Engine Identification

Engine can be identified by eighth character of Vehicle Identification Number (VIN) which is stamped on a metal pad located near lower left corner of windshield. See ENGINE IDENTIFICATION CODES  table. "Y" in the tenth character of the VIN indicates 2000 model year, and "1" indicates 2001 model year.

Engine can also be identified by a 3-character engine code (RPO code). See ENGINE IDENTIFICATION CODES  table. This code may be stamped on engine. See Fig 1.

Fig 1: Locating Engine Codes

Courtesy of GENERAL MOTORS CORP.