Fuel pump issues any help

[Tostitoz]

I have a 08 Silverado ext cab 5.3L flex fuel truck. Trucks getting warm and shutting the fuel pump off. I’ve replaced pump, fuse, relay, ignition module and ecm/pcm still shutting the pump off anyone experiencing this?

[CamGTP]

The engine is getting warm and turning the pump off??

 

Or something is getting warm and shutting the pump off??

 

The only other thing that would control the pump is the Fuel Pump Control Module if that vehicle is equipped with one. That module is separate from the PCM.

[Tostitoz]

It will run completely fine till it gets warmed up about 210 then the pump will shut off and won’t even prime till it gets cooled down again. I have no idea if it has a fuel pump control module or not.