Won't Start DD S-40

[luvrbus]

That is a tough little engine regardless of it's parents, now after 2002 with the EGR I wouldn't give 25 bucks for one 

[moosemanusa]

We have the Eldorado version of it.. looks the same but different chasis..  luckily its 01 so pre EGR..

Powerfull girl, will actually nudge you back under accerlatation..

[Lostranger]

I love my S-40. Easy to start. Plenty of power for us. Runs like a champ. Until now.

I did not know about the EGR issue before I got this bus. Glad we dodged that bullet.

[azdieselman]

Low ICP is not a fuel pressure issue. The sensor should be facing you on the drivers side along the bottom of the head in the HPO rail. Unplug it and see if it starts.

The check ball you are getting is in the rock catcher, The old one will be black, New will be yellow. Change is for ULSD.

Do you have any type of scan tool available?

Do the injectors "buzz" when you turn the key on?  You might have to disable the hydra-boost pump, if equipped.

[Lostranger]

Low ICP is not a fuel pressure issue. The sensor should be facing you on the drivers side along the bottom of the head in the HPO rail. Unplug it and see if it starts.

The check ball you are getting is in the rock catcher, The old one will be black, New will be yellow. Change is for ULSD.

Do you have any type of scan tool available?

Do the injectors "buzz" when you turn the key on?  You might have to disable the hydra-boost pump, if equipped.

Engine did not start with sensor unplugged. Will changing check ball help anything? What is ULSD? No scan tool. Haven't noticed any buzz, but we will check for that. My diesel mechanic friend could not make it this evening. We're shooting for tomorrow late. What do you think is the problem?

Thanks for your post.

Jim

[eagle19952]

Engine did not start with sensor unplugged. Will changing check ball help anything? What is ULSD? No scan tool. Haven't noticed any buzz, but we will check for that. My diesel mechanic friend could not make it this evening. We're shooting for tomorrow late. What do you think is the problem?

Thanks for your post.

Jim

Ultra Low Sulpher Diesel

[luvrbus]

Jim,Kevin is a sharp guy on the IH engines he just doesn't post here often 

[azdieselman]

I should have already asked this, Is the oil level correct?
Does the oil pressure gauge on the dash rise while cranking?

[Lostranger]

I should have already asked this, Is the oil level correct?
Does the oil pressure gauge on the dash rise while cranking?

Oil level was below add mark when I first tried to crank it yesterday morning. My alternator leaks. I checked and topped it after it failed to start. Took about 5 quarts to reach full line. Topped coolant level at same time. I have a cold water leak.

Don't know about pressure gauge. I'll check that after it gets to be daylight.

Thanks again.

Jim

[azdieselman]

What were the other codes you retrieved?  I want to establish whether you have a fuel or ICP issue, or possibly a sensor issue.

A scan tool would be quite useful, But I think we can narrow it down with some basic checks.

Is this a rear engine T drive?  Is there a rear start panel?

[Lostranger]

What were the other codes you retrieved?  I want to establish whether you have a fuel or ICP issue, or possibly a sensor issue.

A scan tool would be quite useful, But I think we can narrow it down with some basic checks.

Is this a rear engine T drive?  Is there a rear start panel?

Rear engine, Tee drive, rear start panel does not work. I don't have the code list with me. Following the funeral I'm conducting today, I'll go home and get them. Will be late afternoon Eastern. Thanks again for your help. I can tell you know what you're doing, and I don't take that lightly.

Jim

[moosemanusa]

If this is just an International DT466 (someone posted this, also that it has a CAT ecm)

Would the Cat ET software work?

I'm not sure how fininky the ECM's are, for example the DDEC IV will look out the engine after a low oil state..

Sometime the rear starts will give different results over the front starts (no clue why but seen it happen)

If I had the model of the ECM I could find out for sure..

[luvrbus]

His engine will be the HEUI injection system

[Lostranger]

The oil pressure gauge appears to move a tiny bit during cranking, but most of my gauges are screwy most of the time. I can't be certain about oil gauge movement. The oil gauge always reads lower than I think it should. When the dash lights are on, the oil, and fuel gauges read even lower than they normally do. The water temp gauge reads higher than normal with dash lights on.

This bus is multiplex.

Just counted codes again with help, and these what I THINK I have. One or two could be off. It's a confusing process with such a long list.

124, 125, 124, 325, 113, 122, 211, 215, 323, 322, 321, 333, 225, 236, 626

It's the last two that confuse me. I cannot be certain of the sixes. They threw me while I was counting.

If necessary, we'll read them again. Let me know. Thanks again for any help.

Jim

[moosemanusa]

Jim,

**I may not be right, I can only compare to units I know**

The Multiplex network system is not linked to the ECM that much.  It simply provides communication for other systems (Door open, wheel chair lifts, lights, other electrical).

Really need to know the ECM Make / model, will say on the ECM itself usually mounted on the block).  If there's no sticker, snap a picture of the ECM.