New Product Information. Generic Unit Repair 2006

For 1990-2009 cars only

Makes 🢒 Generic 🢒 2006 🢒 Unit Repair 🢒 Engine 🢒 Engine Mechanical - 6.0L 🢒 New Product Information

The purpose of New Product Information is to highlight, or indicate, important product changes from the previous model year.

Changes may include one or more of the following items:

•	Torque values and/or fastener tightening strategies

•	Changed engine specifications

•	New sealants and/or adhesives

•	Disassembly and assembly procedure revisions

•	Engine mechanical diagnostic procedure revisions

•	New special tools required

•	A component comparison from the previous year

Torque Values and/or Fastener Tightening Strategies

•	All fasteners and threaded holes on the 6.0 liter engine utilize metric threads.

•	All M11 cylinder head bolts are the same length and have a common torque/angle tightening strategy. Refer to Fastener Tightening Specifications .

Changed Engine Specifications

Revised engine specifications for the L76 application have been added. Refer to Engine Mechanical Specifications .

Disassembly and Assembly Procedure Revisions

Displacement on demand (DoD) valve lifters must be installed into the proper locations in order for the DoD engine control system to operate as designed. Refer to Valve Lifter Installation .

Engine Mechanical Diagnostic Procedure Revisions

•

All diagnosis on a vehicle should follow a logical process. Strategy based diagnostics is a uniform approach for repairing all systems. The diagnostic flow may always be used in order to resolve a system condition. The diagnostic flow is the place to start when repairs are necessary. For a detailed explanation, refer to Strategy Based Diagnosis in General Information or Diagnostic Starting Point - Engine Mechanical .

•	New test procedures have been developed for testing the DoD engine control system. Refer to Displacement on Demand (DoD) System Diagnosis .

New Special Tools Required

•	EN-46999 Displacement on Demand Tester has been developed for both in-vehicle and bench testing of the valve lifter oil manifold (VLOM) assembly. Refer to Displacement on Demand (DoD) System Description and Displacement on Demand (DoD) Valve Lifter Oil Manifold Diagnosis and Testing .

•	EN-46999-1 Displacement on Demand Tester Air Adapter has been developed for use with the EN-46999 when performing VLOM bench testing. Refer to Displacement on Demand (DoD) Valve Lifter Oil Manifold Diagnosis and Testing .

•	EN-46999-5 Displacement on Demand Tester Harness - Small Block V8 has been developed for use with the EN-46999.

•	J 21867-16 Oil Pressure Adapter has been developed for use when testing the DoD oil pressure relief valve. Refer to Displacement on Demand (DoD) Oil Pressure Relief Valve Diagnosis and Testing .

•	EN-47971 has been developed for use with the new design oil filter, with internal bypass valve, on VE applications.

•	Refer to Special Tools .

A Component Comparison from the Previous Year

•	The 6.0 liter V8 engine (RPO L76) replaces the 5.7 liter V8 engine (RPO LS1).

•	The L76 application includes the General Motors Displacement-on-Demand (DoD) engine control system. Refer to Displacement on Demand (DoD) System Description .

•	The engine valley cover has been replaced by the VLOM assembly.

•	The valve lifters for cylinders 1, 4, 6, and 7 are redesigned for use with the DoD engine control system.

•	The knock sensors have been removed from the engine valley and are now located on each side of the engine block. The knock sensors are now the flat-response type design.

•	The camshaft position (CMP) sensor has been removed from the rear of the engine and is now located in the front cover.

•	The camshaft sprocket has added features to provide camshaft position signal.

•	All applications use full-floating design piston pins.

•	A crankshaft balancer washer has been added. The washer installs onto the front of the crankshaft and is positioned between the balancer and crankshaft sprocket. Refer to Crankshaft Balancer Installation .