Originally Posted by WatsonR

If parking nose down temporarily resolved the issue, then ultimately, the only resolution is a new HPOP.

Originally Posted by WatsonR

I'd also start a new thread, this won't see much traffic and it's a different issue than you have. Most will say it's a year old or not look.

Originally Posted by WatsonR

Then that isn't the same. The nose up is from the reservoir being drained overnight and a handful of false starts eventually fills the oil rail and she fires.

Will it fire at all or just crank and crank? what year? Anything to monitor live data, like a scan gauge or Torque pro? Any codes stored? Oil change recently? and using an OEM oil filter cap? Do anything recently?

I'd also start a new thread, this won't see much traffic and it's a different issue than you have. Most will say it's a year old or not look.

Originally Posted by Stlrrig

I will try to keep this short, but there is a very specific series of events that need to occur before the starting issue presents itself.

The truck is a 2003 6.0L 4WD Excursion, 189K virtually stock (no engine mods)

The issue: After letting the truck sit over night, 12-14 hours or so, AND parked facing uphill (sloped driveway), it takes usually 4, but sometimes 5 attempts to start the truck. The start sequence is always the same:

1st and 2nd attempts: cranks, starts, stalls within 1/2 second
3rd attempt: crank, no start
4th attempt: usually starts with no issue; however, occasionally it will crank, no start (same as 3rd attempt)
If it didn't start on the 4th attempt, then it always starts on the 5th attempt.

Once started, the truck runs perfect for the rest of the day, no need to let it warm up (will start right back up), if it sits for 4 or 5 hours it will start right back up.

If I park it overnight facing down the driveway OR level on the street, it starts perfectly on the first try the next day. I've parked it up slope in this same driveway for 5 years and never had an issue before, now it does it every morning the truck is parked up slope.

There are no issues once the truck starts, runs perfectly as far as I can tell. No hesitations at highway speed or idling in the driveway.

I took it to Ford and they said it had low fuel pressure, so they changed the Fuel Pressure Regulator. That made the fuel pressure even lower, so they changed the fuel pump. They guaranteed that fixed it! It didn't, same issue. I brought it back and they said it was the oil filter letting the oil leak out of the filter bowl. I had just changed the oil and filter, so I figured maybe I did something wrong, not that changing the oil and filter is hard, but who knows. So they put in a new Motorcraft oil filter and again guaranteed that is was fix. It wasn't, same issue.

They asked me if I parked it on a slope, I told them I did, so they said they left it over night with the front end jscked up in the air. The next morning they said it started on the first try.

Now they said it is probably something in the lower half of the engine or something to do with the HPOP losing prime (even though they can't duplicate the issue.) I am concerned that they will just tear the engine apart looking for something not really know what the cause it.

Any help anyone can provide would be greatly appreciated!

So while I wait for help I will continue researching how to turn a 4WD 06 Escape into a 2WD Escape, but that is for a different thread.

Dave