In April, I bought this 97 850 T-5 for $400. It wasn’t running, wasn’t building any compression. Sprayed some starter fluid in and it cranked (don’t ask me how, I was just as baffled). Determined it was a bad fuel pump. Got it home on tow truck, sprinted to the junkyard downtown right before they closed, and got an S70 fuel pump. Cost me 15 dollars and 10 minutes of my time. Anyway, got it running the same day. Cleaned out the PCV (removing the intake and all) and it’s running well for the past month! Even has AC now!
-your friendly volvo whisperer