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I need help! p0304

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JESSE714	Post subject: I need help! p0304 Posted: Mon Feb 16, 2009 8:15 pm
Joined: Mon Feb 16, 2009 7:46 pm Posts: 1	98 ford expedition 5.4, p0304 #4 misfire??? I berely changed new spark plugs at a shop.
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Sponsored Links	Post subject: I need help! p0304  Posted: Today
Joined: 29 Jun 2004 08:12 pm Posts: N/A
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GETTAT2D	Post subject: Re: I need help! Posted: Tue Feb 24, 2009 7:03 am
Joined: Mon Feb 23, 2009 3:17 pm Posts: 24 Location: Rocky Mount NC	JESSE714 wrote: 98 ford expedition 5.4, p0304 #4 misfire??? I berely changed new spark plugs at a shop. put a coil on that cylinder along with a plug....or you can try cleaning inside of that coil boot real good and use some dielectric silicone. inside of those boots get carbon tracks and makes them misfire under loads. if none of that works check compression and make sure that injector isnt stopped up. sucks that its the worse cylinder to get to but thats how it goes usually! _________________ If its broke i can fix it!
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Webmaster	Post subject: Re: I need help! p0304 Posted: Tue Feb 24, 2009 8:19 am
Site Admin Joined: Tue Jun 29, 2004 8:12 pm Posts: 504 Location: Canada	http://www.obd-codes.com/p0304 _________________ OBD-Codes.com Administrator http://www.obd-codes.com
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