve Rocker Arm Cover
(Reusable Gasket) As Req'd
97228933 Gasket, F/Injr Fuel Return Pipe 8
97600925 Gasket, F/Injr Fuel Return Pipe 2
94011604 Seal, Water outlet 1
12378521 (US)
88901148 (CN) Sealant As Req’d
97188463 Housing, F/Injr Noz As Req'd
94051259 Seal, F/Injr Noz Hsg (O Ring) As Req'd

Page 3
November 2007 Bulletin No.: 04039B
*P/N 97729095 is only available in a merchandising pack quantity of 4. Current order restriction
limits orders to CSO and availability to 8 injectors per VIN.
CUSTOMER NOTIFICATION
General Motors will notify customers of this special coverage on their vehicles (see copy of typical
customer letter included with this bulletin - actual divisional letter may vary slightly).
SERVICE PROCEDURE
Refer to the latest version of Technical Service Bulletin 04-06-04-007 and Service Information to
perform diagnostics and fuel injector replacement for high fuel return rates.
CLAIM INFORMATION
For vehicles repaired under the terms of this special coverage, submit a claim with the information
indicated below:
IMPORTANT:
A copy of the completed TSB 04-06-04-007 diagnostic worksheet
and other required documentation (e.g. Tech 2 snapshots) must
be included in the box with the returned injectors.
REPAIR PERFORMED
PART
COUNT
PART
NUMBER
PARTS
ALLOW CC-FC
LABOR
OP
LABOR
HOURS
NET
ITEM
Refer to the latest version
of TSB 04-06-04-007 to
diagnose and replace all 8
fuel injectors.
Silverado, Sierra
Kodiak, TopKick
----* MK-95 T5603
8.0
9.7
**
Reimbursement For
Previous Repairs
(Canadian & Export
Dealers/US CAC)
N/A N/A N/A MK-95 T5604 0.2
Administrative
labor hours
***
Courtesy Transportation N/A N/A N/A MK-95 **** N/A *****
*
The "Parts Allowance" should be the sum total of the current GMSPO Dealer net price plus
applicable Mark-Up or Landed Cost Mark-Up (for IPC) for injector parts needed to complete
the repair.
**
The amount identified in the “Net Item” column should represent the sum total of the
current GMSPO Dealer net price plus applicable Mark-Up or Landed Cost Mark-Up (for
IPC) for shop supplies needed to perform the required repairs.
***
The amount identified in the “Net Item” column should represent the customer
reimbursement amount.
****
Submit courtesy transportation using normal labor operations for courtesy transportation as
indicated in the GM Service Policies and Procedures Manual.
*****
The amount identified in the "Net Item" column should represent the actual dollar amount
for courtesy transportation.

Page 4
November 2007 Bulletin No.: 04039B
CUSTOMER REIMBURSEMENT - For US
All customer requests for reimbursement for previous repairs for the special coverage condition
will be handled by the Customer Assistance Center, not by dealers.
A General Motors Special Coverage 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 REIMBURSEMENT - For Canada and Export
Customer requests for reimbursement of previously paid 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:
-
Proof of ownership at time of repair.
-
Original paid receipt confirming the amount of unreimbursed repair expense(s) (including
Service Contract deductibles), a description of the repair, and the person or entity
performing the repair.
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.
COURTESY TRANSPORTATION
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 program 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.
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these 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

We Support
Voluntary Technician technicians have the tools, equipment, 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 your dealer/retailer for information
Certification
on whether your vehicle may benefit from the information.

Page 5 November 2007 Bulletin No.: 04039B
November 2007
Dear General Motors Customer:
As the owner of a 2001-04 model year Chevrolet Silverado; GMC Sierra or 2003-04 Chevrolet
Kodiak; 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 have a condition where the engine fuel injectors may require
replacement because of high fuel return rates due to fuel injector body cracks, or ball seat
erosion, or high pressure seal 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.
Do not take your vehicle to your GM dealer as a result of this letter unless you believe that your
vehicle has the condition as described above.
What We Have Done: 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 seven (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.
What You Should Do: Repairs and adjustments qualifying under this special coverage must be
performed by a General Motors dealer. You may want to contact your GM 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 convenient 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 glove box literature for future reference.
Reimbursement: The enclosed form explains what reimbursement is available and how to
request reimbursement if you have paid for repairs for this condition. Your request for
reimbursement, including the information and documents mentioned on the enclosed form, must
be received by GM by November 30, 2008.
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.
Division Number Text Telephones (TTY)
Chevrolet 1-800-630-2438 1-800-833-2438
GMC 1-866-996-9463 1-800-462-8583
Puerto Rico – English 1-800-496-9992
Puerto Rico – Español 1-800-496-9993
Virgin Islands 1-800-496-9994
GM Commercial Truck 1-800-862-4389
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
 
01-03 LB7

Subject: Service Engine Soon (SES) Light On, DTCs P0087, P0093, P1093, Low Power, No Start, Hard Start, Fuel in Crankcase (Replace All Injectors - New Strategy for High Fuel Return Rates) #04-06-04-007F - (10/21/2005)



Models: 2001-2004 Chevrolet Silverado

2003-2004 Chevrolet Kodiak C4500/C5500 Series

2001-2004 GMC Sierra

2003-2004 GMC Topkick C4500/C5500 Series

with 6.6L Duramax™ Diesel Engine (VIN 1 -- RPO LB7)




--------------------------------------------------------------------------------

This bulletin is being revised to include additional model years and revised warranty information. Please discard Corporate Bulletin Number 04-06-04-007E (Section 06 -- Engine/Propulsion System).


--------------------------------------------------------------------------------

Condition
Some customers may comment on the Service Engine Soon light becoming illuminated. Upon investigation, the technician will find DTCs P0087, P0093 or P1093. Additional customer comments may include a lack of power, a fuel smell on the oil dipstick, fuel in the engine oil, fuel coming out of the crankcase breather, the engine cranks but does not run, or a hard start condition. This condition will not cause an engine misfire. Do not apply this bulletin to any diagnostic other than what is identified in the chart below.

Cause
The fuel injectors have internal conditions that may cause them to return an excessive quantity of fuel to the tank, as well as leak fuel into the crankcase. Due to the return flow and/or leakage, the fuel injection pump may not be able to build up adequate fuel rail pressure.

Correction
Important: Before the technician begins diagnostics and repair, be sure to follow the guidelines in Corporate Service Bulletin Number 03-06-04-036 to avoid fuel system contamination.

Follow current diagnostics for the condition the vehicle is experiencing, then reference the table below. If the diagnostics lead to Fuel System Diagnosis - High Pressure Side, follow the diagnostic until the Fuel Injector Return Flow is measured at each cylinder bank return connection (bank to bank).

Condition
Start with this SI Diagnostic in the Diagnostic Information and Procedures sub-section of the Engine Controls Section

Delayed Start
Hard Start

Lack of Power
Lack of Power, Sluggishness or Sponginess

Engine Cranks but Does Not Run
Engine Cranks but Does Not Run

Fuel in Oil or Fuel leak out of breather
Fuel In Engine Oil in Engine Mechanical

DTC P0087
DTC P0087

DTC P0093
DTC P0093

DTC P1093
DTC P1093


Important: If the SES light is illuminated, follow diagnostics for the DTC as indicated with the Tech 2.

Important: When installing the new fuel injectors, lubricate the inside of the fuel injector sleeve with clean engine oil prior to installing the injector. Do not lubricate the injector or O-ring seal prior to installation.

If fuel return flow on either the right or left cylinder bank is above the initial fuel injector bank return flow value, then replace all eight (8) fuel injectors using the Fuel Injector Replacement procedure in the Engine Controls section of the appropriate Service Manual.

Record all diagnostic data as outlined on a copy of the attached diagnostic worksheet. The diagnostic worksheet and a copy of the repair order is to be returned with the removed injectors.

After replacing injectors, perform the following steps:

Replace the fuel filter element.
Install all disconnected and removed components. Refer to the applicable procedures.
Start and idle the engine. You may have to prime the fuel system before the engine will start.
Connect a scan tool.
Command the fuel pressure control to 160 MPa with a scan tool.
• If the fuel pressure is more than 145 MPa, the system is OK.

• If the fuel pressure is unable to increase to more than 145 MPa. Refer to System Diagnosis -- High Side Pressure in the appropriate Service Manual.

• Be sure to record fuel pressure readings on the diagnostic worksheet.

Parts Information
Part Number
Description
Qty

97729095*
Injector - Fuel
8

97188896
Gasket - Valve Rocker Arm Cover

(Reusable Gasket)
As Req'd

97228933
Gasket - Fuel Injection Fuel Return Pipe and Injector
8

97600925
Gasket - Fuel Injection Fuel Return Pipe
2

94011604
Seal - Water outlet
1

12378521 (U.S.)

88901148 (Canada)
Sealant
1

97188463
Sleeve, Injector
As Req'd

94051259
Seal, O-ring - Injector Sleeve
As Req'd

98017645
Filter, Fuel
1


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

Warranty Information
Important: This labor operation listed below is covered by emissions and is not subject to the $100.00 deductible. Dealer’s will need to use the following information when submitting claims on vehicles still covered under that warranty:

2001-2002 Model Year vehicles may be covered by Special Policy Number 04039. Please refer to Special Policy Number 04039 before submitting any warranty claims.

For vehicles repaired under warranty, use:

Labor Operation
Description
Labor Time

J7801
Injector, Fuel - Diagnose & Replace(2003-2004 Models)
*8.0 hrs

T5603
See Special Policy Number 04039 for published times(2001-2002 Models)

*Note: The labor time represents a reduction over the previously published time due to unnecessary steps in the repair procedure being eliminated, such as removing the radiator shroud and accessory drive belt. Also, the original add time to replace all injectors was overstated, Finally, the number of diagnostic steps have been adjusted because individual injectors are not being diagnosed. The labor time guide will be revised in the near future.


Important: All replaced injectors must be returned to the WPC. IMPORTANT: WAIT TO RECEIVE THE WPC PART RETURN REQUEST PRIOR TO RETURNING THE INJECTORS. Please follow Corporate Bulletin Number 99-00-89-019C that applies to the WPC return procedures. All eight (8) injectors of a single engine must arrive at the WPC boxed or bagged together. A copy of the part request, repair order with technician comments and the completed diagnostic worksheet should be included with the injectors. The tags found in the replacement injector box must be completed and attached to each injector. The WPC will be verifying sets of injectors for high flow rates.
************************************************** ************************************************** ************************************************** ***************************************AND ALSO********************************************** *******************************

Subject: 04039B – Special Coverage Adjustment
Injectors – Replace
Message #: WIR20070463


GM SERVICE AND PARTS OPERATIONS
DCS1911
URGENT - DISTRIBUTE IMMEDIATELY

DATE: November 19, 2007

SUBJECT: 04039B – Special Coverage Adjustment
Injectors – Replace

MODELS: 2001-2004 Chevrolet Silverado
2001-2004 GMC Sierra
2003-2004 Chevrolet Kodiak
2003-2004 GMC Topkick
Equipped with 6.6L Duramax Diesel (RPO LB7 –
VIN 1) Engine

TO: All Chevrolet and GMC Dealers

ATTENTION: Service Manager, Parts Manager and
Warranty Administrator

PRODUCT FIELD ACTION ANNOUNCEMENT

General Motors is announcing Special Coverage Adjustment 04039B today. The total number of VINS involved is 68,183. This bulletin is being revised to add 2004 Model Year trucks. Please discard Special Policy Bulletin Number 04039A, dated October 2006.

Customer Letter Mailing
Customer letter mailing will begin on November 26, 2007.

GMVIS Information
GMVIS information is not loaded for Special Coverages.

Service Information System (SI)
Bulletin 04039B will be available in SI on November 20, 2007.

Campaign Initiation Detail Report (CIDR)
The CIDR is not available for Special Coverages.

PLEASE DOUBLE CLICK ON THE ICON BELOW
THEN SINGLE CLICK ON THE LAUNCH BUTTON
TO VIEW OR PRINT THE BULLETIN




END OF MESSAGE
GM SERVICE AND PARTS OPERATIONS
 
Back
Top