what would you do c 15 cat problem?????

It being a 2008 cat I assume it's a SDP serial engine, I would cut your losses. They are tough engine converted but like they are....a big yellow boat anchor in my eyes. If you have your heart set on it I would drag it home and do a 6nz conversion. It would be much cheaper and you would be much happier.

 

You could buy a good used 6nz ready to swap much cheaper than that and have something you can work. The problem with SDP motors is once you fix all that it may be a year or two days down the road you are going to lose a rocker bolt and it will go thru valve cover or head or both and then make it's way to crank and right on out the side of block. I have seen it happen many times with the acerts. They all aren't bad, but when they are have a fat wallet. I only work on peterbilts, I know the 6nz will plug directly to the truck side harness with no modification. 08 and newer require swapping pins 21 and 11 for fan which is a five minute job. Freightliner should be the same.

 

He'll have to find some trustworthy independent shop out on the road to do that swap if not hook and tow it home to a trusted independent. Truck dealers and CAT houses will not do it the fines are $10's of thousands and cost people jobs. Won't be cheaper than a platinum paying someone else to do the work. It's going to be expensive even doing a patch job. Was in op's shoes a couple of years ago. I decided to rebuild and roll on for several more years. With it being a Freightliner Century and SDP engine to boot would probably make my decision though. Those motors are good for breaking the bank and there are several guys on here who can tell some stories.

 

Driver you bought the worst model year for cat ever. Cut you losses. lossing 10k on trade in is a lot better than 24k you will never recover. Make a business decision not a drivers decision.

 

Do a search on CAT SDP here and on google then decide if you want to platinum it. Warranties are great when somebody else foots the bill. Problem is they don't create any cash flow.

 

Yeah your ordinary cat or Peterbilt or freightliner dealer is out of the question. Like I said the first time cut your losses BUT if you have your heart set on it you have options that don't include being in the shop for the next five years like the SDP would leave you. I still believe you could do a swap and come out better than the patch job.