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2004 to 2008 F-150 and Mark-LT 4.2L, 4.6L and 5.4L equipped F-150s and Mark-LTs. |
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Clogged cats on a 2005 5.4?
I'd be getting it to a dealer to see if your injectors are ok....there's a tsb on them 120k miles or 11 years whichever comes first......also there's an emissions warranty good up to 80k miles or 8 years.....
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