DT 466-E problems

[uloadit]

I have a 2006 DT 466-E with a engine brake, I have no codes it runs ok at start up but about 15 min later it will start to sound like all 6 cylinders bog down and lops with a heavy cackle like it fighting something. The reading I get said it has no axl pressure when it does this but the oil pressure gauge I put on it says it has 8000lbs steady ,I cant find the ICP on the head anywhere. When it goes into this fit the oil line I have tap into it flexes at the same time,like the oil pressure is building up to much pressure in to the head and then will relax and flex up and then relax . What is strange is it does this every 7 seconds then straighten out then goes back into a fit ( dies down and has a heave cackle ) then straightens out when it warms up it will eventually go away. All 6 cylinders do this at the same time.

 

[nevrenufhp]

When it does a steady fit like that every set amount of time, I would be starting to think of an EGR issue first. But yes, an odd issue indeed. That's the bad part of such a new rig, almost everything has to be done at the dealer.