I bought a 2004 f350 6.0 that needed radiator, ac condenser, and a trans cooler. When I bought the truck both batteries where shot so I bought two new ones and the parts that where missing. After putting the truck back together I turn the key on and everything works but the truck won't even begin to turn over. I have power to the fuel pump, glow plugs, vacuum pump and I used a test light to confirm power to the starter. I have checked all the relays under the dash and they all seem to be good and checked both batteries and they are both good. Hooked my scan tool up and it says to replace the ICP sensor, but I didn't think that would prevent my truck from starting.

 

An ICP could cause a no-start, but probably not a no-crank.

Is your 04 an early or a late 04 (where is the ICP sensor located)?

No Crank
Find the yellow with light blue striped colored wire adjacent to the passenger side battery in the engine compartment, near the vacuum pump that has a "squeeze-and-pull" type connection. Disconnect it, and jump the male end of the connector to the passenger side battery positive terminal. The starter should crank. Let us know if it does.

A shorted out fan clutch can cause a no-crank. So can a shorted out EBP. A bad transmission range sensor can also cause a no-crank. Try cranking with the EBP disconnected, then the fan clutch disconnected, then try cranking in neutral (in addition to trying to crank in park).

Also, don't forget to check the inertia switch (it has a reset button).

Problems with OEM (PATS) or aftermarket theft system can cause a no-crank.

Double check fuse F2-22 (20A Engine Controls) under the dash. If it is blown a few common causes are: shorted fan clutch, MAF, IPR, EGR actuator, or GPCM.

 

I tried the yellow wire and nothing happens, have tried starting in neutral and unplugged the fan and still nothing. Checked #22 fuse and it's good. The ICP sensor is on the passenger side front of valve cover so it's a late build 04.

 

I'll try with the EBP disconnected and get back with you.

 

If the yellow wire doesn't start it, then it is your starter. It is a direct supply of current to the starter. Don't bother with the sensors, it is not be engine related.

 

Okay. I'm going to take the starter off now and pick up a new one. Will let you know if that fixes it. Thanks

 

Okay so now after replacing the starter it will turn over but it's a slow crank and won't start.

 

You need 150 rpm to start. Check that.

Also, charge and load test the batteries.

 

My scan tool reads 194 rpm, it's starting to crank faster than before but still no start. However my scan tool also says I'm only getting a little under 11 volts while trying to start. Guess I'll take the batteries off and have them charged and tested tomorrow.

 

Batteries are good, tested them today. Checked the inertia switch, FICM is good, starter is good. Scan tool still says low voltage and to replace the ICP sensor.