Starting problem
Thread Starter
|
New User
Joined: Feb 2009
Posts: 9
Likes: 0
Starting problem
I have an 01 F250 7.3 PSD. last night it just quit running and now won't restart. It cranks freely just doesn't hit. I have replaced the cam position sensor. checked the fuel pump on the frame rail it is good. But still nothing. I am low on oil wondering if that could be a reason why? if the oil pressure switch would keep it from running... going to add some oil after work but trying to get some input...
Hook it, I'll pull it.
Joined: May 2007
Posts: 15,037
Likes: 4
From: Grand Lake, La.
Welcome to FTE.
Being low on oil will stop it from starting. The HPOP (High Pressure Oil Pump) fires our injectors. If the LPOP (Low Pressure Oil Pump) can't supply the HPOP with enough oil, the engine will not start.
Also, the PCM has to have 10.5 volts in order to tell the injectors to fire. Test your batteries to be sure they are at 12V, and at least 10.5 volts while cranking. Check battery connections, clean and tight.
Being low on oil will stop it from starting. The HPOP (High Pressure Oil Pump) fires our injectors. If the LPOP (Low Pressure Oil Pump) can't supply the HPOP with enough oil, the engine will not start.
Also, the PCM has to have 10.5 volts in order to tell the injectors to fire. Test your batteries to be sure they are at 12V, and at least 10.5 volts while cranking. Check battery connections, clean and tight.
