International T444E not starting

[Columbo]

So, in a previous thread I asked for advice for a medium duty farm truck for my brother’s farm. He found a purchased and International 4700 with the T444E. Truck seems to be well maintained, started easily and ran great for the 3 hr drive home.

I looked it over a day or two after he brought it to the farm, it was hesitant to start then and required multiple cranks to start (at the time we attributed it to cold weather). After it started, it ran smoothly and I drove it a bit. Nothing unusual driving, good power and ran smooth. After I parked it, the truck sat for a week or so before my brother tried starting it again. Now, it will not start.

Truck cranks freely, battery and starter seem fine. Just a little light grayish smoke from the exhaust when cranking. He changed the fuel filter, cleaned the pre-strainer and put a gauge on the low pressure test port after the fuel filter. 40 psi on this port, which the manual indicates is normal. Thoughts on what to test next? I’m thinking the injector pump has air in it or the shut off solenoid is faulty. Thanks to @mekanik we have a service manual for this engine and will be working through the troubleshooting process.

 

[funwithfuel]

Check your pre heat relay. See if your getting voltage out to the glow plugs

 

[Columbo]

Check your pre heat relay. See if your getting voltage out to the glow plugs

Interesting you mention this. According to the service records it’s been replaced once before, so clearly it was problematic at a previous time. We’ll add this to the list.

 

[funwithfuel]

Common issue, you said you have smoke. Check the valve cover pass through, it will melt at the connections. Do you hear the "injector cackle"?

 

[Steve Frazier]

I don't know if IH uses a similar system but the Ford version had issues with the cam sensor. It sends a signal to the injectors on when to fire. Symptoms are similar to what you describe. Those of us who had the PowerStroke kept a spare in the glove box. It's located in the side of the timing cover and takes a 10mm wrench to replace.

 

[Jimbo]

I will expand a bit on Steve's comment: if your tach is moving while cranking, cam position sensor is ok.
If truck has a block heater, plug it in overnight, and report back.
Find the ICP(injector oil pressure switch) top of cylinder head, driver side, unplug it--computer will default to spec and start if switch is bad
Very possibly injector fuel pressure regulator, located under fuel bowl top of engine

I will find a pic of the engine with sensors marked and named and post up

 

[materthegreater]

Can we have a picture of the whole top of the engine? I'm not sure how similar that is to my Ford 7.3L but if it's the same, the first thing I do when I get a crank/no-start situation is remove the connector from the ICP (injection control pressure) sensor on the driver side head, and see if it starts that way.

Edit-oops Jimbo beat me to it...

 

[materthegreater]

This might help also.

 

[Columbo]

Thanks guys! I’ll get better engine pics up soon!

 

[Columbo]

Common issue, you said you have smoke. Check the valve cover pass through, it will melt at the connections. Do you hear the "injector cackle"?

The only cackle I heard was from the chickens running around…. But, tell me more!

 

[funwithfuel]

When ICP is high enough to actuate the injectors the purge or surge of oil combined with the solenoid actuating makes a distinct sound referred to as cackling. At least it was 30 years ago.

 

[Columbo]

When ICP is high enough to actuate the injectors the purge or surge of oil combined with the solenoid actuating makes a distinct sound referred to as cackling. At least it was 30 years ago.

I can’t say I heard this, but I’ll listen for it next time I’m working on this truck. Thanks!

 

[Columbo]

More pics of the engine:
View attachment 1743592461613.jpeg
View attachment 1743592633571.jpeg
View attachment 1743592652044.jpeg

 

[Truck Shop]

Main issues I ran into--ICP or wiring harness--which was a main connection at right valve cover
for engine harness.

 

[Columbo]

Let’s try this photo thing again:

 

[funwithfuel]

This a 47 or 4900 chassis?

 

[Columbo]

More:

 

[Columbo]

This a 47 or 4900 chassis?

4700 to my knowledge.

 

[materthegreater]

Unplug this sensor and see if it starts

 

[funwithfuel]

Unplug this sensor and see if it starts

View attachment 337624

What will that do? That's just the oil pressure sensor. That reservoir under that sensor better be full though.