Dead end

Asked by Troy Jul 10, 2016 at 09:51 AM about the 2003 Ford F-150 Lariat Crew Cab SB

Question type: General

I have done diagnostic testing, and have replaced
the parts that it said were bad did another
diagnostic test and it's saying the same thing, my
question is, is likely that the PCM has gone bad?

4 Answers
42,415

Auto_Centric answered 8 years ago

Whats the list of DTC codes? 4.6 or 5.4? what are the symptoms? the computer is least likely issue.. withhout more info.

Mark helpful
74,280

OJ answered 8 years ago

Most DTCs do not indicate which parts to change, only system to be checked, which may be many.

Mark helpful

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