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Home >> GMC Truck >> 1998 >> C 2500 Truck 2WD V8-454 7.4L VIN J SFI >> Repair and Diagnosis >> Maintenance >> Tune-up and Engine Performance Checks >> Firing Order >> Specifications >> Ignition Firing Order

Ignition Firing Order










Firing Order 1-8-4-3-6-5-7-2
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