No start when the engine is warm

markbr52 · #1 (**permalink**) 10-31-2009, 08:36 PM

I read through the majority of the "sticky" thread and didn't see the issue that I am having.

I have a 94.5 super duty that is a retired and very tired fleet maintenance tire truck. It has a PS engine I believe based on what I have read here.

The truck starts well first thing in the morning. I drove it a couple of miles to warm it up and everything looked good. Parked it back at the shop and shut it down. Tried to restart it and it would not. It cranks but doesn't seem to even try to fire.

They mentioned that they have had the issue of it not wanting to start again once it started in the morning. Their work around was to keep it running all day.

Only 185k on the engine.

Why might the truck not want to start again when it has started cold easily but won't start warm immediately after being run?

c00nhunterjoe · #2 (**permalink**) 10-31-2009, 08:43 PM

ipr o-rings. you have a high pressure oil system leak-

Jake331 · #3 (**permalink**) 11-01-2009, 08:42 AM

when my truck started doing this I just replaced the IPR and it solved the problem.

cowmilker08 · #4 (**permalink**) 11-01-2009, 01:12 PM

I don't know what a new IPR costs, but if their expensive, I'd just start by replacing the O-rings. The IPR itself rarely fails.
http://www.ford-trucks.com/forums/88...-this-one.html
http://www.ford-trucks.com/forums/89...h-or-ford.html

RubberDuck · #5 (**permalink**) 11-02-2009, 04:29 AM

IPR orings all day long.

Joe, that's a fuel line, not an oil line in the pic. LOL

95_Dually · #6 (**permalink**) 11-02-2009, 11:55 PM

Cody, I was thinking it was a fuel line too. That is the same one I blew when I shimmed the FPR. But I did not think that I had enough experience to question Joe. I did not want to look DUMB if I was wrong either.

markbr52 · #7 (**permalink**) 11-03-2009, 11:24 AM

In many areas Diesel Fuel is called "Fuel Oil". I am confident that is why Joe called it an oil line.

95_Dually · #8 (**permalink**) 11-03-2009, 12:34 PM

That makes sense then. I personally do not view the two as the same. Perhaps a shallow mind.

RubberDuck · #9 (**permalink**) 11-03-2009, 07:37 PM

I'm gonna bet Joe doesn't agree with that statement. And area's that call it "fuel oil" are just full of crazy people. LOL Just kidding, but I've never heard that.

c00nhunterjoe · #10 (**permalink**) 11-03-2009, 10:45 PM

well first off i called it an oil line cause it was late, and i wasnt paying attention...lol its an old picture and i am too lazy to change the label

but we do have "fuel oil" in these here parts....lol and my area is defintatly full of weird and crazy people. we typicly call fuel oil "offroad diesel" and "heating oil" anyhting you buy at the pumps is just "diesel" when you call teh heater guy he sells me "no 2 fuel oil"

rodneywar · #11 (**permalink**) 11-03-2009, 11:19 PM

I went to a gas station in western md diesel was called fuel oil Mind you the gas station was a mom and pop type. I am gonna back joe up.