Signature Series 600 Issue

@OLDSKOOLERnWV might be able to help you. Think he’s got a Big Cam. A Signature 600 is a version of an N14, am I correct?

 

Dangit, CRS strikes again..........I swear there was another thread dealing with this same exact problem recently, although I don't remember what engine. Anyone else remember?

To the OP, it's not making oil is it? Probably not as many folks have looked at it. I'd probably grab an oil sample just to be sure.

 

@Big Road Skateboard , we're you helping in the other thread?

 

Checked tank vents?
Does it have a fuel temp sensor?

 

No an sig 600 is a pre emission isx.
In the summer does it do it regardless of fuel tank level? Or is it always when the fuel tanks get low?

 

Not me (that i remember anyways) and I can't remember the thread.

@Diesel Dave maybe, @Goodysnap? I can't remember who the ISX guys are here

OP, what is the fault code, what is the fuel pressure, and have you verified fuel pressure when this problem occurrs?

 

He has a signature 600, it’s a pre emissions engine, I have a 2016 ISX 15. He having the similar issues that the electronic CAT’s (3406)had once the engine start working hard. And I can’t remember how they resolved it. It’s in here somewhere. I do remember them running a clear see through fuel line that they could see if the fuel system was getting air in the system cause that’s probably what the OP is getting.