2001 Will not start.

[F350none]

I have a 2001 PSD with 425,000 miles. When driving down the interstate it lost power gradually and then died. It will not start. Turns over and acts like it wants to start (hits on a cylinder or 2) but will not.

Here is what I have done so far.

It has fuel (in the tank),
I changed the fuel filter.
The turbo spins freely.
The high pressure reservoir is full of oil.
Oil level on dip stick is good.
Check engine light is not on.

What do I check next?

[quadrace13]

are the rpm's rising on the dash when you crank? fuel pump would be my guess... turn the key and try and listen to it.. maybe open the bowl and see how long it takes to prime fuel up

[chvyrkr]

How much fuel was in the bowl when you changed the filter? It should want to overflow on you when you install a new one.

[F350none]

I do not know how much fuel was in there. I always drain the fuel before opening the cap. I never looked to see if any drained out.

I did not see the rpm gauge move. I thought it tried once but if it did it did not move enough for me to say for sure it did.

[chvyrkr]

If it don't move while you're cranking the truck your CPS is bad. No question.

[F350none]

Originally Posted by chvyrkr81

If it don't move while you're cranking the truck your CPS is bad. No question.

I thought that except for the fact it died slowly. It did not just quit. When the CPS went out in my 1999 it just died, not lost power over a couple miles and died. I will try it. Can't hurt.

The fuel pump makes noise so I think it is good.

[oldtimer550]

Been here, done this...like 10 times..

Assuming the tach moves when you crank it..

You either ran out of fuel, or had a bunch of water in the fuel bowl..
Take the cover off the fuel filter, drain it, then have a friend turn the key on so the fuel pump runs..if the bowl starts filling immediately (You'll notice it) the pump is fine..Stop the fuel pump. Drain the bowl again. Now fill the bowl to the top with a 50/50 mix of diesel and

FPPF FUEL POWER

Pour the rest of the bottle in the tank.

NAPA should carry it, mine does.

Replace the filter, replace the cover, and cycle the pump 10-15 times without trying to start it...it wouldn't hurt to PLUG IT IN for an hour before-hand.

After the cycling, start it. Now run it easy like around the camp until it comes into it.

The tank on these trucks condense water whenever the truck is running..the warm fuel from the return line hits the cold tank, and...

You HAVE TO run a top quality fuel conditioner, a little dose EVERY TIME YOU FUEL.

FPPF is the BEST I have found.

Good luck.

[F350none]

I will pick up a CPS and some FPPF Fuel Power tomorrow and see if one of the 2 fixes it. The tank is at a 1/8 tank so it may have some water sucked up. Never thought of that. We shall see tomorrow.

[chvyrkr]

Take a 5 gallon can of diesel with you too...

If your tach moves when you crank the truck, it ain't your CPS. If it don't move, it's undoubtably your CPS. The gray CPS's don't just quit, that was a black CPS thing. The gray ones die a slow death on you.

I bet your fuel pickup broke off in the tank though now that I know you were at 1/8th of a tank. Put 5 gallons in it and 5 bucks says it starts.

Mine ran out at 3/8ths on my once, fuel pickups breakin off are fairly common.

[F350none]

CPS changed and truck will still not start. Took cap off fuel filter and there was no fuel in there. Going to pull the tank and check that first because the fuel pump is making noise.