Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Engine Identification
Engine may be identified by the eighth character of Vehicle Identification Number (VIN), stamped on plate on top of instrument panel near lower left corner of windshield. If eighth character is B, vehicle is equipped with 4.9L V8 PFI engine. Vehicle model year may be identified by the tenth character of VIN. If tenth character is M, vehicle model year is 1991.
| Application | Engine Code | VIN Code |
|---|---|---|
| 4.9L V8 PFI | L26 | B |
Engine model year may also be identified by the second character of engine data number. Engine data number is stamped on plate on left side of cylinder block-to-transaxle flange. See Fig 1. If second character of engine data number is M, engine model year is 1991. Fourth through ninth characters are the engine serial number, which may be needed when ordering parts.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.