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Re: 89 F-150 4.9L No Spark
Posted to Technical Discussion Forum on 9/1/2020

Check your connections at the ignition coil and the control module. Wiggle them while some cranks the engine over. Unplug the spout connector and check again for spark. If spark returns check your wire harness for grounded or broken wires. As a quick check plu... Login to read more.