2009 s60 515

Thanks for the replies all.
I called an excellent Detroit shop I have been to before yesterday, and got it booked in.
Put it on the dyno, and it was "only" putting 400hp to the ground. Not terrible for a 515, but it did have a miss.


Injector cut out test revealed number 5 injector bad.
Pulled into the shop, pulled the cover,and found the following...



On, you guessed it....number 5 injector! Not a clue how this happened on a 53k mile motor, but it got tore down last night, and new camshaft will be here today, along with all other bits n pieces needed. The cam has wear on the leading edge, and an actual low spot on the trailing edge, like someone went at it with a Dremel! Dont need calipers, the low spot is @1/16"!
Thank God for warranty.... We just rolled the truck outside last night, I fired the generator up, and to bed I went with a peaceful mind, knowing the bill is not mine...lol

Martin

 

Well, it still wasn't "right" to me, so over the past few weeks it has had (all under warranty):
EGR valve
Doser block
Fuel pump
Then on a different occasion;
6 pack of injectors
Test ecm fitted, no difference.

I had to leave after the 6 pack went in there, as I had to load a blade that morning.
They closed out the ticket, and went to investigating. I dropped the truck off there (Interstate Detroit, Altoona,Ia) after X mas, and left them to it. I totally trust the guys there on night shift so felt comfortable doing it this way.
Turns out, DeSean found in an old TSB, Detroit had some issues with the heads in '07 - '08. There was a casting "plug" that should have been removed upon final machining of the head, in the fuel rail IIRC. Turns out some were not removed, and a galley plug was fitted over it and forgotten about! Seeing as mine sat on a lot, unregistered, for 4 yrs, no letter got sent out by Detroit on it, and in it stayed in there until this week!
DeSean removed the galley plug, found the "plug" and removed it. This stabilized the fuel pressure on a mechanical gauge. We tested the fuel pressure before, thus the new doser block, fuel pump, etc, and it was bouncing all over the place, very erratic.
He is putting it on the dyno after a steam clean, to determine an oil leaks location for him to fix, then he will dyno it and test drive.

Figured I would update this in case anyone else is having the problems I had. I certainly would never have guessed to look in the back of the head!
Will update again when I get it back.

Martin