Question about 1997 Dodge Dakota

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Gas gauge quits between 3/4 and 1/4

Above 3/4 works but will drop to o and get gas image appears and warning goes off.

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  • dougmtn Mar 05, 2009

    I dont know yet I just bought it tonite and he said it donesnt work between 1/4 and 3/4 , and when I hit 3/4 it went to 0 and when i went up the hill it went back to 3/4 and was ok, when it goes to 0 the little gas pump light comes on, Its a real nice truck with 94000 miles and clean as new.

  • dougmtn Mar 06, 2009

    actually , now that its less than 3/4 what it does is registers actual amount of fuel but it drops straight to 0 and warning light and gong go off and then it jumps right back up to leval, and will do this off and on intermittingly.

  • Rob Leers May 11, 2010

    does it slowly climb when filling or go s?traight to 3/4

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  • Dodge Master
  • 6,674 Answers

First thing I'd try is getting at the connection at tank & clean and check all connections. It may be sending unit, but lets try this first. (cheaper & easier.)

Posted on Mar 05, 2009

  • Mike Butler
    Mike Butler Mar 06, 2009

    Make sure the ground is good.

  • Mike Butler
    Mike Butler Mar 06, 2009

    Again, cleaning & checking all connections, at tank, especially ground may find the cause.

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I have a 1992 Mercury Grand Marquis Ls with a fuel gauge that does not work (gauge may be reversed)??? help please.


The fuel level indicating system is a magnetic type system, which consists of the sending unit located in the fuel tank, an anti-slosh module located on the back of the instrument cluster, and a fuel gauge located in the instrument cluster. The sending unit changes resistance according to the level of fuel in the fuel tank, which varies the current flow through the gauge.The pointer position varies proportionately to the current flow. In this system, the sending unit resistance is low (22 ohms) when the fuel level is low and high( 145 ohms) when the fuel level is high. The pointer of the magnetic gauge remains in position when the ignition is turned to the Off position. On some models, an anti-slosh module is used to dampen out fluctuating fuel signals from the sender. Some vehicles are equipped with a low fuel warning indicator. The anti-slosh module will also actuate the low fuel indicator when the fuel level in the tank reaches 1/16 to 1/8 full.


Do your other gauges/warning indicators work properly with the ignition on? If not, check for power at the fuse panel/fuses.

If they do then partially remove your cluster with connector still installed and check for voltage at cluster connector and gauge. Check continuity of cluster and gauge for ground.

Sometimes the anti-slosh module (if installed) goes bad in the Grand Marquis but not likely.

Sender troubleshooting:
  1. Perform test with resistors as follows:
    1. Disconnect wiring connector at sender unit, then connect resistor between gauge lead and a suitable ground.
    2. Turn ignition switch to On position.
    3. With 145 ohm resistor, the gauge pointer should contact the Full mark.
    4. With 22 ohm resistor, the gauge pointer should contact the Empty mark.
  1. Perform test with fuel sender of known quality as follows:
    1. Turn ignition to Off position.
    2. Disconnect wiring connector from sender and connect it to test sender.
    3. Move float rod away from fuel filter against Full stop position. Wait approximately 30 seconds, then turn ignition switch to On position. The gauge should read on or above the Full mark.
    4. Move float rod toward fuel filter against Empty stop position. Turn ignition switch to Off position. Wait approximately 30 seconds, then turn ignition switch to On position. The gauge should read on or below the Empty mark. If gauge works properly replace sender, which involves dropping fuel tank.

Mar 23, 2013 | 1992 Mercury Grand Marquis

1 Answer

Fuel gauge problem


Could be either one.
You could disconnect the harness at the tank and ground the gauge circuit to see if the gauge will go to full. If it does chances are the problem is the sending unit in the tank.

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I have a 1993 F150 4.9 2 wheel drive, my charging system as not working. I have replaced the alternator and the system will not charge .The voltage goes up and down and when it drops it pegs my gauges to...


You have two fuseable links - one for the main battery circuit and the other for the voltage regulator which includes the stator.
The third wire goes to the gauge or warning light which "turns on" the alternator once it is running.
Does the gauge or warning light work, and have you tested the output of the alternator on the engine ?

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2000 Ford Taurus. Would fill up with gas when close to empty or light come on. Then a couple weeks ago,gas gauge was on 1/4 tank then went a little lower and engine started bucking. Then light came on. ...


change the fuel filter for one, this is telling you that your pick up in the tank is getting clogged, I would drop my tank, and drain it, flush it, and check the pump at that time

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