6.0 won't start

[divehammerheads]

I have a 2005 F350 with 6.0 power stroke. Started getting hard to start a couple of weeks ago, when it was cold, but ran fine otherwise. Started fine as long as the engine was warm during the day. Started plugging it in at night to keep it warm, started up perfect every morning. Figured it was the glow plugs so replaced them, but made no difference. Thought maybe it was the controller, but didn’t get a chance to change it before I drove it to work. It set for 7 hours and would not start at all. Plugged it in and let the motor get warm, but still didn’t start. I brought it home on a trailer, charged batteries, plugged heaters in overnight. Doesn’t even try to start now. Pulled out EGR valve and inspected the hole, no moisture, just suet. Cleaned the valve and re-installed and still didn’t start. Truck ran perfect before this…lots of power, no misses, no smoke, no smells. No water in oil, no oil in water.
Did notice it used 2 gallons of water exactly as I filled it with a gallon jug. Truck has 75,000 miles on it.
Any ideas would be appreciated.

Thanks
Ed

[NYC F-350]

First thing is to remove the batteries from the truck, run them down to the autoparts store and get them load tested. If they are marginal or fail, replace as a set.

Second, put the batteries back on the charger. They will need 100% full charge.

Third step is to check the FICM. You have the classic signs of FICM failure.
Here is a link on how to check the voltage readings correctly.
I recommend getting you rebuilt FICM from the same company. They have the best reputation out there. Swamps Diesel FICM Check


As far as the truck using 2 gallons of coolant, this is a separate issue unless you have been seeing white smoke coming out of the tailpipe or maybe you have seen water dripping out of it?

Check your FICM and post back. Need more info about its health.

[divehammerheads]

thanks for the help. I'll check that out as soon as I can. I'll post my findings.

Ed

[divehammerheads]

Just checked the FICM the way it said on the link you gave me. The volts with the key on is around 48v and same when cranking. The truck wont start at all so I couldn't test it when running.
Batteries are fully charge and turns over fine, just doesn't start. No smoke or fluid coming from tail pipe when it cranks or when it WAS running. It ran just fine right up until it didn't, no missing, smoke or noises.

[divehammerheads]

When cranking over, but not starting (won't start) Should the oil pressure gauge show pressure?

[NYC F-350]

Originally Posted by divehammerheads

When cranking over, but not starting (won't start) Should the oil pressure gauge show pressure?

yes, the stock gauge should move

[divehammerheads]

I sure wish I could figure this thing out. It doesn't move at all. I guess the only thing left is to just start taking it apart

[NYC F-350]

Have you checked out the "no start checklist"???
<LINK>

[Davey~do]

Since you've eliminated the FICM as the problem I'd find someone with a scanner and look into the high pressure oil (IPR / ICP).

[NYC F-350]

If you are not getting any movement on the stock oil pressure gauge (you will need a crank time around 20 seconds to get it to move), start looking at the low pressure oil pump.
Check it out by opening the oil filter cover, give it a few for it to drain, take the oil filter out. Look on the bottom of the oil filter housing. You will see a poppet style valve. You will need to hold that valve down with a long screwdriver and have someone else crank the engine over. The housing should fill in just a few seconds.