2013 F150 loss of RPM WOT

[pstephens46]

You replaced or cleaned the four injectors?

[Neversosure]

And there is absolutely no way the boat weighs more than it did before. Just asking? Is it trailered or left in water?

No Sir...... boat weighs the same.... the boat is in the water..... fresh bottom paint. No extra gear added, no water.

[Neversosure]

is rail pressure in spec?
was is all plugs that looked rich?

I am checking the pressure tomorrow morning along with thermostat change. Only two were sooted up

[pstephens46]

And there is absolutely no way the boat weighs more than it did before. Just asking? Is it trailered or left in water?

[99yam40]

is rail pressure in spec?
was is all plugs that looked rich?

[Neversosure]

Hello all,

I have a 2013 F150 on my bay boat, I have 208 hours on it. The boat has always ran great, 5900rpm @ 41Mph, late last summer I started having a WOT issue. I am only able to get to 5300 rpm @ WOT......

This winter I changed the following:

F filters
VST filter
fuel filters
injectors
plugs

Still have the issue!!! Grrrr......

Boat idles smooth as glass, gets up on plane, but will not get above 5300 rpms,

Plugs had a little bit of soot on them (rich), I am banging my head over this.... loss of 600 rpms.....

Prop is fine, fuel is clean, not making oil,,,,,,

Taking all ideas....... HELP!


Matty