Hi everyone.
I bought a 1996 4wd blazer and it ran a little ruff but still got me around. Drove 48 miles to work and went to go home and it would only crank but never fired. Got a ride home and went back the next day figuring i would need a tow but the truck fired right up. drove it home and figured it was the filter so I changed that. Truck started fine and ran okay so I took it around the block and it cut out never to start again. I took the spider apart and cleaned the injectors but still nothing. Any help would be great.

 

Fuel pump, do a fuel pressure/leak down test first.
Testers can be found at most autoparts stores. Do a search on here for the specifics

 

Fuel pump is my first thought as well. Pressure test will tell for sure.