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Cross Eyed

Hey all, this is a bit of a "I did a stupid" post/question. Perhaps a cautionary tale for others:

We bought a 2009 International Paystar 5900i a few years ago with an ISX15 -allegedly hopped up CM871 with "485hp, good for 550 with a better cam" from an owner-operator, the truck had 700K on it, and still does since the Odometer failed...but that's a whole other problem.

This truck has actually been pretty solid for us besides the entire Engine harness being a rat's nest, diff exploding, etc etc.

I realize now we shouldn't have bought this basket case, but it's what we have and we aren't in the position to go buy a new rig. The EGR/DPF were intact until last week, when we may have or may not have unplugged and removed the DPF as a whole because my driver was complaining the truck had a horrible fuel smell "randomly" (Regen, I think) throughout the day, it got to the point where he was too sick to drive the truck, (we could never duplicate the problem though). We tried everything that we could think of, inspected everything and could not find any issues, and so we just threw a hail mary and ripped the DPF off. The truck ran great! no smell, driver was thrilled, for a few days, then as you can imagine... The Truck went into limp mode. Go figure.

So, with my tail between my legs, I am going to have my fabricator repair the exhaust and we are going to remount the DPF... Which leads me to my question, I have Zero history on the engine or Emissions, Should we spend the $$$ on a Filter cleaning at the dealer, throw it back on, and hope the smell goes away? Maybe the filter was plugged? Can a plugged filter cause the fuel smell/Fumes in the cab? or should we consider de-mandating the DPF system?

Side note: I did find some really nice write ups for all the different sensors and egr tune ups (thank you) so if the smell is there, we will tear into all of that.

Rawze

Unfortunately about half your post there heavily implies ... this is how NOT to own a truck.

There is so much wrong with that post and what you stated that I am not even going to begin to break it down. It would require an entire lengthy conversation.

I PM'd you my number if you want to talk about your situation there in detail.

mikkhh

Regardless what you do egr tuneup is needed - clean intake, egr cooler, replace imap and back pressure sensors with genuine brand new ones.

Then look up the filter cans, was there any soot on tailpipe side? If yes then filters are toast. Only proper solution is new genuine dpf. If it is not sooty you can try your luck with having dpf dry cleaned in a kiln. Pressure washer willl wreck dpf, profession wet cleaning too.

If you happen to live in Africa or other developing parts of the world with high sulphur diesel you can mandate'd he truck. Since high sulphur diesel will damage those filters and finnicky systems no matter what and it is legal to do so there and it is better for environment since when sulphur reacts with those catalysts and dpf s there will be sulphuric acid formed and that will cause acid rains.

That case pull the programming and maybe somebody trusted from here can do the programming .

How rest of the truck looks like? Since wiring loom on engine was gone, most likely truck has rust issues and also there will be lots of faults on chassis wiring side too. What about brakes? How much for new genuine truck brand brake drums/discs shoes/pads?

Has the engine ever been overhauled? If not you are looking to spend 20-40k on repairs in a reputable shop. If engine was overhauled then most likely it was not done correctly and you still have to spend more money than the truck is worth. Is it worth it to spend lots of money on a endless money pit truck? Newer truck with less issues is CHEAPER in the long run. If buying new truck for daily trucking does not make financially sense then something is wrong with the business. New truck has to be profitable to make it worth, if you can buy used and know how to fix things yourself you can come up ahead cost wise. Finding good quality workshop who knows what to look for and when to replace is not easy and is like finding a needle in the haystack for most people.