98 volvo v70 xc awd gas and spark but no start

The car intermittently ran like crap.
Sometimes, hard to start.
Then was running decent came home turned
it off and hasn't started since.
There is fuel to the fuel rail and spark to the
plugs. I have not pulled either to inspect. I
have a pair of pliers and a wood saw for
tools (my limited tools and knowledge of
cars don't really coincide). Gonna run up and
buy a spark plug socket this afternoon.
My question is... Is there a "known" problem
for these or common issue that a first time
Volvo owner might not think of... Or just
maybe something I am overlooking?