Engine, gas, 4 cylinder, 2.4L, multiport fuel injection, DOHC

Years 1998–01 Models 2 Factory citations 7

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Also described as Engine, 2.4L, 4 cylinder, DOHC

Also documented for Buick Chevrolet Pontiac

Documented applications

Achieva — N-body (1992–1998)

1998 Factory-verified

shared N-body code; Chevrolet Malibu kit.

GM factory document — 1998 oldsmobile achieva rpo code list, p.1.
GM Heritage factory kit — 1998 Chevrolet Malibu, p.6.

Alero — N-body (1999–2004)

1999–2001 Factory-verified

shared N-body code; Chevrolet Malibu kit

GM factory document — 1999 oldsmobile alero rpo code list, p.1.
GM factory document — 2000 oldsmobile alero rpo code list, p.1.
GM factory document — 2001 oldsmobile alero rpo code list, p.1.
GM Heritage factory kit — 1999 Chevrolet Malibu, p.27.
GM Heritage factory kit — 2000 Chevrolet Malibu, p.31.

This page aggregates every documented appearance of LD9 in the Oldsmobile reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.