DPF and cummins ISC

astikhossw · Apr 7, 2011

I just had all my injectors replaced and DPF cleaned out with only 105000 miles and a little less than two years.Has anyone else had this problem so soon in this engines life or can i expect to have the same problem in a couple of years.If you have had this problem what did they say caused the injector failure I know that the injectors caused the DPF to soot up,but what caused the injectors to inject to much fuel into the engine.

shadow7663 · Apr 7, 2011

I think Cummins has a bad supplier of injectors. I replaced all of mine last year and had 2 go bad in a month. Took it back in and watched the mechanic go through 4 more bad injectors off the shelf before finding any good ones!

Do you have the caps fuel system?

greg334 · Apr 7, 2011

DPF would not have CAPS. Its CR.

Are you guys idling at all? I mean for say 10 hours at a time?

astikhossw · Apr 7, 2011

I have idled over the winter for around that amount of time.

shadow7663 · Apr 7, 2011

No idle here except normal warm up

davekc · Apr 7, 2011

We have one of these and are less than impressed. I think they were rushed way too fast into production to satisfy the tree huggers.
At roughly 100k, all the injectors have been replaced. One a second time. New turbo, new turbo actuator, removed and cleaned exhaust, replaced EGR, and re calibrated the re gen several times. All under warranty but still not impressed.
Seems like any engine manufactured after 08 is riddled with re gen/emissions and sensor problems. Or, I haven't found anyone yet with a trouble free truck.

astikhossw · Apr 7, 2011

Wow, so now that my warranty will be running out soon am i going to have end up paying out my pocket when this problem pops up again in 100000 more miles.Has anybody heard of a permanent fix for this problem.Are what else can we do.

davekc · Apr 7, 2011

I would make sure sure you have full documentation with Cummins to avoid paying anything. Especially a ongoing problem. At this point, it doesn't seem like they have a fix. I wouldn't be surprised to see a recall if they find one.
Ours have been to several Cummins dealers and most say the same thing. "No real fix".
On the upside, they say they aren't as problematic as the large ones with the urea system.
Not sure that is a comforting thought or not?

greg334 · Apr 7, 2011

Dave, for some reason recall and cummins are not words you see together often. They have claims against them with the killer dowel pin and the 6BT/ISB engines and refused to do anything about it, even under warranty.

davekc · Apr 7, 2011

Trying to be optimistic. Hard telling where it will all end.

astikhossw · Apr 8, 2011

Talked with a cummins tech.rep. yesterday and he said in fact that they had some problem with there injector and that the problem has been resolved.He also talked about refuse trucks is were they are seeing most of the injector problems.I asked well what about the over the road expedite trucks,he said they had not been much of a issue,due to the constant running above 65 mph and having the system recalibrated,but low idling is reccomended.He also talked about having the fuel filters instaled dry and using the electric fuel pump to prime the filter,just turn the key on three time for 5 minutes and that should be enough to prime it.

greg334 · Apr 8, 2011

Yes it is a mess, maybe if we would get a chance to scrap the entire idea we need perfectly clean diesels, than life would be better in the long run.

Jasper_jpr · Apr 8, 2011

We have 3 09's with this config and all 3 have been a problem. Having driven 2 of them and having to deal with the problems and the Cummins dealers regarding the problems I would not own one. We have found most of the shops we have had to deal with have no empathy for a guy trying to make a living in these trucks. As far as Cummins helping with repairs after the warranty runs out even with documentation supporting the same recurring problems I don't see it happening. We have had to pay for repairs (DPF cleaning and ECM updates) even while under warranty.

We had the first truck we drove go into engine protect mode while running 60 mph on the interstate, in less than 60 seconds after the light came on the engine shut down. we were in the left lane when it came on and was only able to get to the right lane through traffic when the engine quit. The rest of the way to the berm had to be done with a dead truck.

After several starts and shut downs we were able to get off a nearby exit. We were loaded at the time so the truck was towed to a cross dock and the load transfered then towed to a dealer. The tow bill was about $1100 plus the cross dock fee plus the fee to a different carrier that was nearby to finish delivery. Turned out to be the sensor on the coolant recovery tank failed and Cummins says if the tank goes low that the engine is to be shut down even thought the engine was running cool. The sensor was replaced under warranty $54.00. just another one of Cummins goofy things.

If you have one of these trucks good luck and if You are looking to buy one think hard about it and beware. Our owner is dealing out of the ones we have, I believe he figures you can't afford them (repair cost plus revenue loss from downtime) after the warranty runs out. We will be in a class 8 truck with a Detroit in a couple of weeks to get away from the Cummins. We hope it won't be an adventure in learning about the Detroit shops.

Kenn

jansiemoo · Apr 8, 2011

Jasper_jpr said:
We have 3 09's with this config and all 3 have been a problem. Having driven 2 of them and having to deal with the problems and the Cummins dealers regarding the problems I would not own one. We have found most of the shops we have had to deal with have no empathy for a guy trying to make a living in these trucks. As far as Cummins helping with repairs after the warranty runs out even with documentation supporting the same recurring problems I don't see it happening. We have had to pay for repairs (DPF cleaning and ECM updates) even while under warranty.

We had the first truck we drove go into engine protect mode while running 60 mph on the interstate, in less than 60 seconds after the light came on the engine shut down. we were in the left lane when it came on and was only able to get to the right lane through traffic when the engine quit. The rest of the way to the berm had to be done with a dead truck.

After several starts and shut downs we were able to get off a nearby exit. We were loaded at the time so the truck was towed to a cross dock and the load transfered then towed to a dealer. The tow bill was about $1100 plus the cross dock fee plus the fee to a different carrier that was nearby to finish delivery. Turned out to be the sensor on the coolant recovery tank failed and Cummins says if the tank goes low that the engine is to be shut down even thought the engine was running cool. The sensor was replaced under warranty $54.00. just another one of Cummins goofy things.

If you have one of these trucks good luck and if You are looking to buy one think hard about it and beware.

Kenn

Wow. Puke tank gets low and the truck shuts down on the interstate!?!
Too many of these incidents- it'll be like the Toyota accelerator issues.

Except no one will care because it's not a car.

Still think I smell a class action suit.

golfournut · Apr 9, 2011

And folks bash the Hino for their problems!

Your best bet, hire a vet! Please.

astikhossw · Apr 13, 2011

I found out today on my injector repair the cummins rep.only recommended replacing my injectors with reman.or rebuilt on a warranty repair.Question is shouldn't i have recieved new injectors on a warranty repair,with a warranty on the new replacement injectors.

davekc · Apr 13, 2011

We had ours replaced with new ones. Of the new, one was leaking. Had to have that replaced. It may be because they don't have new ones on the shelf and have to order them.