Ned the fuse box description . fuel pump dont

Hi Dani there maybe a fuse if we new what vehicle you have!!
Check fuse box or boxes there should be a label on the reverse side of the fuse box covers. This will give you a description and location of the fuse. Good luck

Fuse N 20 amp , under hood fuse box . There is also a fuel pump relay ,which the PCM - engine computer turns on to supply power to the fuel pump . Plus in the circuit is a inertia fuel shut off swith , this is incase of a wreck .I would check to see if the inertia switch was tripped . Location
Inertia Fuel Shut-Off (IFS) Switch C322
On lower LH "A" pillar, under I/P
I would also watch this video on fuel pump electrical circuits !
Fuel Pump Electrical Circuits Description and Operation

https://citroenc3owners.com/citroen-c3-tips/c3-2002-to-2006-engine-bay-fuse-box-layout-diagram-t157.html

Fuel pump is No2 and is 15Amp

IF YOU TALKING ABOUT FUEL PUMP.CHECK FUEL PUMP FUSE AND RELAY IF FUEL PUMP NOT WORKING.FUEL PUMP FUSE RELAY BOX LOCATED UNDER THE HOOD .IF FUSE AND RELAY OKAY AND YOU DONT HEAR FUEL PUMP TURN ON WITH IGNITION SWITCH IN THE ON POSITION FOR 3 SECONDS, FUEL PUMP MORE LIKELY FAULTY.

I looked through a wiring diagram and there isn't a "fuse" for the fuel pump. There is a small "micro" relay located in the power distribution box located under the hood in the engine compartment. Below is a diagram of the layout of the fuses and relays. the one you might want to check is the relay located in the number 25 position. Just want to make sure if you are not getting power to the fuel pump, but did you check the fuel pump cut off switch. If not the location of that is in the rear cargo are. Also below is a picture of it and a description of how to reset it. I hope this helps and good luck.

these are located in the underhood fuse box
Position #16 20A* Fuel Pump Relay
position #30 fuel pump relay fuse.

There is no fuse specifically dedicated to the fuel pump on this year and model of Suburban. This Suburban is equipped with dual tanks and as such has two relay switches, primary and secondary, both of which are located at the main fuse box in the engine bay, that power up the respective fuel pumps.

The closest fuse (15A) controlling either of these relays also powers up the main control module (located beside and below the main fuse box). So, if one needs to disconnect the fuel pumps from functioning, then the only effective method is to disconnect the fuel pump relays.

Couple of things, when you turn the ignition key to the run position, you should here the fuel pump "hummmm" for roughly 2 to 5 seconds.
If you can not here the pump run, check the fuel pump fuse under the hood.
If that is OK, find the fuel pump relay in the same fuse box and swap it with another relay that looks just like it and try to start.

Also, there is a fuel pump prime wire located up near the brake master cylinder or firewall area. It is a single gray wire with a RED connector on it. If you jumper battery voltage to that wire, you can run the pump.
Good luck, let me know.
Regards,

Hi. the inaccurate fuel gauge is easily fixed by replacing the fuel guage sending unit that is located in the fuel tank. this sending unit sends the appropriate signal the the gauge on the dash. all calculations are configured by the sending unit and if this device is malfunctioning, it will not send an accurate reading to the fuel gauge. simply replacing this device will fix the fuel guage issue you are having at this time.

Concerning the Amp drain after two days. this is caused by some sort of energy drain that can be in a faulty vacuum pump that isn't shutting off or, some sort of defect in the ECM. you could also have a faulty fuel pump relay that isn't shutting of and this will slowly drain energy from the battery within a two day period as well.

You can narrow down the battery drain by using a volt meter(needle) or multimeter. open the fuse box located on the drivers side below the dash. pull the fuse box door and expose the entire fuse box. you will need to pull each individual fuse independently to test if the actual slot is being used with the ignition switch in the off position.

Use the fuse slots contact prongs for testing the current level if any. with the ignition switch off, test all slots for live current feed. each slot that is dead is not affected and you may reinsert the respective fuse but, if you run across a live slot that is receiving a current while the ignition switch is in the off position, this specific slot will be the affected device that is draining the battery.

Test all fuse box slot accordingly. you will find the drain with this procedure.

Please rate and god bless:)

There is both a fuse and a relay for the fuel pumps electrical system. The image below of the Power Distribution Box is located in the engine compartment.

Fuse/Relay Location: 5
Fuse Amp Rating: 20 Amp Mini Fuse
Power Distribution Box Description: Fuel pump

Fuse/Relay Location: 203
Fuse Amp Rating: 1/2 ISO
Power Distribution Box Description: Fuel pump relay