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Jan 7, 2009 | 07:57 AM

chickenwing

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Joined: Jan 2009

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From: quad cities

spark plugs

how hard is it to change plugs in a04 f 150 4.6 4x4 if it's not hard what do i need

Jan 13, 2009 | 02:51 PM

afcop13

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Joined: Jan 2009

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From: Valrico

Also curious about the 5.4 - (2004 SCREW)........please don't tell me they are the dreaded 2-piece ones like my 05 Mustang GT has......prone to breaking.

Jan 13, 2009 | 04:09 PM

exitwound

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Joined: Jul 2008

Posts: 244

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From: earth

Quote:

Originally Posted by afcop13

Also curious about the 5.4 - (2004 SCREW)........please don't tell me they are the dreaded 2-piece ones like my 05 Mustang GT has......prone to breaking.

They are. Some people have good luck some don't. I didn't and I followed the TSB to a "T". It seems the sooner you replace them the better off you are. Mine were at 75,ooo and 6 of the 8 broke.

Jan 14, 2009 | 07:06 AM

afcop13

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From: Valrico

I figured as much. I've got the TSB.

Jan 16, 2009 | 05:26 PM

abhik382

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Try some Iridium spark plugs. they are best and latest.

Jan 16, 2009 | 05:50 PM

Good old Bill

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Joined: Feb 2008

Posts: 4,658

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From: Henderson, NV.

Would love to give up real good advice, seems everytime I get the opportunity to view a 4.6 or 5.4 I walk away thanking God for my little 4.2. Sorry and good luck.