Howdy Jeeps dad
try re-posting over in the 'CRD...Love that Torque' that's the main Diesel section.
try including a location - in case someones close
and do you have proof the timing belt was changed?
mileage doesn't really matter - it's 10years old the belts are designed for 6.
completely black oil is normal if the EGR still works
when you're bored -the Noob guide has a lot of information
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=54207
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2005 CRD
stuffSkeptic quod gratis asseritur, gratis negatur