How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Ray M. Your Own Question
Ray M.
Ray M., Ford Master Tech
Category: Ford
Satisfied Customers: 3010
Experience:  30+ years in trade, Ford Master Tech, Journeyman Automotive Tech
Type Your Ford Question Here...
Ray M. is online now
A new question is answered every 9 seconds

No oil pressure at idol - wont stay running 2004 6.

Customer Question

no oil pressure at idol - wont stay running 2004 6.0L diesel excursion
Submitted: 7 years ago.
Category: Ford
Expert:  Ray M. replied 7 years ago.
Do you mean you have no engine oil pressure or no Injection pressure oil?
Customer: replied 7 years ago.
engine oil pressure at an idol goes to zero. if you reve it up the pressure levels out to where it is suppose to be. and drops back down to zero when at an idol. I have removed the valve behind the serpentine belt to see if it was sticking - clean and relubed and reinserted - made no difference
Expert:  Ray M. replied 7 years ago.

When you say it wont stay running,do you mean it stalls when you let it idle?

Or just the oil pressure drops to 0 on the gauge?

Customer: replied 7 years ago.
just the oil pressure drops to zero and will not start unless you throttle it
Expert:  Ray M. replied 7 years ago.
I would suggest you have a manual pressure gauge hooked up to check the actual pressure,as the sending unit in these trucks is just an on off switch and doesnt show actual pressure,it may be just a sending unit problem. The no start without throttle may be a bad ICP sensor.
Customer: replied 7 years ago.
where is the oil sending unit at on the 2004 ford excursion 6.0 diesel?
Expert:  Ray M. replied 7 years ago.
The engine oil pressure sending unit is behind the oil filter housing and just in front of the turbo,it is the sensor with the single wire to it,and a grey connector.