98 S10 blazer runs and then dies

when the motor is cold it will run until it warms up and then dies, it will then crank and run for a few min then dies. I have changed the coil and the module but still dies. there is no codes... I unpluged the temp sender and it sets a code so I know the computer is reading. Does eneyone have info on this ? I realy need help ..thank for your time.

I changed the fuel pump and so for all is well $200.+.. thanks for the help.

I changed the fuel pump and so for all is well $200.+.. thanks for the help.

Glad to hear you got her running again.:grinyes:

It is a little rare that the engine would run for a while then die, and turn out to be a bad fuel pump. Usually a bad fuel pump will not start the engine at all or die on you without warning, but once they die, they're usually toast and won't start the engine again. :banghead:

Please be so kind as to tell us how you diagnosed the bad fuel pump and elaborate on your experience.

Thanks for posting back.

when the truck was running I pressed the valve on the fuel rail and the fuel barley came out, plus the pump was real loud. With the new pump when I pressed the valve on the fuel rail the fuel sprayed out and the new pump was real quite. I had no pressure tester. So for all is still well.

I've relaced a few airtex pumps that do this. I think the fuel pump motor gets hot and quits working. It cools down quikly because it's submerged in gasoline and will run again after just a few minutes. The pressure will test fine at first but if you test it right after it dies you'll find the pressure is too low.