Question about 1992 Dodge Dakota

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Fuel gauge on 1993 Dodge Dakota V8

Fuel gauge began "wobbling" erratically. Put in a new fuel sending unit. The gauge showed full when filling tank but would stop reading when showing about half full. Now it is stuck at 1/4 tank. Can the guage be replaced alone or do I need a whole instrument panel assembly.

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  • Anonymous Mar 29, 2014

    fuel gauge does not read propaliy

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Definitely the gauge can be changed, provided the float in the fuel tank is OK, i.e. no leaks. This float connects to a potentiometer which records the current flowing thru it and displays it in the gauge. So before replacing the gauge measure the current and match that against the quantity of fuel in the tank...............sodeep

Posted on Jun 25, 2009

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Posted on Jan 02, 2017

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1 Answer

Why would Fuel gauge fluctuate erratically then shake at blinding speed?


Bad sending unit, bad ground, bad gauge, I have seen sending unit go bad they will work part way.

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Does the 1993 dodge Dakota have an anti slosh module for the fuel gauge


The fuel sending unit inside the tank just has an arm attached to a float which raises/lowers depending on fuel level. The tank itself will have internal dividers that help prevent sloshing of the fuel. There is no module to control sloshing

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Check for a frayed wire touching metal and grounding out. The gauge works on resistance and it registering full indicates a short to ground. Either that or your gauge itself is bad.

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1993 dodge dakota gas gage stuck at full not working can I do it my self?


Too old, to be dropping fuel tank,
to install a new sending unit

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My gas gauge hasnt been working for a long time and im tired of keeping up with the mileage everytime i fill up. so now i want to fix it, what is the most common reason it stops working? is it the float or...


FUEL SENDING UNIT IN THE FUEL TANK FAULTY.THE FLOAT ARM ATTACH TO SENDING UNIT.THE FUEL SENDING IS A RHEOSTAT WITH ELECTRICAL CURRENT FLOWING TO IT.YOU HAVE A COIL OF RESISTANCE WIRE IN RHEOSTAT.WHEN FLOAT+ ARM RISE WHEN PUMPING MORE FUEL IN TANK THIS CAUSE MORE CURRENT FLOW THROUGH COIL FROM RHEOSTAT TO FUEL GAUGE WHICH CAUSE FUEL GAUGE MOVE TO FULL MARK.WHEN FUEL LEVEL DROP THE FLOAT + ARM DROP CAUSE LOW CURRENT THROUGH RHEOSTAT COIL WIRE IN WHICH CAUSE FUEL GAUGE NEEDLE TO DROP SHOWING LOW FUEL LEVEL IN THE FUEL TANK.

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I have a 2004 pontiac montana. for about two years the fuel guage would fold over and read 125 degrees when the tank is full. it woulld stay there until tank was empty and the needle would drop to empty,...


It could be a bad fuel gauge in the dash unit, but....
Usually it's "The bad".
The fuel level sending wipe arm and windings on the fuel sender wear and send erratic readings.The only cure is a replacement fuel gauge sender.
The check engine light should not be related to the erratic fuel readings.
"The good".
If you have over 200,000kms or 120,000 miles on your van you need a new fuel pump anyway,so have a complete assembly put in which will have a new fuel sender on it.

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1 Answer

Fuel gauge not working properly


The fuel sending unit is bad,it is in the tank,you may have to buy a fuel pump assy,to receive the sending unit ,if it is not available by itself.

Jan 30, 2010 | 1994 Dodge Dakota Club Cab

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Why doesnt my gas gauge work after installing new fuel pump?


check to make sure the wires are all connected at the sending unit,check to make sure you have a good ground.

Apr 09, 2009 | 1996 Dodge Dakota

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Fuel gauge not working all the time.


This is a normal concern.
The instrument cluster uses 4 different operating modes to calculate the fuel level:
Anti-slosh (default mode)
Key OFF fueling
Key ON fueling
Recovery
After a fuel fill up, the time for the fuel gauge to move from empty (E) to full (F) ranges from 2 seconds to 55 minutes depending on which operating mode the fuel gauge is in.
The default fuel gauge mode is called the anti-slosh mode. To prevent fuel gauge changes from fuel slosh (gauge instability due to changes in fuel sender readings caused by fuel moving around in the tank), the fuel gauge takes approximately 55 minutes to go from empty (E) to full (F).
The key OFF fueling mode (2 seconds to read empty [E] to full [F]) requires 3 conditions be met:
The key must be in the OFF position throughout the entire refueling of the vehicle.
At least 15% of the vehicle's fuel capacity must be added to the fuel tank.
The instrument cluster must receive a valid key ON fuel sender reading within 1 second of the key being put into the RUN position. The key ON sample readings are considered valid if the fuel sender reading is between 15 ohms ± 2 ohms and 160 ohms ± 4 ohms.
If these conditions are not met, the fuel gauge stays in the anti-slosh mode, which results in a slow to read full (F) event.
The key ON fueling mode (approximately 90 seconds to read empty [E] to full [F]) requires 3 conditions be met:
The transmission is in PARK (P).
The key is in the RUN position.
At least 15% of the vehicle's fuel capacity must be added to the fuel tank.
In key ON fueling mode, a 30-second timer activates after the transmission is put into the PARK (P) position (automatic transmissions). When the 30-second time has elapsed and at least 15% of the vehicle's fuel capacity has been added, the fuel gauge response time is 90 seconds to read from empty (E) to full (F). When the transmission is shifted out of PARK (P), the fuel gauge strategy reverts to the anti-slosh mode. The key on refueling mode prevents slow to read full events from happening if the customer refuels the vehicle with the key in the RUN position.
Recovery mode is incorporated into the instrument cluster strategy to recover from a missing fuel level input during a refueling event. Missing fuel level inputs result from intermittent opens in the fuel sender or its circuits. Recovery mode (empty [E] to full [F] approximately 20 minutes) is initiated when the following 2 conditions are met:
The instrument cluster is in the anti-slosh (default) mode.
The actual fuel level in the tank is greater than what is being displayed by the fuel gauge

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