V6 (1994-2004) Mustangs Technical discussions on the 3.8L and 3.9L V6 torque monsters

2003 V6 new plugs,wires,coilpack,fuelfilter...bucking under load

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Old 12-13-2009, 04:24 PM
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Curlrup
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Default 2003 V6 new plugs,wires,coilpack,fuelfilter...bucking under load

Yep all new plugs, wires, fuel filter, and coil pack. this thing ran fine before I changed all of this out. Now under load the car bucks and pops...WTF. I need to get to work tomorrow.
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Old 12-13-2009, 04:36 PM
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Shaunmac9128
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Double check everything. Make sure you have the drivers side wires hooked up right because it isn't in 1 2 3 order. Double check all your connections as well.
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Old 12-13-2009, 04:39 PM
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7 UP Mustang
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Not sure what is wrong, but I know from doing this myself, you may have accidentally swapped two of your plug wires around. I would verify the firing order. Check that to be sure it is correct. Good luck!

LARRY
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Old 12-13-2009, 04:44 PM
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Shaunmac9128
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Yeah that was my point. On the drivers side the coil pack doesn't go in order 1 2 3 with the cylinders they swap over I forget the order.
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Old 12-13-2009, 05:42 PM
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Curlrup
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I checked the order it matches the manual. Also I changed them one at a time so I wouldn't get the order mixed up. I also transfered everything over one at a time to the new coil pack. I have double checked everything. I'm stumped. Now it's throwing codes and I can't find my scanner......URGH!
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Old 12-13-2009, 08:45 PM
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Got it scanned...imagine that it told me exactly which cylinder was misfiring. Cylinder 3 got a new plug and viola!!! Smooth as silk like it used to be. Florida here I come. Thanks for your help folks.
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