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Home >> Chevrolet >> 2003 >> Chevy Express G2500, Van Cargo Extended, 5.3 T, 4L60E/M30 >> Repair and Diagnosis >> Engine Performance >> Specifications >> Engine Controls - Service & Adjustment Specifications - 5.3L >> Ignition Systems >> Firing Order
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Firing Order

Fig 1: Firing Order (5.3L)
G95I35012Courtesy of GENERAL MOTORS CORP.