2004 M45 fuel pump location

[chillindude]

hay guys im not sure where the fuel pump location is on my infiniti m45 2004. been looking for info everywhere but havent been able to find any

[kmiles]

The fuel pump for your car is in the fuel tank. I'm not sure if you can access it through the rear seat or if you need to drop the tank. I'm pretty sure the unit includes both the pump, filtering system and fuel level float are all in one. You didn't indicate what is wrong - have you checked your fuse?

[EdBwoy]

The pump/or pumps (can't remember if there are 2) are accessible from the trunk area. Remove the trunk trim and the gas tank is behind the seat, the pump at the top.
As kmiles suggested above, a little more diagnosis might save you some trouble. The factory service manual hosted on Nicoclub should guide you.

[chillindude]

my car wont turn over i had to replace the battery but now when i go to start it it cranks but wont turn over. a mechanic said it wasnt getting fuel but he barely looked at it. if its in the trunk does that mean i have to drop the tank

[EdBwoy]

No, you shouldn't have to. This age of Nissan RWDs had the tank strapped to the car at the front of the trunk, right behind the seat firewall, so to say. So if you remove the clips holding that trunk fabric, you should see the tank in the trunk.

To get more to your starting problem:
I am assuming your car was fine until you replaced the battery, correct?
1. Might seem silly to ask, but what is the CCA rating on this new battery? Make sure it's got enough juice.
2. Make sure you're not stomping on the gas pedal while trying to start it. Also, try quickly jabbing the gas pedal during this process, does it start?
3. Have you located your fuel pump fuse and is it ok?
4. Are there any codes active or pending with the check engine light?

[Double E]

I've pulled the fuel pump on this car before. As described, it sits upright between the back seat and the trunk area. Take EVERYTHING out of the trunk, and remove the liner. It all has to come out because you'll spill some fuel during pump removal.
A few bolts hold the assembly in. Be careful in removal as you don't want to alter/bend the position of the float assembly.

More common than a fuel pump failing however is that the cam and/or crank sensors are dead. They're a hellof a lot cheaper then the fuel pump to try and available anywhere that sells parts. Some suggest only OEM but I had success with the after-market for them.

[EdBwoy]

For future queries, it's somewhere in here: