Okay, let me get this straight: '01-03 LB7 inectors are under a 200,000 mile warranty. '04 LB7s are not,right? My dad has an '04 LB7 with bad injectors. Went to the dealer and they claim his are covered to only 100,000 miles. He has 140,000 on it now. Is this correct? They quoted him $3200 to replace all eight injectors. If this is true why doesn't gm cover the early '04 models? they are the exact same engine as the '03s....

It's true.
Ask to speak with the area rep and call GM. Some people have had some luck getting GM to help out.

Give them this, and call the area rep and start complaining that an LB7 is an LB7.

Some folks are hopeing the 04's will get covered this year.

Document ID# 1715916
2002 Chevrolet Chevy K Silverado - 4WD



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).
<A href="http://service.gm.com/servlets/BlobShtml?ShtmlFile=1715916&psdid=271&evc=sm#ss1-1715916">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.
<A href="http://service.gm.com/servlets/BlobShtml?ShtmlFile=1715916&psdid=271&evc=sm#ss2-1715916">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.
<A href="http://service.gm.com/servlets/BlobShtml?ShtmlFile=1715916&psdid=271&evc=sm#ss3-1715916">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:
<LI type=1>Replace the fuel filter element. <LI type=1>Install all disconnected and removed components. Refer to the applicable procedures. <LI type=1>Start and idle the engine. You may have to prime the fuel system before the engine will start. <LI type=1>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.
<A href="http://service.gm.com/servlets/BlobShtml?ShtmlFile=1715916&psdid=271&evc=sm#ss4-1715916">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.
<A href="http://service.gm.com/servlets/BlobShtml?ShtmlFile=1715916&psdid=271&evc=sm#ss5-1715916">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.


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Thank you for all of your help....

I was able to get gm to cover the parts on a 04 but it was because the service advisor went to bat for me since we send so much work his way.

Most dealers and service advisors don't want to warranty anything and there has been people who have had them deny injectors on there 01-03 and they ended going to a diffrent dealer that will cover them.

Just got the word my #7 injector was bad. Dealer rep says he has to call to get ok to replace them all. Are you saying I will have to pay a $100 deductable?

hundred bucks beats the crap out of 4200 bucks.

What year do you have? What injectors are we tzalking about? What engine do you have?

We need more info Ironhrse44, for all we know you are driving a toyota!