Hi all, thank you for your help as always.
2006 XC70 almost 200K miles.
1) Oil breeding system is done (area under injection)
2) New timing belt, cam seals, and water-pump
3) No leak from the muffler
When going up a long hill with higher gear (engine under stress), I smell like exhaust of some sort. It's been this way for a long time, however it smell like burning plastic or something now (from a 6 hours (each) trip this weekend).
As I mentioned, it's been this way since we bought a car, so I haven't been concerned. But this plastic burning smell (very small) is new...
Would you give me any suggestions?
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