<div dir="ltr"><div dir="ltr"><br></div><div dir="ltr">True Phil they'll almost all read codes for you so they can sell you a part. Often that works out, and occasionally it's even easier as in your example. (Hope you ditched the K&N) Unfortunately here in MikeM's case there are no codes.</div><div dir="ltr"><br></div><div>SO</div><div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Sep 14, 2021 at 6:03 PM Phil Auten <<a href="mailto:pga2@basicisp.net">pga2@basicisp.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<p>Around here almost all of the auto parts stores will read the
codes and translate them for you. They did my F150 not long ago
and it showed two codes for the MAF sensor in the intake tube. Oil
from my K&N air filter had contaminated it, A spritz or 2 with
some Brakekleen fixed it.</p>
<p>Phil in TX<br>
</p>
<div>On 9/14/2021 7:39 AM, Stephen Offiler
wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Regarding the codes. I've got to state my
disclaimer: I'm a little rusty with my knowledge of modern
engine controls. I used to do a lot of my own wrenching when I
had the '03 Focus and '96 F250. I had a scanner and a
subscription to AllData. Then around 2013 or so the Focus
turned into a nearly-new VW TDI, and then in 2016 I got a new
F250, and then VW bribed me to give the TDI back, so I've moved
on to a (used) BMW X1. They're all too new to need any
wrenching and as a result I can feel my competence level
dropping.
<div><br>
</div>
<div>OK, codes for a clogged cat? Only maybe. There are O2
sensors before and after the cat, which are used to check if
it's working. If they match, the cat isn't catalyzing
anything. But if it's partially clogged and still catalyzing
what gases are managnig to get thru, these O2 sensors will be
satisfied.</div>
<div><br>
</div>
<div>Codes for fuel filter? I think probably yes. It could
cause a fuel-trim code because the system sees a lean
condition and tries to correct it.</div>
<div><br>
</div>
<div>If a VVT problem (I haven't checked to see if that engine
uses VVT but just as a guess it's a fair bet that it does)
having a code is only a maybe.</div>
<div><br>
</div>
<div>SO</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Mon, Sep 13, 2021 at 8:13
PM Mike M <<a href="mailto:meulenms@gmx.com" target="_blank">meulenms@gmx.com</a>> wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div> Thanks Steve, no check engine light has come on, sorry
for the mix up but it is a 2012. I would assume their would
be no codes?<br>
<br>
Mike M<br>
<br>
<div>On 9/13/2021 5:00 PM, Stephen Offiler wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div dir="ltr">According to Nada Guides, there was a 4.6
V8 and a 5.4 V8 in model year 2010, and in model year
2011 they changed to a 3.7 V6 and a 5.0 V8. Sorry
but I don't have a lot of input on the problem.
Clogged catalytic converter is definitely on the list
based on the symptoms. Fuel filter is another guess.
Apparently there's no Check Engine lamp? I am still
trying to think how oil pressure could play a role.
It shouldn't be able to get high, as there's always a
relief valve in there somewhere. What if that
failed... what would high oil pressure do? Well,
really really stretching here but if there's any
variable valve timing arrangement on that engine, they
sometimes actuate it with oil pressure...</div>
<div dir="ltr"><br>
</div>
<div>SO</div>
<div> </div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Mon, Sep 13, 2021
at 4:36 PM John Hall <<a href="mailto:jtchall@nc.rr.com" target="_blank">jtchall@nc.rr.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Somebody switch
engines? Thought the 5.0 was long gone before 2010.
<br>
Think my son's 2002 is a 4.6?<br>
<br>
John Hall<br>
<br>
On 9/13/2021 4:28 PM, Mike M wrote:<br>
> Hi all, I have a question about my daughters
fiances truck. He has a<br>
> 2010 or 2011 F-150 with a 5.0 V8 in it. He said
it feels sluggish on the<br>
> highway, like he's dragging a boat anchor, and
his oil pressure seemed<br>
> higher than normal. He changed the oil and
filter the other day, and<br>
> said the dipstick had some "stuff"on it, so he
changed it again, no<br>
> improvement. I suggested that he check his air
filter to make sure a<br>
> mouse or other critter didn't make a nest in
there, but that was fine.<br>
> Any thoughts? I'm certainly no mechanic, but my
only other thought would<br>
> be a catalytic converter that is clogging up .<br>
><br>
> Thank-you,<br>
> Mike M<br>
><br>
> -- <br>
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