Let’s get to this Volvo 850 EGR Cleaning!
850 EGR (Exhaust Gas Recirculation) Cleaning w/ Pictures.
The big issue was smoke coming up through the oil dipstick tube despite a PCV replacement a couple of years ago by the previous owner. He didn’t know what an EGR was so I suspected it was totally clogged up. Below you’ll find pictures and an somewhat of an explanation of what I did and what you will need to do if you’re in the same predicament. Unfortunately my dipstick tube still smokes (not as much but still does) so I’ll have to tackle the PCV some day soon.
Volvo 850 EGR Cleaning
Following the instructions on this page, I should have been able to see and clean out the EGR manifold hole. I simply cannot find any such hole in the manifold of my car. I do, however, have two holes into the manifold (arrows in my picture) about 90 degrees (clockwise when facing the opening to the manifold) from the EGR hole shown in your picture. I cleaned them out well, though they were really just barely dirty. Should I be looking elsewhere for the EGR and the EGR manifold hole?
Thanks in advance… this forum is an enormous help”
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