CAT 299D Fuel leakage code...

[ozarkag]

I saw the reference to fuel supply, and guessed that possibly the cracked head was a cut and paste from a different engine. . .

7. Cracked Cylinder Head

A. Look for signs of damage to the internal passages for the fuel supply to the injectors in the cylinder head.

Edit: Are you replacing the high pressure supply steel lines to the injectors themselves? Actually,
by the book they get replaced every time you undo them. Not that we, (or I suspect most dealers) do that, Its a CYA for the manufacturer. Not to beat a dead horse on this line of reasoning, just don't want to miss a possible cause.

 

[Makers Acres]

I saw the reference to fuel supply, and guessed that possibly the cracked head was a cut and paste from a different engine. . .

7. Cracked Cylinder Head

A. Look for signs of damage to the internal passages for the fuel supply to the injectors in the cylinder head.

Edit: Are you replacing the high pressure supply steel lines to the injectors themselves? Actually,
by the book they get replaced every time you undo them. Not that we, (or I suspect most dealers) do that, Its a CYA for the manufacturer. Not to beat a dead horse on this line of reasoning, just don't want to miss a possible cause.

Ya, that is probably is true. I looked through the parts manual to trace the fuel path and that was the only place I saw it go through the block on my engine.

No, I am not replacing the high pressure lines. That seems a bit ridiculous to me. I am changing the o-rings and copy washers related to the injectors. The fuel lines seem to be metal flared on flared fittings for the most part.

 

[Nige]

o, I am not replacing the high pressure lines. That seems a bit ridiculous to me.

Were you aware that the high-pressure lines to the injectors are regarded as being single use only and so should be replaced every time they are removed.? This is because the fuel pressures in that system are so high. The rail pressure relief valve opens at just over 36,000psi, operating pressures are normally 30,000+psi.

See attached procedure.

Question: How many times have those lines been removed and reinstalled while you have been working on diagnosing the fuel leakage issue.?

 

[jrock3]

So what was the fix for the
523602-0 – “Aftertreatment Regeneration Frequency: High.” ???

 

[Nige]

So what was the fix for the
523602-0 – “Aftertreatment Regeneration Frequency: High.” ???

A DPF Regeneration Time Interval Reset must be performed when the 523602-0 High
Frequency of Regeneration code is active. Performing this reset will change this code from active to
logged. To do that requires ET.

 

[jrock3]

So what was the fix for the
523602-0 – “Aftertreatment Regeneration Frequency: High.”

A DPF Regeneration Time Interval Reset must be performed when the 523602-0 High
Frequency of Regeneration code is active. Performing this reset will change this code from active to
logged. To do that requires ET.

That code is automatically generated based on a set number of run hours? So I'm assuming nothing was wrong with the machine. The dpf just needed to be serviced, re-installed and a reset performed as part of the regular maintenance. Did they happen to recall the fuel dilution rate on the oil sample and was a product status report uploaded to this form?

 

[Nige]

That code is automatically generated based on a set number of run hours?

Not as far as I can see. It looks as though the Event name is a clue. - “Occurs when the time between completing an active regeneration and starting another active regeneration is within a 30 minute time frame.”

 

[jrock3]

That leads me to believe the root cause of this code was never identified, correct?

 

[Nige]

I have no idea. If you read through the thread you will see it’s not my machine. Only the owner can answer your question.

 

[jrock3]

I understand. I was just trying to get clarification. I read the post in its entirety and it still left me with questions. It seemed like lots of parts changing without verifying the fault. I believe this code plagues a lot of machines in this genre.

 

[Nige]

I have read through the entire thread again and the machine owner never actually had a 523602-0 Event happen on his machine. The only time that it was mentioned was in Post #51 on Page 3 in a text regarding how to troubleshoot fuel in the engine oil. I suggest that you read that particular post again.

What the machine owner was chasing was actually a 1239-1 Event.

 

[rsantos3]

Sorry for the late reply

Yes you can buy the replacement oem pressure sensor from the manufacturer/ dealer that makes the sensor.

Example: Bosch - Denso

You will have to inspect the sensor and get the information off of it

How would you know the pressure sensor part number and manuafacture? CAT only gave me for the whole rail assembly 458-9390. They didnt have a part number just for the sensor itself and i dont see one on actual sensor

 

[ozarkag]

Rail and sensor do sell as an assembly. These are made by Denso for Kubota, for Cat. . . Following link is for a Kubota rail used in certain Bobcat models, and is not a cross to the Cat 458-9390. Does give some info on Denso.

7024396 | Fuel Injection Fuel Rail (1J574-50604) - Diesel Pro

Order 7024396 | Fuel Injection Fuel Rail (1J574-50604) from Diesel Pro today and get free shipping on orders over $500!

mydieselpro.com

 

[jrock3]

Has the sensor Been checked for proper operation? Power, ground, signal? I've once seen a restricted pickup inside the fuel tank.

Signal voltage KOEO ?
Signal voltage during cranking?
Signal voltage during Idle?
Signal voltage during Snap Throttle?

 

[Marin1991]

I had a crank no start on a 2018 299d2. Turned out to be the high pressure pump.

Hi, I have same issue with my 2018 cat 272d2, crank and no start, no smoke, how did you understand that the pump is bad?

 

[ColdBlackWind]

Hi, I have same issue with my 2018 cat 272d2, crank and no start, no smoke, how did you understand that the pump is bad?

I acquired the CAT ET software and ran the diagnostics. It showed low cranking fuel pressure. I made sure fuel was getting to the HP pump by cleaning fuel tank, changing all filters and installing a new priming pump and filter. That narrowed it down until I had high confidence it was the HP pump. If you work on your own machine you need CAT ET and SIS. I have a great resource if you are interested.

 

[Marin1991]

I’m working with ET also, the pressure is 4600 psi on mine when cranking

 

[ColdBlackWind]

I’m working with ET also, the pressure is 4600 psi on mine when cranking

I can’t remember right off hand. Sounds like that was in range for cranking.

 

[Nige]

I can’t remember right off hand. Sounds like that was in range for cranking.

Didn’t you have an E1239 Event for fuel leakage on your engine.?

 

[Nige]

I can’t remember right off hand. Sounds like that was in range for cranking.

Could you possibly hook up ET to your machine and take a look.?