The engine model is stamped at the right rear of the top of the cylinder block. The engine serial number is stamped near the engine model number.
| Fig. 6: Engine serial number location — 2.6L engine (other 4-cylinder engines similar) |
| Fig. 7: Engine serial number location — 3.0L engine (3.5L engine similar) |
| Fig. 8: Schematic diagram of the 2.0L G63B engine — 1983–89 vehicles |
| Fig. 9: Schematic diagram of the 2.3L 4D55 diesel engine — 1983–85 vehicles |
| Fig. 10: Schematic diagram of the 2.4L 4G64 engine — 1990–92 vehicles |
| Fig. 11: Schematic diagram of the 2.4L 4G64 engine — 1993–95 vehicles |
| Fig. 12: Schematic diagram of the 2.6L G54B engine — 1983–90 vehicles |
| Fig. 13: Schematic diagram of the 3.0L 6G72 engine — 1989–95 vehicles |
| Fig. 14: Schematic diagram of the 3.5L 6G74 engine — 1994–95 vehicles |