Engine ID and VIN Derivative Location

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Engine ID and VIN Derivative Location 4.2L L6

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Transmission ID Location
2	Engine ID Location
3	The first digit identifies the engine build location - All first digits will be a V, this engine is only being built at Flint Engine South
4	The second digit identifies the build year
5	The third and fourth digits identify the build month
6	The fifth and sixth digits identify the build date
7	The seventh through tenth digits identify the engine build sequence

Fig 2: Engine Identification Location

Courtesy of GENERAL MOTORS CORP.

The vehicle identification number (VIN) is located on the left side rear of the engine block (1) and is typically a nine digit number stamped or laser-etched onto the engine at the vehicle assembly plant.

The first digit identifies the division.
The second digit identifies the model year.
The third digit identifies the assembly plant.
The fourth through ninth digits are the last six digits of the VIN.