CHANGED FUEL PUMP ON 95 GMC JIMMY NOW WONT START

might be ecu fault are there any engine managment lights on dash is there defo fuel getting to engine can you here the pump running just incase its a duff pump if its totaly drained the fuel line it would take a bit to get the fuel to the engine any way

It is not receiving fuel you need to check your fuel pump.

Hi, Were the parts replaced due to a no start condition? Is there a trouble code stored in the PCM or an engine light on? How many miles are on the truck?

when the key is turnned on do you hear the fuel pump run? if not find the ground wire or wires coming off the fuel pump they are bolted to the frame with a wire brush and or sand paper clean the frame and the wire eyelet for the ground and try restarting it If I'm not mistaken the fuel pump is in the gas tank and you should replace the sending unit as well as the fuel pump... Then check to make sure your getting fuel to your engine... If you are then it has to be spark/fire...lack of that is...Good Luck

add fuel to your gas tank.

remove distributor

Are you getting a spark?

the fuel pressure if leaking could cause this the regulator is located under the intake plenum but you should smell gas .if you dont then most likely the pump is bad ,the pump will come on for 2 seconds when the key is on then go off it will not stay on with just the key on only when you crank it will it .so have your fuel pressure checked with a gauge.

When you hook the pressure test guage to shrader valve on fuel rail what it reads is what the pressure is from pump, around 60 p.s.i. all you need to do is hook up the guage and turn on key, you do not have to turn engine over, and if pump is good it will shoot up to 58 or 60 right now.

check fuel pump and make sure you have enough gas in it also