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 MANUALSCHEVROLET1990CAVALIER BASE, 4D SEDAN, AUTOMATIC, 125C/MD9REPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEAPPLICATIONENGINE/VIN IDENGINE CODE LOCATION
1990 Chevrolet Cavalier Base, 4D Sedan, Automatic, 125C/MD9
Engine Code Location
1990 Chevrolet Cavalier Base, 4D Sedan, Automatic, 125C/MD9SECTION Engine Code Location
The locations of the stamped codes for each particular engine are listed below. Refer to 1990 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 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. |
| LH3 | On left rear of engine block, below cylinder head mating surface. |
| LM3 | On right rear of engine block, below cylinder head. |
| 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. |
| 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. |
| LW2 | On left rear of engine block, 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.