Question about 1989 Jeep Wrangler

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89 wrangler fuel gauge reads full and when I remove the pump from tank and work float up and down the gauge will move up and down, is this a grounding problem or a pump replacement?

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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  • 30 Answers

SOURCE: 2002 honda crv fuel gauge moves really slow.

sticky or old float in your tank

Posted on Mar 15, 2009

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CMV9
  • 594 Answers

SOURCE: gas gauge reading empty even when tank is full

Usually if the gas gage does not work yes it is true it may be the sensor if it is electronicly controlled. the sncor will more than likley be in the tank. here is how to remove your gas tank.

  1. Before servicing the vehicle, refer to the precautions section.
  2. Relieve fuel system pressure.
  3. Drain the fuel tank.
  4. Remove or disconnect the following:
    • Negative battery cable
    • Fuel filler and vent hoses
    • Fuel tank skid plate
    • Fuel tank wiring connectors
    • Fuel supply and return lines
    • Fuel tank
    • Fuel pump assembly
      7924bg17.gif Fuel pump assembly mounting
To install:
  1. Install or connect the following:
    • Fuel pump assembly
    • Fuel tank. Tighten the bolts to 27 ft. lbs. (36 Nm).
    • Fuel supply and return lines
    • Fuel tank wiring connectors
    • Fuel tank skid plate
    • Fuel filler and vent hoses
    • Negative battery cable
  2. Start the engine and check for leaks.

Posted on Apr 16, 2009

  • 2 Answers

SOURCE: gas gauge reads empty but tank acts like it's full

I also have a 04 with a 1.8L. same problem. I took the fuel regulator off. It is a black box behind the rear tire under car. It only has 2 bolts to take off. After that there is a couple of vent hoses from the tank going to this box. Unplug them and 1 electrical connection. The electrical connection and one vent is connected to a T connection on the box that you can unplug by twisting on the T. Take that T off and look inside where you unplugged the hose on this T. There is a spring and a little plunger inside this tube. The plunger gets stuck. I took a little screw driver and some PB blaster and worked that plunger back and forth a couple dozen times and it unfroze. Put it back together gassed up just fine. I did not look but I was told regulator can be replaced for 200$. But a can of blaster is cheaper.

Posted on Jun 10, 2009

  • 16 Answers

SOURCE: My Fuel gauge moves from left to right.

Have you checked the ground straps to the frame? That's where I would start.

Posted on Jun 24, 2009

motor1258
  • 6674 Answers

SOURCE: I have a 1987 YJ Wrangler that the fuel gauge

Tel me if these wire colors are correct. white/with black, tan, & black on gauge. Tan wire, & black /with yellow wire at sending unit. ?

Posted on Jul 21, 2009

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I put fuel pump in my car now my fuel gauge to stuck on full how can I fix it without taken tank my out


The float for the fuel gauge is part of the fuel pump assembly - it was probably damaged or is stuck in a position where the float cannot move freely. If you had to remove your tank to replace the fuel pump, you will have to remove your tank to correct this problem.

Oct 14, 2016 | Cars & Trucks

2 Answers

When truck is in motion going down the road gauge is all over from empty to full when stoped it reads properly


Your gas tank has a float inside that is kart if tne. Fuel. Pump assembly that indicates the amount of fuel in the tank..it sends a message to the gauge...sounds like the float is sticking when the gas is sloshing around when moving..causing a false read being sent to the gauge. Most times the tank has to be removed to replace..good luck..

Mar 02, 2015 | Cars & Trucks

1 Answer

Just changed fuel pump on 2005 f250 4x4 and fuel gauge moves up tom 1/8 tank and reads low fuel on full tank, why is my fuel gauge not working correctly


The fuel sending unit rod was bent during the instalation giving you the false readings. This is the thin metal rod that attaches the float to the sender.

Sep 29, 2014 | 2005 Ford F 250 Super Duty

1 Answer

Fuel gauge is not reading properly 2006 Mercury Mountaineer


Fuel gauges are not meant to be precision instruments. You might want to fill up a 2 gallon can and drive the car until it runs out of fuel to see how low the gauge will go before it's really empty. Use the 2 gallons to get back to a filling station.
I once spent three working days trying to get a 1972 Chrysler to read full when it's full, half when it's half and quarter tank when the tank has a quarter amount of fuel. The customer did not want to accept anything else, but in the end all I did was to get close, not exact.
It is possible that the fuel float in the gas tank is "drowned", that is, the plastic float might have a slow leak and some fuel found its way inside. This will cause the float to submerge slightly and give you a low reading. To check this you will have to remove the float unit from the tank.
In any case, if you feel up the job (not easy) remove the float unit from the tank and manually move it up and down while checking the meter reading. You can bend the wire holding the float to correct misreadings.
Personally, I wouldn't bother, just be aware that when the reading is low, feel safe that you still have enough fuel to get to the next filling station.

Apr 04, 2014 | 2006 Mercury Mountaineer

1 Answer

Fuel gage stuck on full


Either there is a short in the fuel sender wiring or the sender in the tank is bad.The actual gauge is rarely bad.Good luck.


Else
The float affixed to your fuel pump in your gas tank is stuck.

It tells the dash you ALWAYS have a full tank.
You have to drop the tank, PB Blast/WD40 the float, get it to drop down.
Finally
Your unit in the tank is bad. Pull it out and move it up and down while someone looks at the gauge. If doesn't work, buy a new one. They are not that expensive.

Apr 25, 2012 | Cars & Trucks

2 Answers

The fuel gauge is'nt working.I tryed to ground it


When testing a fuel guage you should disconnect the wires to it,guage should read over full,ground the float wire,turn off key then turn back on should read empty.You have to cycle the key for guage to move.If still inop the wire is broken in the harness between the tank and the dash.Voltage on the float wire is low.When tested with a test light it will barely light the light and pulsate.This test indicates the wiring is good.

Apr 17, 2010 | 1991 Chevrolet C1500

2 Answers

I have a 2002 dakota w/extended cab. The fuel gauge works however when it reaches a 1/4 tank you can be pretty sure it's empty. If I fill with gas at the 1/4 mark I will be pumping about 18 + - gallons....


Sounds like the sending unit is off. Not sure on the newer Dakota but the older ones used a float on a side arm (sort of like a toilet tank float)....if you bent the float arm, you can correct the level of the float and the reading. I believe the newer trucks use a float that just goes up and down in a verticle chamber... there is always the possibility the float leaked and has some fuel in it making it heavier and sinking. You would need to drop the tank to look at the float.

Mar 31, 2009 | 2002 Dodge Dakota Club Cab

1 Answer

Fuel gauge doesnt work


The fuel gauge in the fuel tank is simply a float connected to a bar connected to the sensor. Take a look at that and see if that float is stuck in one place causing a false reading.

Jan 11, 2009 | 1989 Chevrolet K1500

2 Answers

Fuel gauge doesn't work


u may have bent the fuel level sending unit arm os did not seat the fuel pump in place properly

Dec 20, 2008 | 2002 Buick Rendezvous

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