A Component Comparison from the Previous Year
WARNING: This page is about a different car, the 2003 GMC Envoy XL and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
- A new 5.3L engine has been developed and is identified as RPO LM4 VIN P.
- 5.3L LM4 engines use an aluminum engine block.
- Certain applications use a multi-layer steel design cylinder head gasket.
- A new electronic throttle body will be used on all applications.
- The exhaust gas recirculation (ERG) system has been removed.
- A new aluminum oil pan which accommodates the pan axle
- All 2003 applications use a piston with a graphite coated skirt.