GM Service Manual Online
For 1990-2009 cars only

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:

    • A component comparison from the previous year
    • Fastener changes
    • 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

Component Comparison

New rubber isolator on the EVAP purge solenoid.

Secondary Air Injection System added.

Fastener Changes

No fastener changes for 2008.

Torque Values and/or Fastener Tightening Strategies

Updated crankshaft balancer torque.

Changed Engine Specifications

No specification changes for 2008.

New Sealants and/or Adhesives

No new sealants and or adhesives for 2008.

Disassembly and Assembly Procedure Revisions

Updated identification steps in the piston, connecting rod, and bearing installation procedure.

New rear crankshaft oil seal removal and installation procedures.

Engine Mechanical Diagnostic Procedure Revisions

No revisions for 2008.

New Special Tools Required

New rear crankshaft oil seal installer.