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01-07-2009, 07:57 AM

chickenwing

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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

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01-13-2009, 02:51 PM

afcop13

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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.

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01-13-2009, 04:09 PM

exitwound

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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.

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01-14-2009, 07:06 AM

afcop13

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

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01-16-2009, 05:26 PM

abhik382

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

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01-16-2009, 05:50 PM

Good old Bill

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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.