washed engine bay now missing out 4.2
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New User
Joined: Apr 2009
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washed engine bay now missing out 4.2
Service Engine Soon light is on it is missing out. I have not been able to retrieve the code yet but will do so soon. I was just wondering if any one knew off the top of their head what I got wet to cause this issue. I have detailed the engine before with no problems the only difference between this time and last is that there is an aftermarket air intake on it. I made sure not to spray the filter directly. It is a 2001 f-150 4.2 v6.
Fleet Mechanic
Joined: Aug 2008
Posts: 1,446
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From: NE Iowa JD Country
Prolly got some moister under the plug wires or on the coil packs...unless this has the COPS (Coil On Plugs)...either case moisture got there. remove and dry, reinstall.
another thing to try is looking for vacuum lines that may have gotten knocked off or loose during the cleaning.
you're correct in trying to get the codes retrieved
another thing to try is looking for vacuum lines that may have gotten knocked off or loose during the cleaning.
you're correct in trying to get the codes retrieved
Postmaster
Joined: Oct 2009
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I wipe it down. I have also cleaned parts while the were removed. For the most part, I don't worry about how he engine compartment looks. I will clean stuff that I'm dealing with, but I don't clean stuff for the sake of it.
New User
Joined: Oct 2010
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to enriched and beyond- in your post above you said"unless this has the cops"-i had the same thing happen to me and i have the 'cops' (2000 f150 2wd 4.6). is the remedy the same or is my coil done(4th cyl misfire, intermittent)
Fleet Mechanic
Joined: Aug 2008
Posts: 1,446
Likes: 9
From: NE Iowa JD Country
Generally when a misfire happens...mileage is fairly high already...for example 70- 100k & more, and one can pretty much say, it might be better just to replace all the spark plugs and if equipt with coil pack and plug wires, replace the wires as well.
the coil pack and or Coil on the plug (COP), do not have too many issues. Not to say that they won't or can't, just that it is less likely.
If that doesn't cure it then one needs to dive into it deeper
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