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Diesel in oil

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Funkyvicar View Drop Down

Joined: 09 Jun 20
Location: West Midlands
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    Posted: 09 Jun 20 at 14:38
help needed please 

I have a vw T5 2.5 AXD last year I had the Injectors checked because I had diesel going into my oil 2 injectors were adjusted and new seals were fitted. the problem still occurred so I brought a brand-new new tandem pump and after 300 miles my oil light was flashing and beeping once again!!! And I still have Diesel going into my oil!!!! Any suggestions would be appreciated 
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T5 TDI View Drop Down

Joined: 05 Nov 05
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Post Options Post Options   Thanks (0) Thanks(0)   Quote T5 TDI Quote  Post ReplyReply Direct Link To This Post Posted: 09 Jun 20 at 19:46
Welcome. Smile   I'm afraid your fix isn't going to be cheap.  Assuming the new tandem pump isn't faulty it could be the injectors rocking in their bores.  That could make the new seals leak.  If it is that then this should have been picked up when the injectors were done.  I don't think there is a guaranteed repair for that problem and a new head may be the only cure.

However if everything else is perfect then a crack in the fuel gallery in the head could do it.  I've never seen it but I have read that it can happen.  A diesel specialist should be able to pressure test for this but the result is the same. Cry

I hate to say this but a second hand engine (if you can find a good one) might turn out to be a more cost effective solution as new heads are serious money.
Good luck and let us know how you get on.     
2004 2.5 174
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