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.
1997 GMC Jimmy 2D Utility, RWD, StandardFACTORY OEM SERVICE PROCEDURE
Engine Code Location
ENGINE CODE LOCATION(1)
| Engine Code | Location | ||
|---|---|---|---|
| L19, L29, L30, L31, L35 & LF6 | On front of engine block, on right side above timing gear cover, OR on left side of engine block, on engine -to-transmission mating flange. | ||
| L56, L57 & L65 | On front of engine block, right side of timing gear housing casting, OR on top of engine block, near left cylinder head-to-engine block mating surface, at front, OR left side of engine block, on engine-to-transmission mating flange. | ||
| LA1 | On left side of engine block, on engine-to-transmission mating flange. | ||
| LN2 | On left side of engine block, under exhaust manifold, OR on left rear of engine, on bellhousing flange. | ||
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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.