K 3500 Truck 4WD V8-6.6L DSL Turbo VIN 1 (2001)
Fuel Pressure Control Module: Technical Service Bulletins
Fuel Injector Module - Non Serviceable Connectors
File In Section: 06 - Engine/Propulsion System
Bulletin No.: 01-06-04-035
Date: June, 2001
INFORMATION
Subject:
Non-Serviceable Connectors on the Fuel Injector Control Module Harness for the Duramax 6600 Diesel Engine
Models:
2001 Chevrolet and GMC C/K Models (Silverado and Sierra 2500 HD and 3500) with 6.6 L Engine (VIN 1 - RP0 LB7)
The direct fuel injection system on the Duramax 6600 Diesel engine utilizes a high voltage, high current system to operate the injectors. Initial opening
of the injector requires 93 volts at approximately 20 amps. Circuit integrity is monitored by the fuel injector control module and is critical for proper
injector operation. Repair of the high voltage injector circuit connectors is not advised.
The following connectors should be serviced by replacing the fuel injector control module harness assembly:
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Fuel Injector Control Module Connectors
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Fuel Injector Connectors (harness side) The fuel injector jumper harnesses should be serviced by replacement of the jumper harness.
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