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My gas gauge work when it want but i would like to no if it get real low on gas will the gas lite come on

I have a brand new fuel pump gas needle work sometimes but will the loe fuel lite come on when it get low

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: fuel gauge moves back and forth from full to empty

you have a bad sending unit inside your tank.
the resistance of the potentiometer inside is broke on the half tank part.

you have to replace it.

tnx 4 using fixya.

drcool

Posted on Oct 05, 2008

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  • 1 Answer

SOURCE: temp gauge and gas gauge not working

I had the same problem with my 2001 Pontiac Montana and the intake manifold gasket. This is a major problem with these 3.4L engines, if you are in the states I'm pretty sure there is a class action law suite against GM for this. I had my manifold gasket replaced and it was about $1000 CAD. You need to get your vehicle looked at right away as this could cause major engine damage, coolant will leak into the engine and soon enough you will be replacing that too. Good Luck

Posted on Feb 01, 2009

emissionwiz
  • 76682 Answers

SOURCE: Fuel gauge broken on 2003 Audi A4

You have a fuel gauge sending unit problem, the gauge is not the problem, the sending unit is in the gas tank, u must remove the gas tank to replace it.

Posted on May 28, 2009

  • 1 Answer

SOURCE: speedometer, gas gauge, odometer, rpm gauge not working

My gas guage, speed odometer and tempiture does not work
The speed odometre is reading 9999999 what should i do

Posted on Oct 21, 2009

  • 1168 Answers

SOURCE: 2001 chevy silverado 4.8 gas gauge not working properly

Fairly common problem with GM vehicles. The sending unit in your tank has a small circuit board that an arm is attached to which moves up and down according to your fuel level. This circuit board and arm are not making good contact. Unfortunately the only good solution is to replace this part.

Posted on Oct 28, 2009

Testimonial: "thought probably that was it but better off replacing whole unit .i was for for gauge proplem thanks. "

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Do I need to take out and and then reinsert the fuel pump fuse to reset the fuel gauge


That won't affect the fuel gauge. Different circuits, entirely. Any issue with the fuel gauge is between the gauge on the dash, a little wiring to the gas tank, and the sender unit inside the tank. In most cases, the problem turns out to be the sending unit inside the tank.

To check the gauge itself for working, you can ground the fuel gauge wire at the gas tank connector, and watch for movement on the gauge, with the key in ON. You take the connector off at the gas tank, find the wire for the fuel level sender (or gauge), and touch it to a good ground- a metal piece on the car frame. If gauge is good, the needle will move either to full or to empty, but you can see the needle move to a new point, when you (temporarily, only temporarily) ground the fuel gauge wire. The key in the switch must be in on. If this causes the needle to move, then the dash gauge is good, and the problem is the sender unit in the tank. This unit has a variable resistor, not too expensive. The fun is getting to it.

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Sorry, if this is a silly question, but is a new Fuel Filter installed automatically/come with a new Fuel Pump? Or do you have to buy a new Fuel Filter and attach to the new Fuel Pump before installin


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Where is the anti slosh module in a 1988 mercury grand Marquis ?


Anti slosh module? I've never heard of that. If there is such a thing, it must be on the fuel level sending unit in the tank. It is usually the sending unit at fault when the gas gauge stops working.

Here's how to check if the problem is the sending unit or the gauge in the cluster: you will need a helper to watch the gas gauge needle. Pull the electrical connector apart at the tank, find the gas gauge wire. The power wire for the fuel pump is pink and black, and the ground for it is a black wire, so the fuel sender wire should be a different color. When you figure out which wire is for the gas gauge, turn the key to on, and take a jumper wire and ground the gas gauge wire to the frame. Have a helper watch the gas gauge needle when you ground the wire: the needle should move perceptibly. If it does, the gauge in the cluster is good, and the problem is with the sending unit in the tank. If grounding the wire does not make the needle jump, the problem may be the gauge in the cluster. Be sure that you have made a good contact with ground with the jumper wire.
There is a small match box size voltage regulator on the back of the cluster. This sends low voltage (about 5 volts) through the gas gauge and on to the wire going to the tank. When you ground this wire, it should cause the gauge needle to go either to full or to empty, but you should see the needle move. Remember, key on, then ground the wire. Any movement of the needle means the gas gauge is probably good, and the problem is the sending unit in the tank.

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1 Answer

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I am going to paste a list of potential causes for a p0460. There is a cure for a dirty reader card and Ford recommends CHEVRON TECHRON fuel system cleaner. Run tank low, put in cleaner, use best gas you can find,avoid your frequent brand.

02-06-2006 06:19 PM #2 TXFO user-offline.png Not Special Enough txfo.gif?dateline=1249691143 Join Date Jul 2002 Location New Braunfels, TX Posts 13,976 icon1.png Re: Fuel level sensor circuit malfunction (P0460)? P0460 - Fuel Level Sensor Circuit Malfunction The PCM monitors the fuel level input (FLI) circuit for electrical failure. The test fails when the signal moves outside the minimum or maximum allowable calibrated parameters for a specified fuel fill percentage in the fuel tank. Empty fuel tank
Fuel pump (FP) module stuck open
Incorrectly installed fuel gauge
Damaged instrument cluster
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Damaged PCM
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Fuel pump (FP) module stuck closed
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FLI circuit open
FLI circuit shorted to CASE GND or PWR GND
CSE GND shorted to VPWR
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