1995 volvo 940 not starting

Sounds like a fuel pump issue. Any more details? Does it turn over? If you elevate the back, does it start sometimes?
It might be the fuel pump. When was the last time you had it replaced? They last between 70-120k miles (my experience), so depending on the last time it was replaced, it might be time for a new one. They are relatively cheap ($100-$130) if you do it yourself, but it may cost you anywhere from $300-$1000 to have it done.
There is an access panel under the trunk liner that gives you access to the pump and floater, so if anyone tries to tell you that you need to replace the whole tank for $1200 (this actually happened to me once), just say "Thanks" and go somewhere else.
Check for other options on the pump itself, when I asked Pep Boys, they gave me a $300 one, and I said I'd get back to them. Later I found that this Bosch that was only $130 fit was exactly what I needed.

Mine wouldnt start in the morn checked for spark yes checked for gas preasure comming from main fuel line ..... no fuel... ok checked tank for fuel pump noise ... no noise ..... //// took it apart, acces through floorboard in trunk replaced pump $ 129.00 car is good now. hint be patient its hard to get out you dont need to lower the fuel tank the fuel pump is held in place by a big plastic cap...remove it COUNTER CLOCKWISE give it a few waks all around to break it loose ... good luck