5.4L misses in wet weather

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#16

04-02-2010, 08:44 PM

2002 F350V10

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I had the same problem, and suspected it was a cop. A simple trip to autozone pulled up the code as for which cylinder was the issue. Installed a new cop, and problem gone.

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#17

04-02-2010, 09:27 PM

EXv10

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I wash mine

I am carefull not to dwell on any sensitive parts when I PRESSURE WASH my engine and it works out fine. Not even a miss. I sealed a couple boots with sealer a while back and all is well.

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#18

04-12-2010, 01:10 PM

bluescrew

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i used to have a 06 blue screw 5.4 same thing. ford put silicone around where the plugs are. common problem they said...

it pissed me off!!!!
5.4s biggest fault

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