Paccar defective engine lawsuit.

Have you seen the new liners they have that is designed to stop the carbon packing?

You mention a good point, the defective parts is not built by paccar, I see the loop hole right there.

 

I have not seen them, all of ours were done under warranty, so they came back "fixed".

@Guntoter I highly doubt that Paccar is making their own aftertreatment systems, if they are, they are doing under someone else's patents because they are identical to the Cummins systems. We have several of both engines in 2014's and they are the same. My real point to the post what that from what I see, the MX13's are more reliable than the Cummins. When there are fleets like ours that do get more reliability, it'll be in Paccars favor in court.

We have 4 MX13's with ~300,000 miles, not one has any engine work. We have 9 ISX's, 7 got new cylinder packs and 5 of those needed a head under warranty, all between 200-275,000 miles. The other 2 only have ~150,000 miles and are starting to use oil, so it wont be long before they need cylinder packs and possible heads too.

Both engines have about the same amount of emissions issues, but as far as engines themselves, the MX13's are more reliable. They also do get better mileage. So when I say that our Pete's with MX engines are more reliable than the ones with ISX's, I'm not lying, it's 100% true. Don't get me wrong, I'm not saying what you're doing is wrong, manufacturers need to be held accountable and the EPA needs to loosen the grip a little to allow them to figure this stuff out better before throwing at us. This is going to be a tough battle though, but Cummins, Detroit and several other manufacturers are just as, if not more guilty than Paccar.

One other thing to think about, this is a pending lawsuit, not a goof idea to be discussing it in a public forum.

 

What are your isxs....2250?

 

2 of them are 2250's, the rest are 2350's.

 

Off topic but did you have any of those ceramic fuel plungers (I think they were) let go.....?

 

No, they were recalled and replaced before they let go. I've heard that it can cause serious damage though. That was only on the CM2250's. The 2350's had the new style. They also had a recall on all of them that replaces the oil bypass valve. They weren't clear on the exact reason for this but my suspicion is that the pump failures were in part due to loss of oil pressure when the filters clogged for excessive soot in the oil. It's just a hunch, but I think new bypass valves open sooner to bypass a plugged filter and not starve the pump for oil.

 

So far when my Detroit goes into derate with a DEF system issue, it doesn't limit my speed, just power. It will only get about 15 PSI of turbo boost so it just makes it hard to maintain any speed.

GrapeApe, we've had lots of problems with our 2011 ISX. Lots of injectors, 2 egr coolers, 2 fuel pumps, air compressor and some def system parts. But there was one at my dealer tonight that dropped liners and it is only a year old.

Also a brand new Western Star 5700 tractor with only 25,000 kilometers that blew a front rear-end because it never had any oil in it!! Factory or bad dealer PDI???

 

It actually does get better fuel mileage. I would have believed it either to the extent that they are saying but I drove that orange Prostar in the article and saw for myself.