broke down 08 425

[clnhse]

help.... 12k miles and it broke down. first regen at 2k no ck engine light just the regen light.
Then 2nd at about 8k with ck engine light and alarm. I went to cummins and they did another one for good luck.
Again,,, 12k ck engine light then regen needed then regen required then 10 mph.......Towed to cummins ruined weekend.
I drove the exate same mh with much more power...Could it be plugged. 6.0 mpg. 43 foot newmar 3000lb toad?????
I only burn ULSF....I have changed filters twice but no better.....any help

[clnhse]

help.... 12k miles and it broke down. first regen at 2k no ck engine light just the regen light.
Then 2nd at about 8k with ck engine light and alarm. I went to cummins and they did another one for good luck.
Again,,, 12k ck engine light then regen needed then regen required then 10 mph.......Towed to cummins ruined weekend.
I drove the exate same mh with much more power...Could it be plugged. 6.0 mpg. 43 foot newmar 3000lb toad?????
I only burn ULSF....I have changed filters twice but no better.....any help

[doc]

I have the same engine in a Freightliner chassis. Sorry, but I have no idea what all you abbreviations mean (regen light ?)

We are 40 ft around 34 thousand and tow a Honda Element. Just of 2000 miles and getting nearly 8 mpg. Expect to get better when we get a few more miles on the engine.
Let us know what they find.

[clnhse]

regeneration....has yours ever done it?

[doc]

Ahhh OK. Never has. I have read about this, but it seems this occurred with many more miles than you describe. Good luck, hope you get it straightened out.

[Pigman]

You need to push those maintenance folks a lot harder. We've only had one Regen, and that was when we got the rig from the dealer. They had a habit of starting and idling it for extended times when showing it to prospective buyers.

We now have over 9,000 miles and haven't had it regenerate again. Sounds like your engine was in a power limiting mode at least once. A good Freightliner shop should be able to troubleshoot this. I'd call the Freightliner Help Line during normal business hours. You need to talk to one of their technicians there. They're good and will give you a straight story.

John