Hey All!
I have a 2012 Cascadia with a DD15 725k miles and I discovered a oil leak after pre tripping this morning. I’m out on the road heading home. To hopefully find the culprit, it looks like it is a leak in front or on top of the oil pan the front vertical part of the oil pan is wet. I have been in the northeast so I have be having to run the truck all night to stay warm. I change oil every 15k miles.
In July I did have the pick up tubes in the pan replaced. But never noticed any thing until
Based off the picture has anyone had a similar issue and or what are some possible things to look for that may be the issue? Seals, gaskets, fittings, etc. cracked oil pan?
DD15 oil Leak
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by reelheavy, Jan 27, 2022.
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Judging by the location it is probably leaking from the crankcase breather. Here’s a good video about changing it.
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Ck. For sealing washer under drain plug if it was left off last oil change it maybe leaking from around plug?
reelheavy Thanks this. -
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How hard is it to get under and look? If it is way too hard, take it to any truck stop that has oil change pit and ask mechanic to look where it is leaking.
LoneRanger Thanks this. -
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More pics drain plug looked good. I think the culprit is up where I highlighted the picture in yellowAttached Files:
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Looks like front seal. Probably didn’t quite get it right when they had the oil pan off for the seals on the oil pick up tubes.
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