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

The engine oil cooler has been deleted.

The EGR system has been deleted.

Fastener Changes

No fastener changes for 2005.

Torque Values and/or Fastener Tightening Strategies

Lower intake manifold strategy is now:

    • Center bolts:
       - First Pass 7 N·m (62 lb in)
       - Final Pass 13 N·m (115 lb in)
    • Corner bolts:
       - First Pass 13 N·m (115 lb in)
       - Final Pass 25 N·m (18 lb ft)

Changed Engine Specifications

A new Engine Mechanical Specifications chart has been implemented into the 2005 service manual.

New Sealants and/or Adhesives

Engine sealers have been revised.

Disassembly and Assembly Procedure Revisions

No Revisions for 2005.

Engine Mechanical Diagnostic Procedure Revisions

No Revisions for 2005.

New Special Tools Required

No special tools have been added for 2005.