Another update: Friend contacted me again today saying the engine is stumbling, a little at idle, sometimes normal driving. I can't replicate it, but am suspecting the ignition system. This is a stubborn vehicle, and now I'm debating on buying a DICE scanner for the volvo specific codes, or to see i...

UPDATE: So, everything checked out to still be in time as I'd set it. Replaced a plug and boot; all runs perfectly normal. Wasn't a bad coil, just a missing spring connector. Definitely smoother running now than when my friend brought it over. Side note: I don't envy anyone who's had to replace the ...

Hi all, I'm the FNG. I searched a few hundred entries prior to making this post, so as not to be redundant, but have some questions. Helping a friend with an '06 XC90 AWD 2.5T. Haven't really worked on these before; have had my head buried under mostly American and Japanese cars...bit of German. The...