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didnt specify year of vehicle most relays for tahoe is under hood and at side of dash on drivers side -- turn key to on and listen for hum of pump no hum try starting with starter fluid if starts test for power to connections ,pump and relay if power more than likely pump shot
Heres a few things to check that could cut power to the fuel pump. The fuel pump inertia shutoff sw
in the trunk on the left side, there is a reset button on the switch if you push the button down and
you hear/feel a click then the switch was tripped and you just reset it. The switch's job is to cut off
the fuel in case of an accident. Next, the fuel pump fuse located in the battery fuse block under the
hood on the right fender well, fuse #1 20amp fuse. Next, the fuel pump relay, the relay is located in
relay center on the left fender well. Hope this is helpful.
The fuel injectors receive their power from the Powertrain Control Module (PCM) Power Relay which is located in the Engine Compartment Fuse Box. This circuit is protected by Fuse "I" (20 Amp), also located in the Engine Compartment Fuse Box. If you blew a fuse, this would be the one.
The fuel pump, however, is a totally different circuit. (although it is controlled by the PCM which will not work if the fuse above is blown) The fuel pump gets its power from the fuel pump relay which is protected by Fuse "O" (20 Amp) in the Engine Compartment Relay Box.
The relay and fuse for the fuel pump are located in the engine compartment
near the battery.
Fuse #9 20A* Powers Fuel Pump Relay
The relay is marked "Fuel Pump Relay" use the box lid to ID the relay position
Fuel PUMP fuse and relay is located in the Engine compartment
Fused block . Driver side. under the hood.
The Fuel pump relay Is labeled F/Pump.
And the Fuel Pump Fuse is labeled ECMB ( 20 amp.)
The ground for the fuel pump is located At left rear Frame rail.
Some times the Fuel pump harnes connector burn with the old pump.
Check the connector....
OK.. I hope this help on your question.
Thank you for use fixya..
The fuel pump relay is located Under hood, driver side, upper firewall, mounted in
The fuse is located under the instrument panel to the left of the steering column.
The fuse block should be visible from underneath the steering column,
near the pedal bracket. If the panel is not visible, check for a
removable compartment door or trim panel which may be used on later
models to hide the block.
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.
Fuel Pump suse location #14 20Amp Relay box located on left side in engine compartment the location is marked on the fuse box, fuel pump relay is #1 on the same box if the relay has electrical power then go to the pump located inside the fuel tank.