New Product Information for Chevrolet TrailBlazer - 4WD 2003
The purpose of New Product Information is to highlight or indicate
important new features for the service community.
Changes may include one or more of the following items:
| • | Torque values and/or fastener tightening strategies |
| • | New sealants and/or adhesives |
| • | Disassembly and assembly procedure revisions |
| • | Engine mechanical diagnostic procedure revisions |
New Sealants and/or Adhesives
| • | U.S. and Canadian SPO part numbers |
| • | 3-Bond sealant P/N 12378521 |
New Features on the LL8 Engine
| • | Pan-axle design oil pan |
| • | Exhaust camshaft position actuator |
| • | Exhaust camshaft position actuator valve |
| • | Jack bolts on the front cover, rear cover, and oil pan |
Engine Features
| • | Powder metal connecting rods |
| • | Full floating piston pins |
| • | Lost foam casted aluminum block and head |
| • | Composite plastic camshaft cover |
| • | Electronic Throttle Control - ETC |
| • | Composite intake manifold |
| • | Bridge/bearing beam - stiffener ladder |
| • | Stainless steel fuel rail |
| • | Coil-on-plug ignition system |
New Special Tools Required
No change from previous year.
