4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

Found Problem...

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Old Jun 13, 2008 | 12:52 AM
  #1  
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99gt302
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From: Concord, North Carolina
Default Found Problem...

Nevermind the other post, I just found the problem. Pulled the 4 drivers side coils, all read around 5.80 OHMS form positive pin to spring except one, it read 4.70OHMS so its very weak, replacing it tomorrow.

Im checking the other sides now.
Old Jun 13, 2008 | 02:10 AM
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99gt302
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From: Concord, North Carolina
Default RE: Found Problem...

Oh, and why do some of the COP springs have resistor looking things in the middle of the spring, and the other ones have them at the end of the spring? WHat are they for?
Old Jun 13, 2008 | 09:06 AM
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99gt302
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From: Concord, North Carolina
Default RE: Found Problem...

OK so I replaced that bad coil this morning and WOW! It must have had a weak spark even when it was not missing because now it fells soooooo much stronger. I bet Ill get a 10th off my track time, lol. No longer do I have to strain the car to bark 3rd, it is like before and just does it very easily. w0ot! Makes me want to buy all 8 just in case they are weak as well.
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