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January 1, 2004 Service bulletin

Engine wiring harness causing multiple driveability concerns diagnostic trouble codes (DTCS)

Chevrolet technical service bulletin 01583 for 2004 Chevrolet Impala, 2004 Pontiac Grand Prix and 2004 Buick Regal and others.

Bulletin number
01583
Component
Electrical system: wiring: front underhood
Summary
Engine wiring harness causing multiple driveability concerns diagnostic trouble codes (dtcs). Tt mj

Owners of these vehicles have filed 974 complaints in the electrical category.

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