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.
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HOMESERVICE MANUALSPONTIAC1987FIERO BASE, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEADJUSTMENTTUNE-UP - V6IDENTIFICATIONVEHICLE IDENTIFICATION NUMBER CODE
1987 Pontiac Fiero Base, Automatic
Vehicle Identification Number Code
1987 Pontiac Fiero Base, AutomaticSECTION Vehicle Identification Number Code
Engines may be identified by the 8th character of Vehicle Identification Number (VIN). The VIN is located at the left front corner of instrument panel and is visible through windshield.
VIN ENGINE CODES
| Application | Code | ||||||
|---|---|---|---|---|---|---|---|
| 2.8L (173") MFI (1) | S, W or 9 | ||||||
| 3.0L (181") MFI (1) | L | ||||||
| 3.8L (231") 2-Bbl. | A | ||||||
| 3.8L (231") SFI (2) | 3 | ||||||
| 3.8L (231") SFI Turbo (2) | 7 | ||||||
| 4.3L (262") TBI (3) | Z | ||||||
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RENDER: 1.0x
NO RELATED
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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.