Originally Posted by canadianoilfield
so i filled up my 2006 ford f 350 6.0L with diesel and then i started it and started to drive away and then my oil pressure guage droped to nothing and the truck stoped and i havn't been able to get it going since. I have replaced all the injectors. and still nothing the oil is still in the motor and none leaking out it turns over fine. so i am trying to find out what other options i have to try to get this brute going again. if any of you have any other ideas?
You lost your LPO (low pressure oil). You need to climb under the truck and behind the harmonic balancer is a 12mm hex bit plug. Remove that, pull the spring and plunger out and check for debris. Also what oil filter and oil filter cap are you running in your truck? Pull the oil filter out and shine a light into the oil filter housing and check to see if the oil sparkles.
If you pull the filter and it has metal in it, you had something come apart in your engine (most likely a lifter needle bearing) which went through the LPOP and got chewed up and cause your no LPO causing the truck to shut down.
If you aren't running a OEM oil filter and cap and there was nothing in the oil and oil pressure regulator (behind the harmonic balancer) than replace the oil filter and cap with OEM and try again.
Originally Posted by rdezs
I don't think the fact you filled with diesel is related. Sounds like you may have lost your high pressure oil pump, the STC fitting, a dummy plug or......????
If he lost the pressure on his gauge on the dash that means he lost his LPO which in turn will stop feeding the HPOP and shut the engine down.