NHTSA ID Number: 10246566
Manufacturer Communication Number: 00064H
TSB/Document Date: 2023-12-11
Summary
Special Coverage Adjustment ? Electronic Diesel-Fuel Injection Pump Failure ? Repair/Replace
Bulletin No.: 00064H
Date: July 2014
Service Bulletin
SPECIAL COVERAGE
SUBJECT:
Special Coverage Adjustment – Electronic Diesel-Fuel Injection Pump Failure
– Repair/Replace
MODELS:
1994-2002 Chevrolet
and GMC C/K, G and P Model Trucks; and 1997-1998 B7
School Bus Chassis, Equipped with a 6.5L Diesel Engine (RPO L49 – VIN Code
P; RPO L56 – VIN Code S; L65 – VIN Code F)
This bulletin is being revised to remove the diesel injection pump from part restriction. Pumps are
to be ordered from CCA using the normal ordering procedures. Please discard all copies of bulletin
00064G.
CONDITION
Some 1994-2002 Chevrolet and GMC C/K, G and P model trucks; and 1997-1998 B7 school bus
chassis, equipped with a 6.5L diesel engine (RPO L49-VIN Code P; RPO L56-VIN Code S; or RPO
L65-Vin Code F), may experience a failure of the electronic diesel fuel injection pump.
SPECIAL COVERAGE ADJUSTMENT
This special coverage covers the condition described above for a period of eleven (11) years or
120,000 miles (193,000 km), whichever occurs first, from the date the vehicle was originally placed
in service, regardless of ownership. Damage from poor quality or incorrect grade diesel fuel, and
gasoline or water contamination, is not covered under the terms of the 6.5L diesel warranty.
This special policy applies ONLY to electronic diesel-fuel injection pump repairs and/or replacement
as a result of injection pump failure. The pump repair or replacement will be made at no charge
to the owner. This Special Coverage does not cover: glow plugs, turbocharger wear, low
compression engines or PCM/PCM wiring conditions.
Fuel quality may cause driveability problems such as hesitation, lack of power, stall, no start, etc.
For best results, use Number 2-D diesel fuel year-round (above and below freezing conditions) as
oil companies blend Number 2-D fuel to address climate differences. Number 1-D diesel fuel may
be used in very cold temperatures (when it stays below -18°C (0°F); however, it will produce power
and fuel economy loss. The use of Number 1-d fuel in warm or hot climates may result in stalling,
poor starting when the engine is hot and may damage the fuel injection system. For further detail
related to Fuel System Specifications, refer to SI.
Copyright 2014 General Motors. All Rights Reserved.
Page 2
July 2014
Bulletin No.: 00064H
VEHICLES INVOLVED
Involved are all 1994-2002 Chevrolet and GMC C/K, G and P model trucks, and 1997-1998 B7
school bus chassis, equipped with 6.5L diesel engine (RPO L49–VIN Code P; RPO L56–VIN Code
S or RPO L65–VIN Code F) and built from Start of Production to End of Production, which begins
and ends with the following VIN breakpoints:
Year
1994
1994
1994
1994
1994
1994
1994
1994
1994
1994
1995
1995
1995
1995
1995
1995
1995
1995
1995
1995
1995
1995
1995
1995
1995
1996
1996
1996
1996
1996
1996
1996
1996
1996
1996
1996
Division
Chevrolet
Chevrolet
Chevrolet
Chevrolet
Chevrolet
GMC
GMC
GMC
GMC
GMC
Chevrolet
Chevrolet
Chevrolet
Chevrolet
Chevrolet
Chevrolet
Chevrolet
Chevrolet
GMC
GMC
GMC
GMC
GMC
GMC
GMC
Chevrolet
Chevrolet
Chevrolet
Chevrolet
Chevrolet
Chevrolet
Chevrolet
Chevrolet
GMC
GMC
GMC
Model
C/K
C/K
C/K
G
P
C/K
C/K
C/K
G
P
C/K
C/K
C/K
C/K
C/K
C/K
G
P
C/K
C/K
C/K
C/K
C/K
C/K
G
C/K
C/K
C/K
C/K
C/K
C/K
G
P
C/K
C/K
C/K
Plant
Pontiac East
Janesville
Oshawa
Flint
Detroit
Pontiac East
Janesville
Oshawa
Flint
Detroit
Pontiac East
Flint
Silao
Janesville
Fort Wayne
Oshawa
Flint
Detroit
Pontiac East
Flint
Silao
Janesville
Fort Wayne
Oshawa
Flint
Pontiac East
Flint
Silao
Janesville
Fort Wayne
Oshawa
Wentzville
Detroit
Pontiac East
Flint
Silao
From
RE100001
RJ100001
R1100005
RF100012
R3302491
RE5000001
RJ500608
R1500001
RF500014
R3502011
SE100004
SF000001
SG100468
SJ100014
SZ140203
S1100009
SF100013
S3300002
SE500003
SF000003
SG500007
SJ500008
SZ529887
S1500004
SF500001
TE100004
TF000002
TG100001
TJ100002
TZ100005
T1100021
T1000028
T3300001
TE500001
TF000016
TG500002
Through
RE314500
RJ447579
R1328172
RF189802
R3329026
RE566607
RJ772059
R1593861
RF536298
R3502248
SE284717
SF253488
SG120859
SJ464646
SZ289914
S1307916
SF251904
S3332496
SE550508
SF558851
SG507987
SJ757084
SZ571159
S1592733
SF558919
TE269737
TF021516
TG170268
TJ427468
TZ234225
T1257012
T1044573
T3316738
TE555590
TF021520
TG522296
Page 3
Year
1996
1996
1996
1996
1997
1997
1997
1997
1997
1997
1997
1997
1997
1997
1997
1997
1997
1997
1997
1997
1997
1998
1998
1998
1998
1998
1998
1998
1998
1998
1998
1998
1998
1998
1998
1998
1999
1999
1999
1999
1999
July 2014
Division
GMC
GMC
GMC
GMC
Chevrolet
Chevrolet
Chevrolet
Chevrolet
Chevrolet
Chevrolet
Chevrolet
Chevrolet
Chevrolet
GMC
GMC
GMC
GMC
GMC
GMC
GMC
GMC
Chevrolet
Chevrolet
Chevrolet
Chevrolet
Chevrolet
Chevrolet
Chevrolet
Chevrolet
GMC
GMC
GMC
GMC
GMC
GMC
GMC
Chevrolet
Chevrolet
Chevrolet
Chevrolet
Chevrolet
Model
C/K
C/K
C/K
G
C/K
C/K
C/K
C/K
C/K
C/K
G
P
B7
C/K
C/K
C/K
C/K
C/K
C/K
G
B7
C/K
C/K
C/K
C/K
C/K
G
P
B7
C/K
C/K
C/K
C/K
C/K
G
B7
C/K
- Restores fuel economy
- Stabilizes ethanol
- Maximizes horsepower
- Improves responsiveness
- For use in both gasoline and diesel engines
Last update on 2026-06-23 / Affiliate links / Images from Amazon Product Advertising API
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TSB/Document ID: 00064H
Replacement Service Bulletin Number:
MFR Communication Date: 2014-07-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: FUEL SYSTEM, DIESEL
MFR Component System:
MFR Component Subsystem:
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