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 LS2 engine utilize metric threads. |
| • | Cylinder head, connecting rod, crankshaft balancer, and main bearing cap bolts now apply a torque angle tightening strategy. |
| • | Certain fasteners should not be used again. Bolts, studs, or other fasteners that must be replaced will be called out in the specific service procedure. |
| • | A second design camshaft retainer and bolts are optional. |
New Sealants and/or Adhesives
Sealers and adhesives, as required, are identified within the specific service procedures. Refer to
Adhesives, Fluids, Lubricants, and Sealers
.
Disassembly and Assembly Procedure Revisions
| • | The piston and pin are to be serviced as an assembly. |
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
Diagnostic Starting Point - Engine Mechanical
.
New Special Tools Required
No new special tools have been designed for this application.
A Component Comparison from the Previous Year
| • | The 6.0L LS2 engine replaces the 5.7L LS6. |
| • | The camshaft position (CMP) sensor has been relocated to the front of engine, using the front surface of the camshaft sprocket as the target wheel. |
| • | The knock sensors have been relocated to the sides of the engine block and are flat-response type sensors. |
| • | A second design camshaft retainer and bolts are optional. |
