Question about 1992 Chevrolet Lumina

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Fuel pump problems

My fuel pump is wired from my gas tank to my alternator how do i fix it the right way

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Three wires are coming from the oil sending unit. One will be cut away from it and connects to the fuel pump lead wire

Posted on Aug 01, 2010

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New fuel pump will pump air out but not gas?


Is it hooked up right ! Have seen wires reversed causing same problem !

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Changing the fuel pump


You need to drop the fuel tank unplug the fuel lines and wiring harness hope it's not too full of gas ..Did u know the number 1 cause of fuel pump failure is running your car or truck low on fuel all the time here's why fuel pumps are cooled by the gasoline in the tank have you ever spilled gas on your hand it's cold isn't it this is how the pump is cooled so if a car is constantly less than 1/4 tank the pump is not cooling therefore it's getting hot and overtime blam it will fail or fail slowly common problems like hard starting wich now leads to over cranking the starter and then that fails or of course your batt and possibly your alternator so rule of thumb keep atleast 1/2 tank Wala problem solved fuel pump is submersed cool and happy and so is your wallet regards Chris

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Can't siphon gas out of my 2005 hyundai accent


Almost impossible to siphon gas from todays' cars. Only way I know to do it, is to take off the filler hose from the tank. Then you could get a siphon hose into the tank.
An alternative is to pull the fuel line apart at the fuel filter, and use a jumper wire in place of the fuel pump relay. When done right, the pump will turn on and a stream of gas will come out the line at the filter. The pump relay is under the hood in the power distribution box. As you are unfamiliar with cars, you will need someone to jumper the correct terminals where the relay plugs into. If you get the wrong terminal, you could fry the engine computer. What needs to be jumped is the power feed for the fuel pump on one terminal to the terminal which has the wire going to the fuel pump in the tank. The relay has either 4 or 5 terminals depending on design. An experienced person can figure out the relay terminals to bridge or jump, based on the schematic that is on the side of the relay.

Feb 16, 2014 | Cars & Trucks

1 Answer

Fuel pump testing


Yes the gray wire goes from the relay to the pump, and the black wire grounds the pump.
I should tell you running the tank dry kills the pump. The pump uses liquid gasoline to cool and lube the pump. Running low on gas makes the pump work harder and hotter. Never run an electric pump below 1/4 tank of gas.
While you have the pump out you should fix the gauge too if you can.

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My 1989 buick park avenue keeps dying. a friend ran a test on it and it said the fuel pump was the problem, but the fuel pump fuse keeps bowing too... Would this be a short somewhere or the fuel pump...


My first thought is that you have wires shorting out somewhere, probably right above the gas tank. Either way, you're going to have to pull the gas tank off to find it. Usually, when a fuel pump dies, it just doesn't work, and won't normally blow a fuse. Pull the tank down, inspect the wiring, and change the fuel pump if the wires check out okay.

Aug 08, 2011 | Buick Park Avenue Cars & Trucks

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I have a 1996 chevy cavalier LS 2.4 liter. a few years ago someone poured sugar in the gas tank but the car still ran ok. about a year after that the fuel pump went out. I removed the gas tank and had...


was the fuel filter changed. and you should also check plugs and wires.for a missfire problem. if you dont get proper spark to plugs, it will misfire and be sluggish. have a good day !!

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The fuel guage on my 2004 Chrysler Pacifica jumps around


This is a simple service fix. It's a glitch in the computer system. Take it to the dealer and there is some sort of code they can enter to "update" the car's computer.
Mine does it occasionaly, it annoying, but not harmful.
I've heard of some that will act up for a while, then stop, while others, have acted up and them the fuel gauge stays on empty.
Talk to the dealer.

May 05, 2010 | 2004 Chrysler Pacifica

1 Answer

Wont start unless jumped we have replaced battery fuel pump and alternator also fuel pump relay switch


throttle body air intake mix is cracked i hope i said this right
right now my mind is waken up

this will be connected to the air filter and assembly take the whole assembly out and try and start vehicle
if vehicle runs you have a crack in throttle body air intake housing this will need to be replaced

cloged fuel filters there is usually 3 one in the engine compartment one on chassis and one in the gas tank called the sending unit this has a filter on it
the gas tank filter only needs to be replaced every 100 thousand miles

timing might be off
sparks not connected all the way or improperly wired
computer took a surge and now wont run replacement of computer is needed
vacume leak at master cylinder
capasitor ignition coil bad <<< spell check
alternators these days are mostly being remanufactured the only true brand new alternators are the ones that come from dealer
batterys are reman. too sometimes they have a dead cell in them
at one point in my life i had to go back 4 different times with alternator and battery for the same problem
this is a win loose win kind of senerio

from the sound of the vehicle only runs off a jump the alternator and or battery is bad

i hope this helped you in discovery of vehicle problems

May 24, 2008 | 1998 Ford Windstar

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