2005 F250 6.0 crank no start.

[Freddyfixit]

Thanks for any help in advance. New here so still figuring this out. So here is the problem. Coming home last week, pulled out and passed a slower car. Noticed a little lose of power. Got home shut the truck off, came back out and no start. Checked fuses, Hfcm humming. Did some research found out about high pressure oil leaks on 6.0's. Replaced Stc fitting with upgrade kit. Replaced stand tubes and dummy plugs. Replaced IPR valve. Upgade fuel pressure kit, fuel filters, and oil change. Still no start. Can the HFCM hum and still not be working? Thanks again.

[still runs]

check the volts on it not sure if it will still hum or if it should hum another thing is your hpop coulda taken a crap on ya either way your looking at 4-600 to fix either one

[Ranger429]

I just went thru this same problem, cranks and no start. Read this thread from front to back and try the advice given to me. Solved my problem to get mine started.

06 6.0 no start

In short there is a 12mm allen plug behind the dampner. Pull that plug and see if there is debris caught in the plunger. Use caution pulling the plug as it may be spring loaded, should not be though.

Also crank the motor over first to see if the oil pressure gauge in the dash is showing any signs of working.

[Freddyfixit]

The voltage at the FICM is 48.4. Disconected ICP still no start. Pulled top fuel filter turned key on, filled bowl quickly but had lots of air bubbles. Not sure if that is just air from changing HFCM filter or something else.

[Ranger429]

Did you read the thread I linked? Pull the oil filter from the cartridge, look inside on the bottom for the plunger. It will be on the drivers side. Get a long screwdriver and push that down while someone cranks the motor over. You should get oil starting to flow. If there is no oil flow then go underneath and pull the allen plug out and report back what you find.

[Freddyfixit]

Have good oil pressure on dash guage while cranking. Will have to check oil filter wednesday. Called it a day already and have 13 hour shifts monday and tuesday.

[Freddyfixit]

Plenty of oil in filter.

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[thedjwcc]

What was your final diagnosis?

[Freddyfixit]

High pressure oil pump was bad.