gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Number One Cylinder > < Ignition Firing Order
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Ignition Timing Connector: Locations

Put the IC system in the bypass mode by disconnecting the "Set Timing" connector. This is a single wire sealed connector that has a tan with black stripe
lead. This connector breaks out of the engine wiring harness conduit adjacent to the distributor.

Number One Cylinder > < Ignition Firing Order