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Here we are looking at a Ford Light Duty three-quarter
ton motor and through out
this page I will explain the unique features of the Triton
engine.
The CrankShaft Position Sensor is vital, because if there
is no signal from the CrankShaft the engine
will stop running and will probably not start until it
is replaced.
The Camshaft Position Sensor works the same as the CPS,
it reads the engines timing
and if the signal is faded or lost it will stall or stutter.
As you can see the Ford 5.4L uses individual coils for
each plug, you are probably thinking the same
thing as me "That's got to be expensive to fix."
The coil it self is small but very durable it is epoxy
filled.
The coil and spark plug boot are low in the head and removal
isn't simple, so be careful because these heads are aluminum.
It looks like the spark plug and coil are part
of the intake manifold, and it is but only held on to by a 5/16 bolt.
The Egr (Exhaust Gas Recirculation) valve opens at cruise
and allows exhaust gases to be reburned, therefore less NOx
emissions and less harmful gases into the atmosphere.
The Fuel Rail is located on the intake along side the
coils, and as you can see this engine is M.P.F.I
(Multiport Fuel Injection) this system has great throttle
response and quick smooth power.
Here is another shot of the intake and plenum, if you
look closely it looks alot like a high rise intake off
an oldies Hot Rod, maybe that's why the new Fords such
great power.
This shot was a hard one to take because if I took it
from the front you would have no idea were it was, this is
the Power Steering Pump. It is basically part of the
engine.
You got it ! roller rocker and Camshaft for smoother more
even power and longer engine life.
Another thing that is totally new and almost unexplainable
is that the CamShaft is a hollow piece of metal, instead of a machined
piece of steel. The lobes of the CamShaft are pressed on instead
of machined in. My thoughts are that in time the lobes might turn or shift
and could cause poor performance or valve train problems.
What you are looking at is a air control valve, which controls air flow to the cylinders depending on the load put on the engine.
This is a Knock sensor, if the engine has spark knock,
the computer will retard the timing to eliminate it. The tube you see
is called a heat return tube, it returns hot coolant
back to the waterpump.
Here is the timing chain and sprocket as you can see it is an OverHead CamShaft, very impressive for a truck.
Here is how the timing assembly is put together, as you
can see it is very complicated, after I started reassembled this motor,
trying to align the timing mark on this engine is very
challenging, Do not attempt this at home.
Even this is out of a light duty it is still equipped
with a oil cooler.