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I've got a 2000 F350 (7.3L) and while I was driving last night, the engine just turned off! It was in a busy part of town, so it became a safety issue when I had to navigate a truck without power steering or power brakes (while I had my whole family in the truck with me).
While I was coasting, to find a smart place to stop, I put it in neutral and started it. It started and I revved it for a little while then went on my merry way.
What could have happened?
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Oh, golly, you shouldn't have asked this here. Most people honestly dont' know much about vehicles, and especially diesel.
Go to FTEF (ford truck enthusiast forum) or something like that, i haven't been there in over a year, but you could get at least 50% of the responses smart ones and actually helpful.
Alright, good purchase by the way Jamin. 7.3 will last a very long time. It's no where near as powerful as the later deisels, but it's pretty reliable. I still have a 2001 f550 with the 7.3.
Screw the electrical suggestions, there are good ones for little gas cars and such, but that's not likely your problem.
Check your oil level, on very level ground. If the oil in that truck simply get a little more than a quart low, or anywhere around the minimum line, the truck can shut down, even more so when going up a hill. Oil pressure goes to the fuel injectors and is a key compenent of them working properly in the 7.3L. If they don't get enough oil, they don't squirt fuel and the truck stops running. I have seen this twice in our 7.3 in the trucks lifetime so far.
How does a diesel engine shut off when you turn the key off? Fuel stops getting pumped from the injector pump.
Another possible cause in your 7.3: The cam positioning sensor goes bad on those engines after a while. This sensor lets the computer know what the engine is doing and when to inject fuel at the right time and such.
So, my opinion is that it is likely going to be one of those two things.
well, i just thought of another thing. Have you twisted that lever next to your fuel filter and let the water drain out lately? it likely wouldn't have caused the whole engine to stop running totally though, but it's a good thing to do anyway. i wish my newer 6.0 still had that kind of set up to drain the water, so easy.
later,