GMCSID
10-25-2004, 06:50 PM
<H1>Information on Revised Fuel Filter for the 6.6L Duramax Diesel #04-06-04-070 - (Oct 1, 2004)</H1>Information on the Revised Fuel Filter for the 6.6L Duramax Diesel
2001-2005 Chevrolet Silverado
2003-2005 Chevrolet Kodiak C4500/C5500
2001-2005 GMC Sierra
2003-2005 GMC TopKick C4500/C5500
with 6.6L Duramax™ Diesel Engine (VINs 1, 2 -- RPOs LB7, LLY)
A revised fuel filter is planned for release that will service all 2001-2005 vehicles with the 6.6L Duramax™ Diesel. Currently, there are two different fuel filters to service the 6.6L Duramax™ Diesel. One filter is used for 2001-2004 vehicles with the 6.6L RPO LB7, and the other filter is used for 2004-2005 vehicles with the 6.6L RPO LLY. The new filter will replace both the current LB7 and LLY filters.
The new filter is the same length as the current LB7 filter, which is approximately 3/4" (19 mm) shorter than the current LLY filter. The new filter can be identified by a ¼" (6 mm) wide black stripe around the circumference of the filter near the top edge. The shorter length of the new filter will not change the recommended fuel filter change interval of 15,000 miles, as recommended in the Owners Manual for both the LB7 and the LLY engines.
Proper fuel filter servicing and the use of clean diesel fuel that is free of water or contaminants is critical for the longevity of fuel system components of a modern direct injected diesel engine. Adherence to the fuel filter change interval of 15,000 miles will help to ensure that the Duramax™ fuel system will be protected from contaminants and the engine will continue to operate as designed. Purchasing fuel from a high volume fuel retailer increases the chances that the fuel is fresh and of good quality. General Motors does not recommend the use of fuel additives. Additional information on the use of fuel additives can be found in Corporate Bulletin Number 03-06-04-017.
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<TD align=left width=778>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 technicians have the equipment, tools, 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 GM dealer for information on whether your vehicle may benefit from the information.
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<TD align=middle width=42>http://service.gm.com/engif/000/999/999/999999994.gif </TD>
<TD align=middle width=167>WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
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© Copyright General Motors Corporation. All Rights Reserved.
2001-2005 Chevrolet Silverado
2003-2005 Chevrolet Kodiak C4500/C5500
2001-2005 GMC Sierra
2003-2005 GMC TopKick C4500/C5500
with 6.6L Duramax™ Diesel Engine (VINs 1, 2 -- RPOs LB7, LLY)
A revised fuel filter is planned for release that will service all 2001-2005 vehicles with the 6.6L Duramax™ Diesel. Currently, there are two different fuel filters to service the 6.6L Duramax™ Diesel. One filter is used for 2001-2004 vehicles with the 6.6L RPO LB7, and the other filter is used for 2004-2005 vehicles with the 6.6L RPO LLY. The new filter will replace both the current LB7 and LLY filters.
The new filter is the same length as the current LB7 filter, which is approximately 3/4" (19 mm) shorter than the current LLY filter. The new filter can be identified by a ¼" (6 mm) wide black stripe around the circumference of the filter near the top edge. The shorter length of the new filter will not change the recommended fuel filter change interval of 15,000 miles, as recommended in the Owners Manual for both the LB7 and the LLY engines.
Proper fuel filter servicing and the use of clean diesel fuel that is free of water or contaminants is critical for the longevity of fuel system components of a modern direct injected diesel engine. Adherence to the fuel filter change interval of 15,000 miles will help to ensure that the Duramax™ fuel system will be protected from contaminants and the engine will continue to operate as designed. Purchasing fuel from a high volume fuel retailer increases the chances that the fuel is fresh and of good quality. General Motors does not recommend the use of fuel additives. Additional information on the use of fuel additives can be found in Corporate Bulletin Number 03-06-04-017.
<TABLE width="100%">
<T>
<TR>
<TD align=left width=778>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 technicians have the equipment, tools, 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 GM dealer for information on whether your vehicle may benefit from the information.
</TD>
<TD align=middle width=42>http://service.gm.com/engif/000/999/999/999999994.gif </TD>
<TD align=middle width=167>WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
</TD></TR></T></TABLE>
© Copyright General Motors Corporation. All Rights Reserved.