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.
1999 Saturn SLFACTORY OEM SERVICE PROCEDURE
Engine Code Location
NOTE:
For description of engine (RPO) code, see 1999 MODEL COVERAGE table.
- LA1, LP2, LS1, LV6 & L81
On left side of engine block, on engine-to-transmission mating flange. - LD8 & L37
On right front side of engine block, near rocker cover, OR on right front side of engine block, forward of transmission extension. - LD9
On engine block, near oil filter, OR on left rear side of engine block, on engine-to-transmission mating flange, OR on top front of engine block, near timing cover. - LL0 & L24
On left rear side of engine block. - LN2
On left side of engine block, under exhaust manifold, OR on left rear side of engine block, on engine-to-transmission mating flange. - LX5
On right front side of engine block, near timing cover. - LY8
On lower left side of engine block, on engine-to-transmission mating flange. - L36
On left side of engine block, near rocker cover, OR on left rear side of engine block, on engine-to-transmission mating flange. - L47
On right front side of engine block, below cylinder head, OR on left front side of engine block, below cylinder head. - L67
On left front side of engine block, below cylinder head, OR on left rear side of engine block, on engine-to-transmission mating flange. - L82
On left rear side of engine block, near oil pan, OR on right side of engine block, near rocker cover, OR on left rear side of engine block, on engine-to-transmission mating flange.
Factory Service Tools
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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.
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