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Home >> GMC >> 1974 >> Rally G2500, 5.7L Eng VIN Y, Automatic Trans >> Labor Times >> Other Variant >> Engine Performance >> Ignition Systems >> Ignition Timing >> Adjustment

Ignition Timing: Adjustment

WARNING: This page is about the Rally G1500, 4.1L Eng VIN Q, Automatic Trans, which is a different variant/trim than selected.
Applies ToNoteStandard HoursWarranty HoursSkill Level
G1500, w/Air CondIncludes: Check and adjust Idle Speed.0.80.6C
G1500, w/o Air CondIncludes: Check and adjust Idle Speed.0.60.4C
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