i have 2 07 6.7 litre dodge 3500 hd trucks both are showing catalist 100% full these units have less than 4000 kl . as pipeline trucks they idle most all day and don't get to reach speeds over 30 kl per hour . i had the fast idle set up it is used for any extended idle time i would like to hear from anyone with this problem or any info as to a better way to eliminate this problem

 

once a tank take her out for an extended road trip. all you can do.

 

Your EGT's need to get up around 1300 to burn the Catalist out........ A run down the highway/back roads will help!

 

Why are they idleing so much? With the new DPFs, idle time will do you in quick. Is there anything about a manual regeneration in the Owners Manual?

 

We have 4 new 6.7's in our fleet and two of the have the same problem. The one actually was taken in to the dealer and they couldn't reset it, so they had to replaced the computer.

 

Are you guys running ULSD up there??

 

Cut em' out and straight pipe 'em!

 

Sorry guy those days are just about over....