Firing Order
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New User
Joined: Jun 2005
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Firing Order
i just replaced the distributer cap and new plugs and wires. i didnt number the wires and dont quite no the order they should go on the cap. is there anyway i can fix my problem or should i just take it to a mechanic.
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Joined: Nov 2001
Posts: 14,947
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From: Topsfield, MA
Does your radiator support have the sticker on it showing the plug wire arrangement? If so, you can follow that diagram and it'll show you where the plug wires are suppose to go.
You didn't mention what engine you have, the 302 and 351/302HO have different firing orders. The 302HO was part of the mustang stuff and not the truck stuff, trucks got a different firing order.
1-5-4-2-6-3-7-8 Non HO 302 counter clockwise
1-3-7-2-6-5-4-8 H.O and 351W counter clockwise
On the passanger side of the engine, the row of 4 cylinders is #1-#4....the drivers side is #5-#8.
Always mark, label, scribe, take picture, anything....to remember how you took something apart. It's always a good habit to try and put every little detail back the way it was when you took it apart. This goes for anything. Any minor change when putting something back together could cause you a problem. Many times people will make the mistake of "oh that's not going to matter I don't need to remember how that goes" and then when putting it back together they get a big surprise. Good luck
You didn't mention what engine you have, the 302 and 351/302HO have different firing orders. The 302HO was part of the mustang stuff and not the truck stuff, trucks got a different firing order.
1-5-4-2-6-3-7-8 Non HO 302 counter clockwise
1-3-7-2-6-5-4-8 H.O and 351W counter clockwise
On the passanger side of the engine, the row of 4 cylinders is #1-#4....the drivers side is #5-#8.
Always mark, label, scribe, take picture, anything....to remember how you took something apart. It's always a good habit to try and put every little detail back the way it was when you took it apart. This goes for anything. Any minor change when putting something back together could cause you a problem. Many times people will make the mistake of "oh that's not going to matter I don't need to remember how that goes" and then when putting it back together they get a big surprise. Good luck
Last edited by MustangGT221; Jul 13, 2005 at 04:17 PM.
