I got a read gauge light on my truck and the truck shut off on me

MATODELL815

MEMBER
2004 FORD EXPEDITION
4.3L
6 CYL
4WD
AUTOMATIC
163,000 MILES

I checked everything and I had very low oil. I replaced the oil completely and my truck still will not start. I've unhooked the battery to soft reset the computer and she will not fire over still. I watched the oil pressure gauge go up to about 50% of the lines and then when I stop cranking it just looses all pressure. Can anyone tell me what's going on here because I'm at a loss? I feel it maybe is a busted rear seal or maybe the oil pump? If anyone could help out would be great.

Saturday, January 25th, 2020 AT 9:37 PM

3 Replies

JACOBANDNICKOLAS

MECHANIC
110,176 POSTS

Hi,

Check to see if the inertia switch needs reset. It should be located in the rear of the vehicle, driver's side. You should have a small panel that is removable to access it. I attached two pics which I hope help.

Let me know if this helps. If it doesn't, I need to know if you are getting fuel and spark to the engine. Here are two links that explain how it is done:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

https://www.2carpros.com/articles/how-to-test-an-ignition-system

Let me know what you find.

Joe

Images (Click to make bigger)

Was this

answer

helpful?

Yes

No

Saturday, January 25th, 2020 AT 10:08 PM

MATODELL815

MEMBER
2 POSTS

There is no fuel reset in the back just a air suspension switch. The cop that showed up said that the only way the fuel switch gets tripped is from an accident crash. I lost oil pressure which shut me down.

Was this

answer

helpful?

Yes

No

Saturday, January 25th, 2020 AT 10:43 PM

JACOBANDNICKOLAS

MECHANIC
110,176 POSTS

Hi,

Yes, that is the how it works. I was thinking it could be somehow related. I do have a question. You listed the vehicle as an Expedition. A V6 isn't offered, so I assumed you meant it had a 4.6L V8. Which is correct? Is it an Expedition or possibly an Explorer with the 4.0L V6?

Now, since you are showing fuel pressure what I suggest is to get your hands on a scan tool. Check for diagnostic trouble codes and clear any that are stored. There may be memory in the system keeping it shut down.

If you can't get a scanner, I need to know if you have lost both spark and fuel to the engine or one or the other.

Let me know.
Joe

Was this

answer

helpful?

Yes

No

Sunday, January 26th, 2020 AT 6:39 PM