Help time on 1993 k2500

[weirdbeard88]

I have a 93 k2500 with a 350 I have spark I have gas to injectors it turns over great and some times it will start and run for a sec or to then just turns over what is the problem? Help

 

[chevyguy97]

Check your grounds, 1 bad ground can cause a lot of issues. Especially on the battery lead connections. Pull them off, wire brush or wheel the connection point til its shiny bare metal, then put it back and get it tight. I've had a lot of ground issues in past that had me stumped and seemed like symptoms of a different issue. Let me know if this don't work.

 

[skylark]

Check your fuel pressure.

 

[evilunclegrimace]

Check you pressure like Skylark said,when was the last time the fuel filter was changed? Hook it up to a scan tool and find out what the live data is telling you.