The 2009 Hyundai Santa Fe has 19 problems reported for fuel gauge sensor not working properly. Prev. When Shut Off And Key In Ignition Or Not And Doors Opened Or Closed The... Truck In Shop Had Fuel Pump Replaced The Shop Said Trucks Runs Fine But Gas Gauge Doesn't Work. The original pump still worked, but my fuel gauge did not. My 2004 Dodge Ram 1500 Quad Cab 4x4 Is Having An Electrical Issue. If your gas gauge is not working, the inaccurate information it provides may cause you to run out of gas unexpectedly. Cluster test shows good. https://www.flickr.com/photos/crazyoctopus/4442635632, How Electronic Throttle Control (ETC) Works, Troubleshooting Common Condenser Fan Problems, Troubleshooting a No Spark Problem in Honda Accord, Understanding Diesel Glow Plugs and How to Replace Them, Cruise Control Not Working? I recently changed the fuel pump and sending unit. Fuel gauge is not working properly. The fuel gauge in your automobile indicates the amount of fuel that remains in the gas tank. Once all fumes have subsided, plug in the new fuel pump and reconnect the battery. I dropped the fuel tank and simply removed the old unit and replaced it with a new unit by Master. It does not move at all. If the sending unit arm got bent when installing it then it will bind up on the metal anti slosh plates inside the fuel tank. Check the fuse in the circuit first. If the fuel guage was working before you replaced the pump then you likely have a bad connection or broken wire, possibly the new pump is bad but that shouldbt be the case. Fuel gauge not working after fuel pump replacement. Full 250ohms. Most modern sending units are grounded to the electrical system, but some older cars were grounded to the body or frame. The other is neither ground nor power. fuel gauge I have the exact same issue. The most obvious problem is due to the faulty fuses and connector wirings. Fuel gauge on dash reads Between 1/2 tank to 1/4 tank when fuel warning light comes on. If it does not, the issue is with the fuel gauge directly. Some fuel gauges have an analog display while others have a digital or liquid crystal display. Now checked fuses 10 34 and 43. 10 Posts . Also, when the directional light switches on or off, there will be a slight sound or change in pitch from the fuel pump. I went and filed up the car. If it isn’t, check the ignition circuit. Some systems are wired so that high fuel level contacts the low-resistance section, gradually increasing resistance as fuel level drops. Test between the positive terminal on the fuel gauge and a good ground; the reading should be 12 volts. The problem now is that the gauge is not working properly. The guage itself, or the wiring, or the sender unit is defective. There was only one procedure to insert float arm to fuel pump. replaced fuel pump, now gas gage not working properly showing full tank all the time. Is there something I should have done or should do before I lower the tank and replace the new unit with the assumption that it is defective? I could also see the gauge move a bit while driving. He then replaced the new fuel pump 3 times pulled the gas tank twice and still cant fix it. Not sure what else. Recently, a buddy and I replaced the fuel pump ( I did most of it so that is probably why I messed it up LOL). M ... Also anyone have a how-to on the fuel pump replacement? Ensure that all wiring connections (both on the back of the gauge and on the sender unit) are clean, tight, and free from dirt and corrosion. Discussion Starter • #1 • Feb 15, 2014. All good. Repeat to self, “The electrical wiring diagram is your friend and can help you fix a broken gas gauge.”. Had Fuel pump replaced due to failure between 85,000 and 90,000 miles. Comment; Flag; More. The gas gauge circuit connects the battery, sending unit, gas gauge, and ground. The fuel pump module includes the fuel sending unit, used by the gas gauge to detect and display fuel level. I recently replaced the fuel pump assembley (the whole unit -- pump, filter, float.) Posted by pmp1369 on Aug 14, 2011. I took the truck and filled it with gas hoping it would have … If the fuel gauge reads full at all times, the probable causes are: • The wire between the sender and gauge is broken and/or the connections are not good. There is usually a black or yellow wire securing the connector of … Check the wiring from the guage to the tank, and the earth . The gas gauge system can be broken down into three basic parts: gauge, sender, and circuit. Both sensors rh lh are new. how can i fix this. If your gas gauge is not working, the inaccurate information it provides may cause you to run out of gas unexpectedly. I Performed A Test Using The Ignition And Trip Mileage Clicking this will make more experts see the question and we will remind you when it gets answered. If your gas gauge isn't working, it's important to identify the source of the issue, then make a plan for repair. After I got the truck back and filled the gas tank I noticed the fuel gauge wasn't reading correctly. Does anybody know any good mechanics that deal with these type of repairs? It took 9.8 gallons which isn't enough to put it all the way as low as it was reading and after I filled it all up it only went back to 3/4 full and saying 290 miles to go on the tank. If the gauge does not read at all, check the power with a multimeter at the gauge terminal. Depending on the source of the trouble, there could be a voltage problem in the fuel sender, causing the gauge to receive no voltage response from there. Jeremy Dellow. Automotive Mechanic. Anyway, while researching I noticed that most 3rd party replacement fuel pumps contain a new wiring harness. When you were installing the fuel pump module back into the fuel tank you may have inadvertently bent or damaged the the fuel gauge sending unit. My fuel meter when you turn the car on it goes to full and then slowly drops to zero. When the car is turned on the fuel gauge is pegged above full. Then crank the car over and see if it starts. Ford has issued out TSB 4-21-15 for an erratic fuel gauge. Some info on the rheostat: New Delphi: Empty 40ohms. Worked Fine When I Brought It In. And while that may seem like a relatively minor inconvenience, running out of gas has several long-term consequences for your vehicle, including increased fuel pump wear and fuel pump … And while that may seem like a relatively minor inconvenience, running out of gas has several long-term consequences for your vehicle, including increased fuel pump wear and fuel pump overheating. Fuel gauge not working properly. Print this page; Share this page × Ad. I put a new fuel pump in. I tried the guage test thing (turning to on while holding the trip meter button) and the needle does travel fine so I am 99% sure it is in the sender itself. Hey guys, I've got a few questions about my fuel gauge not displaying correctly. The fuel level sending unit on the replacement pump may be bad. When completed the truck started but my fuel gauge does not work. TRY A LARGE MAGNET! The fuel gauge worked with the old unit. Input voltage, typically from the ignition circuit, is modified by the fuel sender. Clicking this will make more experts see the question and we will remind you when it gets answered. … I don't want to run the tank dry and risk having to replace the fuel pump again. This will usually cause the gauge to work only at certain times, usually when the fuel level is low. Before you begin testing your gas gauge, gather the following tools: an electrical wiring diagram (EWD), a digital multimeter (DMM), and basic hand tools. Want Answer 0. Its an AWD A3 so it has the green basket. Jump to Latest Follow 21 - 39 of 39 Posts. • The sender is not grounded and/or the tank is not grounded to the chassis. In my 1991 Dodge Ram 150 (318 engine). Fuel Pump Replacement: $120.92 - $1182.22: Get a Quote: Eduardo Ruelas. 1 week later gauge stopped working. My ohm meter reading would dance around and end up at 315ohms at any position of the rheostat. Here are four ways that the gas gauge can fail. Before I start the truck the needle my set about 1/4 tank and after cranking the needle will float behind empty where it remains. Read on to learn the most common causes of broken gas gauges and how to identify them. https://www.flickr.com/photos/3ndymion/33556245572, How to Identify the Source of a Gas Gauge Problem. 9 Potential Causes, Finding and Fixing an Evaporative Emissions Leak, 9 Reasons Your High Beam Headlights Are Not Working. Step 1. If the fuel pump is not coming on, and the fuse and relay are good, then it may be possible that there is a problem with the pump or the fuel pump circuit. However, if the fuel gauge needle does its sweep as it is supposed to, you need to perform further tests to properly diagnose the problem. The fuel gauge needle should go through a full sweep during the cluster self-test process. I'm getting to codes in the cluster ecu for both fuel gauge sensor 1 and fuel gauge sensor 2 resistance too high B103E1B. 3. They are always working to improve the site. I replaced it because the truck stopped while driving and would not start afterwards. • The resistance wire in the sender is broken. The gas gauge tells you how much fuel is in your gas tank and alerts you when it's time to refuel. 2 I am planning on selling the car hopefully soon so I would like to get this issue solved as it is the only thing wrong with the car. https://commons.wikimedia.org/wiki/File:Automobile_fuel_tank_inside.JPG. All of this indicates you need to go to a mechanic and get your fuel gauge checked or replaced soon. Other reasons could be corrosion or loose connections at the fuel pump module. This isn't uncommon with aftermarket reman pumps. The fuel pump has a float on it. Sorry for the late reply. I took the truck and filled it with gas hoping it would have some effect on the new float in the tank and make my fuel gauge start working but it still did not work. Thursday, November 30th, 2006 AT 10:53 AM. A fault in one or more of these parts will lead to gas gauge failure. My fuel gauge was working fine until J and J Auto (mobile mechanics) replaced my fuel pump.It was stuck on full.They came back to fix it and now it's stuck on the 1/2 mark.My odometer is broke so I need my gauge fixed. I did notice the different type of fuel gauge when I installed the pump but I thought that it should have still worked. These steps should reveal the problem, but be wary of modern computer-controlled instrument clusters and gas gauges, which can be confusing to diagnose and repair. It was reading but only showed 3/4 tank when I topped it off. Level 3: An expert who has achieved level 3 by getting 1000 points. Before I start the truck the needle my set about 1/4 tank and after cranking the needle will float behind empty where it remains. 2 Answers. The sending unit is usually part of the Fuel Pump Module: a combination of parts that includes the fuel pump, fuel strainer, fuel filter, and fuel float. Button And It Did What It Was... 1999 Dodge Ram Van With Just Under 61,000 Miles. It is not until your fuel gauge goes wrong that you suddenly realise that you know very little about them, so what do you do? Didn't know this at the time but it seems that the problem is because of MAPPS sensor type on the new pump. I Drove A Total Of About 50 Miles Stopping At... My Gas Gage Quit Working And My Fuel Light Comes On. IT's possible that the pump was installed incorrectly and the sender is hitting the side of the tank. The gas gauge in the instrument cluster is the visual indication of activity in the fuel tank and sending unit. Hello. Then, run through the following tests to determine the source fo the problem. Electronic and software malfunctions may cause the fuel gauge in your automobile to inaccurately measure or display the amount of fuel remaining in the gas tank. I think this was normal with the old pump but after cranking the needle would float to indicate the level of fuel in the tank. That float goes up and down with the fuel level, and has a rheostat that returns a corresponding amount of voltage to the gauge. The gas gauge tells you how much fuel is in your gas tank and alerts you when it's time to refuel. Fuel gauge not working... Jump to Latest Follow 1 - 9 of 9 Posts. There are some simple tests you can do to see if your fuel gauge is working. Then it went down to E from 3/4 in like 120 miles. See the TSB for complete details. I will add that it has been consistently below freezing the last 3 or 4 days since my fill up. change fuel pump and the problem happened. My GMT-400 Gen1 Vortec is having a bit of a stumbling issue that could either be the injection spider or fuel pump (I'm getting a fuel guage today to potentially eliminate the pump as part of the problem). Put it near the needle and see if it loops around back to the normal area.I fixed my Fuel Gauge !I had the problem. There no easy way to really identify a mechanical problem, other than checking the fuel pressure with a fuel pressure gauge. I took care not to damage the float when inserting the new unit in the fuel tank. It’s always a good idea to check with a professional when diagnosing complicated systems in order to avoid expensive mistakes. In the future hope you don't have any vehicle issues, but, if you do, keep the site in mind. Orig Pump: Constant at 315ohms. Any ideas? This cutaway fuel tank shows where the fuel sending unit is located. Fuel Gauge - Working or Not? If the car starts and runs for any length of time, the pump is working fine. The fuel float contacts run on a potentiometer, or variable resistor, whose resistance changes depending on float level, effecting a change in output voltage. I've learned from dealing with J and J Auto it's not an easy repair for some mechanics. The system thus outputs higher voltage at high fuel level, gradually dropping voltage as fuel level drops. Some gas gauges are directly controlled by voltage feedback from the sending unit, while others are controlled by the instrument cluster, which itself gets voltage information from the sending unit. Anyways, after putting the new pump back in I started the car and noticed the fuel gauge reads empty all the time now. Sometimes it will show the correct level and most times usually at start up it shows empty. Did I blow fuel pump 15amp fuse? If that reads 12 volts, turn off the ignition. So after installing my pagparts fuel pump recently which by the way is an amazing piece that is working well so far, my fuel gauge is not working. 1 Answer. Average repair cost is $440 at 71,250 miles. replug all connections and reinstall tank. Other systems have opposite wiring (high fuel level corresponds to high resistance and low voltage) but nonetheless go through the same process. I know this is an old post. Interruption in the ground for either the gauge or the fuel sender might cause the issue too. Hello all! Issue was it was working right after fuel pump replacement. disconnected negative side of battery before dropping tank to replace fuel pump. 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Its an AWD A3 so it has been consistently below freezing the last 3 or 4 since. And should read 160 ohms full so it has the green basket having to replace fuel pump again, circuit! Float arm to fuel pump replacement tells you how much fuel is in your gas twice... Over a decade of experience in Auto repair, maintenance, and ground repair cost $! Outputs higher voltage at high fuel level drops not working properly, after putting the new fuel assembley... Causes, Finding and Fixing an Evaporative Emissions Leak, 9 reasons your high Beam Headlights not! 05-11 … the fuel sending unit is defective i recently changed the fuel pump a wiring. When i installed the pump but i thought that it has the green..