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Old 08-14-2007, 03:24 PM   #1
YLH
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International DPF Issues

We have a new International with the Maxxforce DT engine. Being an '07 it is equipped with a diesel particulate filter (DPF) which is giving us fits. It has been in the shop twice during it's short life.

Just wondering if anyone else is experiencing DPF issues with the new Internationals.
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Old 08-14-2007, 04:42 PM   #2
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I haven't seen one come in yet for DPF issues and there are quite a few of them running around. Have you been doing the regens on it when it is telling you to?
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Old 08-14-2007, 04:51 PM   #3
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I was at our local Cummins shop a couple of weeks ago, they had about a dozen DPF's in a pile out back.

They figured the trucks had LSD run though them and the regen couldn't keep up.

I've heard using CI-4 or CI-4 plus oil can cause problems too (instead of CJ-4)
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Old 08-14-2007, 06:19 PM   #4
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Yeah, I know that some fleets that have their own fuel stations have run lsd through them and not ULSD and caused problems but I haven't seen them in the IH's yet.
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Old 08-15-2007, 06:00 AM   #5
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DPF's and CATs will be trouble. We have been running them for over 7 years now and they continue to be high maintenance items. The active monitoring does help prolong their life, but the DPFs will get plugged. The CATs are for the most part fairly reliable.
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Old 08-15-2007, 03:48 PM   #6
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Quote:
Originally Posted by 2003EDGE
I haven't seen one come in yet for DPF issues and there are quite a few of them running around. Have you been doing the regens on it when it is telling you to?
That is one of the things that has us scratching our head. So far we haven't had an alarm/notification to perform a regen. The truck just shuts down. No warning. We are planning to begin regular manual regens but I'm afraid that may hide the real problem. But I need the truck on the road!

You may be able to answer another question for me. In the manual INTL mentions the DPF and also a catalytic converter. Are these two seprate components or just two names for the same component?

Thanks for your help!
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Old 08-15-2007, 05:30 PM   #7
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There is still a catalytic converter in the muffler like the older model trucks.
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Old 08-16-2007, 02:40 AM   #8
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Quote:
Originally Posted by 2003EDGE
There is still a catalytic converter in the muffler like the older model trucks.
they are 2 seperate and different things. OUr international dealer said cat was having some problems, international a few, less then cat, cummins and mercedes flawless.
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Old 08-17-2007, 06:17 PM   #9
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Yesterday we attempted a manual regeneration as a preventative step but it wouldn't allow us to perform. We followed the steps exactly. The DPF indicator light was not on so we think it will only allow a parked regeneration when the indicator has at least reached level 1.

Today the indicator did illuminate. The driver successfully began a parked regeneration. The regeneration ran for about 45 minutes. The indicator increased to level 3 and eventually level 4. The owner's manual states that you should shutdown the engine when it reaches level 4. That is what we did and we are now waiting to hear back from the dealer.
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Old 08-24-2007, 08:55 PM   #10
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How are you using this vehicle?

Under MOST conditions, customers (operators) will NEVER need to perform a "Parked Regen".

If you use as little as ONE TANK of LSD instead of the REQUIRED ULSD, you can run into these problems. As others have also pointed out, the incorrect OIL (anything BUT CJ-4) WILL cause this.

Take both a fuel and oil sample. I'd bet the wrong stuff is in there.
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