2000 Chevy 2500 starting issue

[csholtz]

My truck sat for three days and now it won't start. I changed plugs and the truck turns over. Then when I let off the key it kind of gulps like it wants to start. You can hear the fuel pump when I turn the key on. Any help would be appreciated.

[j cAT]

Originally Posted by csholtz

my truck sat for three days and now it won't start. I changed plugs and the truck turns over. Then when i let off the key it kind of gulps like it wants to start. You can hear the fuel pump when i turn the key on. Any help would be appreciated.

security light on

[cramer_77]

Just cause you can hear your fuel pump doesn't mean its pumping up to full pressure. double check your fuel pressure. im sure j cat knows what the specs should be.

[consultIII]

what engine? gas or diesel, spark plugs or glow plugs?