Ghost in my Isx15

Define filthy.

 

Define wreckered.

 

Think he means winds up on a hook.

But what is filthy fuel filter? Oil? Water? Algae?

 

Have you taken the filters apart, You may be looking at either Algae or Asphaltene depending on what it feels like. Have you inspected the fuel tanks?

 

No way that filter should be that dirty with that many miles. You should dip your tanks and see what's going on.

 

Drain both tanks, have them flushed then flush everything from the tank pickups to the filter and make sure there is no leaks.

I had this issues twice and there was so much crud that came out of the tanks that we didnt see looking into the tanks

 

This subforum might be a better place to post and ask for help
International Forum
@Heavyd might be able to assist with your question

 

Had a similar situation with a 2012 ISX 15 and no one could figure it out . Had a diesel mechanic Plug a fuel pressure gauge into the system and run it up out of the hood so we could see it while on the test drive. He also connected his lap top to see what fuel pressure the engine is calling for under load . While climbing a hill the engine was calling for
30,000 psi and the fuel gauge was barely at 5000 psi. They checked the fuel pump and one of the plungers was shattered and seized and the engine was only running on one plunger. It would sometimes throw a code under load but not always. The fuel pumps on ISX engines were very problematic on earlier emmision equipped engines. They had ceramic plungers that came apart and could take out an engine and they switched to steel plungers and they failed too due to the high pressure the fuel pump runs at. We had both designs in that truck and they both failed. It’s hard to replicate in a shop, you have to drive the truck and put a load on the engine . I would have them check the fuel pump. Ours was a 2012 , but I still think they had similar problems with 2015 ISX engines.