I need to remove fuel pump from 2000 nissan fronti...

In the engine compartment fuse box there is a fuse.

https://www.google.com/search?q=2003+Nissan+Frontier+XE%2C+fuel+pump+relay+location

https://www.autogenius.info/nissan-frontier-1997-2004-fuse-box-diagram/

This says the relay is above the parking brake with diagram.

https://www.2carpros.com/questions/nissan-frontier-2005-nissan-frontier-fuel-pump-relay

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to check the feul pump. have some one in the back and turn the key to the start position and if you hear a buzzing noise the pump work. if you do not hear a buzzing from the gas tank. you need to chech relays

It is under the center of the dash behind the lower cover. (Directly in front of the center console)

the fuel pump for most vehicles is in the fuel tank.

pump is in the fuel tank and is part of the sending unit assembly(replaceable seperately). i was told this by a nissan dealer when my nissan was getting the sending unit recall done about a month ago. i asked them if since the sending unit was going to be new if it included a new pump, they said no, its replaceable seperately but it goes in the sending unit assembly.

check the fuel pump fuse. ( or could be a bad conection (?) )


c...

You don't hear it running when your turn the key on just before the crank position.

You have replaced the fuel filter and it was pretty much stopped up. (destroyed pump trying to pump through stopped up filter.)

Because it was going bad you couldn't drive fast because it wasn't pumping enough fuel.

Disconnect fuel line and see if fuel comes out when you turn the key on.

You will have to drop the fuel tank.

In the gas tank. In a plastic Case attached to the bottom. Pinch the case to open it.

You have not run a engine control module fault code test, this is key to finding the possible causes. Borrow or buy a OBD2 code reader and check the codes