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Re: no power at fuel pump chev.S-10 looking for fuel pump...
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.
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Which fuel pump relay fuse are you looking for? The primary relay fuse or the secondary relay fuse?
The Primary fuse is fuse #13 (10 Amp) located in the junction block.
The secondary fuse is fuse "G" (40 Amp) in the underhood fuse and relay center.
BOTH of these fuses can be checked by checking for power at the relay. If the relay has power where it is supposed to have power, then the fuses are not blown - there would be no need in this case to actually locate the fuses.
check all ur fuses for continuity first, then u can also try to swap out ur fuel pump relay with another relay that looks jus like it, be sure to use a relay like for ur horn or ac relay something that wont affect necessary or direct engine circuits like for ex. an ecm fuse or bcm fuse. if fuses r good an swappin relays wont work, next is to trace bak from fuel pump ur wires an possibly keep back probing to see if u have a broken wire from relay box to pump . good luck hope this was helpful . in ur fusebox ur fuelpump fuse should b labeled or easily found in fuse box legend, most likely on bak of fusebox cover....
Gonna do my best to try to explain what I think you are looking for. I am going to assume that you are having fuel problems so I will give you 4 places to look for power supply problems to your fuel pump. 1. Your fuel pump cut off switch is located in the front passenger footwell by the kick panel access cover. 2. The fuel pump fuse is in your power distribution box located in the engine compartment. That fuse is in the # 10 position. If you are looking in the box towards the bottom there are 2 rows off fuses and in between those rows are 2 relays. I hope you understand. The # 10 position is in the 2nd row, you have 2 fuses then 2 relays and from the relays going left to right it will be the 5th one over from the relays. It's a 20 amp fuse. 3. The fuses for the fuel pump relay is in the # 18 position. That fuse is in the same row as the last one but is the first one after the realys going left to right. It is a 15 amp fuse. and finally number 4. The fuel pump relay itself will be the second relay going from the left in that same "row" that I have been telling you about. That's the # 301 position. I hope this helped and good luck.
fuse you are looking for is behind the plastic cover on the firewall on
the right side. It may be a little disguised in a fuse holder. It is
very near the battery junction box pins and fuse links. It's a 10 amp fuse and it supplies power to the relay for the fuel pump.
Got to figure why you have no power at that relay. Has to be an open wire or blown fuse to the fuel pump or something preventing it from getting power. Have to trace it back to where you find the problem. Check fuses first.
Underhood fuse block swap out relay #7 thats the ECM relay. Ground Circuits Using a DVOM, touch negative voltmeter lead to a good ground. Touch positive voltmeter lead to each ground terminal. With vehicle running, voltmeter should indicate less than one volt. If reading is greater than one volt, check for open, corrosion and loose connection on ground lead. See ECM GROUND LOCATION table for ECM ground location. Page 1 of 1 SYSTEM/COMPONENT TESTS - 2.6L EFI -1994 Isuzu Rodeo
The fuel pump is located in the fuel tank. On these GM cars, the fuel tank must be dropped in order to change the pump. It is alos recomended that the fuel filter be changed at the same time which is on the frame of the vehicle, left side. the pump at autozone runs about $75 and don't forget the strainer for about $10. The filter runs about$10 also.
The fuel pump relay is located under the hood in the "other" fuse box that has the more engine related fuses & relays in it. Look at the back side of the cover for the locations of these items. Sometimes you can temporarily swap 2 of the same relays to verify or /find and fix the faulty part.