1999 3.0L vulcan with Motorcraft coil pack...which cylinders do spark plug wires go i

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Jul 9, 2025

#26

Randymoss

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Dawg after 10+ cranks on the first day of this, maybe 15 on the second day, the engine will absolutely flood. Air and fuel poor into the cylinders with every crank and since my wiring was incorrect in many of those early attempts, there was no spark to ignite all the fuel poured in. Plus my new plugs are NGK R6s while my old ones are R5s, which are better for low temperature sparking ig. I'm just gonna make sure the engine is dry again tomorrow and crank with old plugs. If somehow that fails too, ima just pull every plug and terminal and ground them to the engine and visually watch the spark sequence

Quote:

Originally Posted by docm

The only part I don’t understand is that it is hard to flood a motor that is controlled by a computer. It leads the possibility of some injectors could be bad? Or the fuel regulator? If you’re trying to start the motor and pump the accelerator pedal nothing will happen It’s not a carburetor. I believe your idea to put the old plugs in . Might be a good idea, good luck