Ok I have been looking around on the site and have found no comparison to my story. I just recently purchased a 2000 F250 PSD 4x4 manual from a family member and the truck has been sitting for about 2 years no starting no driving. I did a tune up on it and have been driving it for work and have logged about 1000 miles on it with no incidents no issues at all. I recently warmed up the truck for about 15 mins before I left in the morning and drove it about 40 miles and pulled on site and it randomly died and would not start again. No check engine light, all other gauges work when key turned forward except no oil pressure. Also no smoke or anything coming from tailpipe. :brickwall:Me (a soon to be aviation mech) and my stepfather (an aviation mech) tooled around with it for about 2 days and still could not figure out the reason for the problem checked fuel, batteries, fuses and relays and nothing. Any help would be greatly appreciated! Thank you....
2000 F250 Ran fine then just died! Please Help!!
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Welcome to TheDieselStop, and to the Diesel community 
Like Torqmnstr said, the CPS (cam position sensor) is often a culprit in situations like yours. A telltale sign of bad CPS is no tach reading while cranking.
The CPS is located at the 11 o-clock postion of the crankshaft pulley and has a timing pointer on the bracket. Best accessed from below. Remove the wiring connector and the bolt (10mm hex), pry the old CPS out, put a little engine oil on the o-ring on the new one and install it. Check the connector for corrosion and if good - reinstall it on the new CPS.
Hopefully that will get you rolling again.
I'm assuming that you used a meter to check the fuses.
When you say no check engine light, does it come on momentarily when you turn the key on? If not, check #30 under the dash again, and if you find that bad, pull the fuel heater connector at the driver's side rear of the fuel bowl, put in a new fuse, and see what happens. The fuel heater sometimes shorts out, blows the fuse which also powers the control circuit for the PCM Power relay, causing a no-start.
Also check the IPR (Injection Pressure Regulator) coil (located below the fuel bowl on the HP oil pump). If it's fallen off - held on by a tin nut - or the wiring is broken or shorted, you won't get any HP oil pressure to run the injectors.
Let us know what you come up with.
Like Torqmnstr said, the CPS (cam position sensor) is often a culprit in situations like yours. A telltale sign of bad CPS is no tach reading while cranking.
The CPS is located at the 11 o-clock postion of the crankshaft pulley and has a timing pointer on the bracket. Best accessed from below. Remove the wiring connector and the bolt (10mm hex), pry the old CPS out, put a little engine oil on the o-ring on the new one and install it. Check the connector for corrosion and if good - reinstall it on the new CPS.
Hopefully that will get you rolling again.
I'm assuming that you used a meter to check the fuses.
When you say no check engine light, does it come on momentarily when you turn the key on? If not, check #30 under the dash again, and if you find that bad, pull the fuel heater connector at the driver's side rear of the fuel bowl, put in a new fuse, and see what happens. The fuel heater sometimes shorts out, blows the fuse which also powers the control circuit for the PCM Power relay, causing a no-start.
Also check the IPR (Injection Pressure Regulator) coil (located below the fuel bowl on the HP oil pump). If it's fallen off - held on by a tin nut - or the wiring is broken or shorted, you won't get any HP oil pressure to run the injectors.
Let us know what you come up with.
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2,688 Posts
There is also the seemingly inevitable plugged up in-tank fuel filters. If the truck has sat for several years, that gives it plenty of time for stuff to grow in the tank. What happens is the filters plug up, forcing the truck to use a bypass nipple to draw fuel, located at 1/4 tank level in the tank. If you happen to let the actual fuel level fall to 1/4 tank or below, you start sucking air, essentially running out of fuel. If your tank is that low, try putting in 10 or 15 gallons of fuel and give it a go. That's if the CPS is not the culprit.
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