I have a 5.4 in my superduty, and it was replaced with a 2001 5.4 motor
after noticing a diesel sound when starting up in cooler weather. I find it
has the same noise as before, but also notice it sounds like it has a valve
ticking noise in the upper rpm's when driving just before it shifts. It
drives fine, and has lots of power, just wondering if this is typical to
this engine, or if I have problems that are gradually getting worse. Any
info would be appreciated, and if there is any TSB's related to this.
Have you checked the exhaust gasket? Sometimes those things go out and it
sounds just like a clicking valve. Just replaced one on my boss' truck that
did the same thing.
That is something I have never thought about. It would make sense, as once
the truck is good an hot, I no longer hear it. I would be happy if that is
all it is. I had a '91 F-150 that used to crack exhaust manifolds like they
were going out of style. Ford finally got a set right, and at one point, it
stopped. Lucky for me, it was always under warranty. Chacking the manifold
should be fairly simple.
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