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Old Sep 14, 2003 | 05:32 PM
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jw128's Avatar
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codep303
have 1999 f-150 4.2 liter,with codep303. have replaced fuel filter,egr,plugs&wireswith no help.what is the firing order& what else could cause the missfire in cylinder?
 
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Old Sep 16, 2003 | 09:08 AM
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From: Cedar Rapids, IA
I found this on the net. Hope this helps

http://www.visi.com/~rhanson/obdII_codes-full-text.htm
 
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Old Sep 16, 2003 | 09:17 AM
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From: Cedar Rapids, IA
The firing order is 1-4-2-5-3-6

You may have a bad head gasket, not sure. Check your coolant level.
 
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Old Sep 17, 2003 | 03:14 AM
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missfire
I got that code on my 97 f-150 4.2 missfire #2 turned out to be coil....this was before it started knocking.....
 
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