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.

3 Replies

JACOBANDNICKOLAS

MECHANIC
109,709 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

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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.

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

JACOBANDNICKOLAS

MECHANIC
109,709 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

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