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2002 Ford Explorer: fuel pump..fuel filter..oil filter..spark plugs

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My 2002 Ford Explorer gets a message low oil pressure. It will not idle (run). I changed the fuel pump, fuel filter, oil, oil filter and spark plugs. What can it be? I have no way of taking it to a mechanic. Can you give me some ideas to check?
Submitted: 6 years ago.
Category: Ford
Expert:  Chris (aka- Moose) replied 6 years ago.

Hello Customer

Thanks for coming to Just Answer to ask a question.


Did the low oil pressure warning come on prior to this when the engine was running well?

When your cranking the engine does it try to start up?

Customer: replied 6 years ago.
It was running fine. On Wednesday, I drove it around and in the evening I was on my way home-I started it and the displayed showed low oil pressure. I checked the oil gauge in the engine-it was fine. The vehical would not start. I had it towed home. When I got it home- I turn on the keys and try to start it again-the display showed low oil pressure and low fuel. I had the fuel pump, fuel filter, oil changed, and spark plugs changed. It started yesterday. Today, the vehical started jerking (hestitating) -almost stalling, losing power. There is no idling of the engine.
Expert:  Chris (aka- Moose) replied 6 years ago.

How many miles on this engine?

Have you changed the oil always at the correct intervals?

Have you cranked the engine and used a real PSI gauge to check oil pressure?

Customer: replied 6 years ago.
160,222 miles. I changed the oil every 3,000 to 3,500 (rarely). But every 3,000 miles. The engine starts but the idle is rough. I haven't got a PSI gauge and I don't know how to use one. The display just shows low oil pressure. Could it be the oil pump is out?
Expert:  Chris (aka- Moose) replied 6 years ago.
If its showing low oil pressure then its actually aconcern internal with low oil pressure or a failing oil pump or just a gauge. A low pressure signal will cause the PCm to make the engine operate different in a fial safe mode to prevent damage. So you must get a gauge and actually test the oil pressure to see if its really low.
Customer: replied 6 years ago.
<p>Where can I purchase a gauge like this? And can I test it on my own or do I need a technican? I live two hours away from a nearest city. I am trying to fix the vehical on my own.</p>
Expert:  Chris (aka- Moose) replied 6 years ago.
You can buy a pressure gauge and fittings from online like matco or snap on or mac or from some parts stores like napa and auto zone.
Customer: replied 6 years ago.
If I just replace the oil pump- Do you think it will work?
Expert:  Chris (aka- Moose) replied 6 years ago.
That would be a guess which i dont like to do but there is a estimate 75% chance this will solve it.
Chris (aka- Moose), Technician
Category: Ford
Satisfied Customers: 43165
Experience: 16 years experience
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Category: Ford
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