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Engine Identification: Notes

NOTE: For engine repair procedures not covered in this article, see ENGINE OVERHAUL PROCEDURES - GENERAL INFORMATION article in the GENERAL INFORMATION section.

Engine may be identified by the Vehicle Identification Number (VIN) at top of instrument panel near windshield on left side of vehicle and visible from outside. VIN number is also stamped on Safety Certification Decal on left front door lock face panel and on Engine Identification Label on valve cover.

The VIN number contains 17 characters. The 8th character identifies the engine and the 10th character identifies the model year. To determine if the engine is High Swirl Combustion (HSC) or High Swirl Output (HSO), use the emission calibration number label located on the driver's door or pillar.

ENGINE IDENTIFICATION CODES

Application VIN Code
2.3L (140") 4-Cylinder
HSC MPFI X
HSO MPFI S
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