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1999 3.0L vulcan with Motorcraft coil pack...which cylinders do spark plug wires go i
I've tried maybe 25 different combos and spent maybe 5 hours trying to figure this out after changing my sparkplugs. I've looked at every suggestion online, but the truck won't start. I pulled a plug and grounded it to the engine block and it sparks fine. I'm desperate to learn what terminals go into what cylinders.
My coil pack labels the spark plug wires as 1 2 3 (front to rear) on the passenger side, and 5 6 4 (front to rear) on the driver side. I've tried so many combos and swapped wire lengths around but I've failed to start my truck since changing the plugs. The plugs are gapped right around 0.042 and are torqued lightly, but snug enough. I'll cashapp $10 to anyone who can get my truck starting again.
The correct pattern is right there on your coil
Number 1 goes to the front passenger side plug
Number 2 goes to the center passenger side plug
Number 3 goes to the rear passenger side plug
Number 5 goes to the center driver side plug
Number 6 goes to he rear driver side plug
Number 4 goes to the front driver side plug
My dear, I wish that were the case. It seems to need to be assigned to cylinders in pairs. Haven't cracked the code yet.
Originally Posted by 2011Supercab
The correct pattern is right there on your coil
Number 1 goes to the front passenger side plug
Number 2 goes to the center passenger side plug
Number 3 goes to the rear passenger side plug
Number 5 goes to the center driver side plug
Number 6 goes to he rear driver side plug
Number 4 goes to the front driver side plug
On some combos it has caught like a spark or two. It cranks just fine and with some combos the engine starts to shake (trying to start). I've tried that combo but I can try it again tonight after I make sure the engine isn't flooded after all these non starts.
Did the clear flood pedal crank twice. From the diagram, I just followed it and did 1 to 1, 2 to 2, etc., and I've got nothing with this. I'll try it based off firing order and terminal now
Originally Posted by docm
Take your time look at the diagram check it one more time. I bet it will start.
Yes it did, but in the process of changing plugs I lost track of the wires. Imma pull every sparkplug rn and ground them to the engine to see if all fire, and to literally see the order of the terminals firing.
Originally Posted by 2011Supercab
Did the truck start and run before you changed plugs?
Figured out my issue. The common wiring diagram you provided is actually probably gonna work. However, due to me using incorrect wire routing the first 4 or 5 cranks 2 days ago, the engine flooded and fouled every plug (they all smell like gas and are covered in soot/carbon), so every attempt after, including correct wiring, didn't even have a chance. 95% sure she'll be firing up tomorrow. Thanks yall
Originally Posted by docm
Take your time look at the diagram check it one more time. I bet it will start.
Did it pop or stutter or did it try to start? if I recall all you were doing was changing the plugs? Did it really have anything to do with the coil? Why did you start to change the plugs? And how many miles are on the truck?
Naw it did nothing because the engine was flooded before I ever tried the routing u gave. Fuel was literally choking the spark. So I removed the plugs, cleaned em, and I'll let em dry until tomorrow night. Cylinders are wide open rn so all fuel should evaporate. Even with the right wiring, a flooded engine would kill the spark. I changed the plugs bc I just bought this truck and I wanted it to start and run smoother. Mileage is unknown, maybe around 180k since odometer broke at 152k
Originally Posted by docm
Did it pop or stutter or did it try to start? if I recall all you were doing was changing the plugs? Did it really have anything to do with the coil? Why did you start to change the plugs? And how many miles are on the truck?
The firing order for a Ford 3.0L Ranger engine is 1-4-2-5-3-6.
Here's a breakdown of the cylinder locations and how they relate to the firing order:
Cylinder 1: Located at the front of the engine on the passenger's side.
Cylinder 2: Located behind cylinder 1, still on the passenger's side.
Cylinder 3: Located at the back of the engine on the passenger's side.
Cylinder 4: Located at the front of the engine on the driver's side.
Cylinder 5: Located behind cylinder 4, still on the driver's side.
Cylinder 6: Located at the back of the engine on the driver's side.
The firing order (1-4-2-5-3-6) means that after cylinder 1 fires, the next cylinder to fire is cylinder 4, then cylinder 2, then cylinder 5, then cylinder 3, and finally cylinder 6
Right....but then what does the numbers on the coil pack mean? Either the numbers match the same number cylinder or they tell what order they send spark in. It's gotta be either of those
Originally Posted by docm
The firing order for a Ford 3.0L Ranger engine is 1-4-2-5-3-6.
Here's a breakdown of the cylinder locations and how they relate to the firing order:
Cylinder 1: Located at the front of the engine on the passenger's side.
Cylinder 2: Located behind cylinder 1, still on the passenger's side.
Cylinder 3: Located at the back of the engine on the passenger's side.
Cylinder 4: Located at the front of the engine on the driver's side.
Cylinder 5: Located behind cylinder 4, still on the driver's side.
Cylinder 6: Located at the back of the engine on the driver's side.
The firing order (1-4-2-5-3-6) means that after cylinder 1 fires, the next cylinder to fire is cylinder 4, then cylinder 2, then cylinder 5, then cylinder 3, and finally cylinder 6
No but I had lost the original wire routing when I changed the plugs 2 days ago. Oem coil and it works fine. Due to my initial incorrect terminal wire routing, I flooded the engine (which I didn't realize) after trying to start it many times. This fouled my new plugs and most likely prevented spark, even in the correct terminal to cylinder wiring
Coil terminal 1 goes to cylinder 1, 2 to 2, 3 to 3, and so on right? Thats what im getting from the diagram you provided (and other stuff on the internet). Or is it based on firing order, so like terminal 1 to cyclinder 1, terminal 2 to cylinder 4, etc.? I think its a direct numeric connection
Coil terminal 1 goes to cylinder 1, 2 to 2, 3 to 3, and so on right? Thats what im getting from the diagram you provided (and other stuff on the internet).
YES, this is the proper way, terminal number to cylinder number
Originally Posted by Randymoss
Or is it based on firing order, so like terminal 1 to cyclinder 1, terminal 2 to cylinder 4, etc.? I think its a direct numeric connection
It’s not the firing order. It has nothing to do with it. Just look at the diagram that’s the way it’s supposed to be. How do you know the motor was flooded? Did you pull spark plugs?
I see. I know the motor was flooded bc even correct wiring didn't even give a kick so I pulled the plugs and they smelled strongly of fuel and were covered in carbon and soot. I cleaned em off and let the cylinders dry for a day and tonight the numeric wiring did give me a kick but it didn't start. Im going to throw the old plugs back in the engine tomorrow and give it a go then. Should start up if that wiring is true.
Unfortunately my new plugs are fouled and arent all sparking correctly due to sitting in the previously flooded engine for 2 days.
Originally Posted by docm
It’s not the firing order. It has nothing to do with it. Just look at the diagram that’s the way it’s supposed to be. How do you know the motor was flooded? Did you pull spark plugs?
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
