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 MANUALSPONTIAC19916000 SEREPAIR AND DIAGNOSISENGINE PERFORMANCEAPPLICATIONENGINE/VIN IDENGINE CODE LOCATION
1991 Pontiac 6000 SE
Engine Code Location
1991 Pontiac 6000 SESECTION Engine Code Location
The locations of the stamped codes for each particular engine are listed below. Refer to MODEL COVERAGE & IDENTIFICATION .
ENGINE CODE LOCATION
| Engine Code | Location(s) |
|---|---|
| LB4 | On right front of engine, below cylinder head. On engine block, near oil filter. |
| LB9 | On engine block, near oil filter. |
| LD2 | On engine block, near starter. |
| LG0 | On engine block, near starter. |
| LG5 | On engine block, near starter. |
| LG7 | On left front of engine block, below cylinder head. |
| LH0 | On engine block, near starter. |
| LKO | Information not available. |
| LLO | Information not available. |
| LM3 | On Left rear of engine block, on bellhousing flange. |
| LN3 | On left front of engine, below cylinder head. |
| LO3 | On right front of engine, below cylinder head. On engine block, near oil filter. |
| LO5 | On left front of engine block, below cylinder head. On engine block, near oil filter. |
| LQ1 | On engine block, near starter. |
| LR8 | On left front of engine block, below cylinder head. |
| LT2 | On left rear of engine block, on edge of flange casting. |
| LT3 | On left rear of engine block, on edge of flange casting. |
| LV2 | On left front of engine block, below cylinder head. On engine block, near oil filter. |
| L26 | On left rear of engine block, below cylinder head. |
| L27 | On left front of engine, below cylinder head. |
| L68 | On left rear of engine block, below cylinder head mating surface. |
| L98 | On engine block, near starter. On right front of engine block, below cylinder head. |
RENDER: 1.0x
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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.