GMC Repair: GMC Truck Fuel Pump Failure, fuel pressure gage, gmc truck

Question
I own a 2000 GMC CrewCab 4x4, with 5.7 engine. At the first of this year I started experiencing occasionally the engine would start and cut off. You could let it set for 10 minutes or so and it would start and run fine for a few days, then it would do the same thing.  I replaced the fuel pump with a new one OEM. The truck has ran fine for about 4 or 5 months. Now it's started doing the same thing again.   Now I'm thinking that the problem was not the fuel pump all along, but some other problem.  Any ideas that would help me eliminate this problem?
Thanks
Joseph

Answer
Hi
I would put a fuel pressure gage on it and MAKE sure it IS the pump.
If you are having multiple Fuel pump problems, I would first preform a Current draw test on the pump you have now.
If they are drawing too much current, they will fail at a higher rate.
USUALLY anything over 4-5amps is too much. If the pump is drawing more it is the pump.
IF the pressure is staying between 60-66psi the pump is operating as designed.
I would also, check the connector that plugs into the pump make sure all the terminals are good, not burned and good terminal tension.
I Hope this helps.
Pawl