Thanks, everyone. I do want to try to eliminate the possibilities of other problems first (before GDE) in case there is a larger problem.
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You cannot tell anything from above on the airbox to turbo hose as the normal failure is a tear on the bottom just in front of where it connects to the turbo. You can probably check it on a lift otherwise you have to remove it.
FYI I have a new one I can part with if need be.
I'll be checking the hose today and if I need one, will PM you. Thank you!
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This could also be an indication of worn rocker arms. But there would be other symptoms such as low power and black exhaust smoke.
The possibility of worn rocker arms does concern me, because I'm seeing a fair deal of black smoke and sometimes some turbo lag. From what I have seen, the PO was
not kind to this CRD. Is there any simple way to check before tearing everything apart?