Fuel gauge not reading correctly after fuel pump replacement

Fuel gauge not reading correctly after fuel pump replacement

Jun 13, 2007 · It is easier to inspect if the rear seat is removed. gauge shows either full or 3/4 full when started and changes while driving but never goes below 3/4 tank. Dec 4, 2023 · Here are some key steps to take: Check for Fuel Leaks: Regularly inspect the fuel tank and fuel lines for any signs of leakage. Inspect the Fuel Sending Unit: The fuel sending unit is responsible for measuring the fuel level in the tank. Fill it enough to drive it but not so much that you cannot fix it again. Turn key and start immediately like a new truck all day. com Dec 7, 2010 · According to info from other Rogue owners on the web, this is a common problem. Switch on the ignition. Oct 24, 2018 · After having both replace my gas gauge no longer reads correctly. Main fuel pump is on driver side and auxiliary fuel pump is on passenger side. And when you start the car, I can see the needle move but it just stays on empty. This is one reason why extreme care must be used when working near the sending units. 5 gallons. After the mechanic replaced the fuel pump he asked me if I remembered how much gas was in it. Fix Dec 15, 2020 · Fuel gauge not working after fuel pump replacement. for empty. Additionally, a dead fuse won’t result in inaccurate readings. The fuel level sending unit is attached to the fuel pump itself and the entire fuel pump will need to be replaced to repair this problem. 97 volts on the hot wire at the gauge and the ground wire is good. If this fix does not work, addi Jan 28, 2010 · 3 posts · Joined 2021. Mar 4, 2016 · Points. Apr 9, 2022 · The fuel pump didn't really seem like a very complicated device. Faulty Grounds: Poor or corroded grounds in the electrical system can lead to irregular gauge readings. Now if you have the same corrosion problem I did, you will need to remove the secondary sender unit from the tank. This may hurt a little but it's something you'll get used to. https://www. Mar 15, 2014 · An overview to reset a faulty fuel gauge in 2001, 2002 ML320, W163. Remove the entire fuel pump module from the tank. But I got it done. Again, the fuel pump may not be giving enough gasoline for the engine to run smoothly. A blown fuse can lead to a non-functional gauge. Nov 16, 2004 · Hello, I'm having an issue with the fuel gauge on my '99 Mustang GT. What a pain in the ass dropping the tank and getting the retention ring off and back on. Franky73. Turn on the car and push the "Trip/Odo" button to put the odometer into "ODO" mode. 10181 posts · Joined 2013. Dec 8, 2015 · Aaaaaaaaaahhhhhhh!!! - Melissa A. If they wear, a correct signal isn’t sent and the level reads as an unchanging full or empty. If the sending unit arm got bent when installing it then it will bind up on the metal anti slosh Jul 29, 2021 · 1) Failure of Sender. The fuel gauge is not working correctly. Check for any signs of corrosion or damage. Was in the shop for 2 days and cost $1,030 for parts, labor and gas to repair now in 2023 (no warranty coverage on it). Feb 16, 2024 · The car will read 1/2 tank when the DS tank is "full" and the gauge will read full then BOTH tanks are full. I just noticed that the fuel gauge doesn't go to to zero when I shut off my Step 1: Ascertain whether all the wiring connections on the sender unit and the gauge are tight, clean, and dirt-free, as well as corrosion-free. I told him it was 1/4. -the fuel gauge stays in full all the time even after i go for a long drive. Jan 4, 2018 · I started with the one without the fuel pump and it did not cure the problem. A blown fuse won’t permit the current to flow. Aug 3, 2015 · Charlie-III. 1L. If your problem is incorrect readings, you should look elsewhere. which obviously is inevitable for a new replacement pump. May 19, 2014 · So now a free fix turned into a $259 fix. 10 Common problems after changing fuel pump. #4 · Jan 11, 2006. After last fill up gauge read full. This can seem like a very odd electrical gremlin that will leave you scratching your head. MaxDoc. 9 gallons to fill. When the vehicle is in motion, the sending unit is in constant motion, constantly rubbing the variable resistor. OR, go ahead and fill the tank and set the trip odometer to zero, then observe the gauge for 325 miles or so Apr 26, 2024 · Reseting a Digital Fuel Gauge. Jan 8, 2016 · 1. If you ground this wire with the key on and it goes to full the fuel level sensor is bad, here is how Apr 10, 2012 · With the fuel tank somewhere between 1/2 to 3/4 level, activate the fuel pump with the key on and engine NOT running. I believe I have to replace the fuel pump sending unit. However, it may only be a minor difference like a clamp location or something. Follow the instructions in eSI. Earlier Dodge Chargers had a fuel level sending card that could be replaced in Reconnect the gauge wiring to the unit and ground the unit. In this case, the fuel gauge doesn’t read at all. Any suggestions or experiences are very welcome! The vehicle is a 2007 Charger SXT. Still showed full after 90 mi. May 12, 2018 · After a few try, let warm up, or go for 5 minute drive. A completely stopped fuel gauge is another challenge a car owner may face after changing a fuel pump. That only applies if your CVR is correct and working properly. At that point I called the dealership to see if they could reset it. amazon. The issue: Randomly the fuel gauge on the dash will go from full to empty and stay there. Mar 9, 2018 · FWIW, this sounds like the same experience I had with my Infiniti. Upon re-starting it would correct itself. However, the new fuel pump and sending unit did not completely resolved the original problem with the fuel gauge. Try plugging the original fuel sender unit in and moving the float from empty to full slowly while watching the fuel gauge. 5l. 63 posts · Joined 2006. all the way down. 2008 charger 3. It took me about 1 hour to get the seats out, 20 minutes to cut the hole, 2 hour round trip to get the pump, 30 minutes to get the ines off, 30 minutes to get the lock ring off, 20 minutes to put the new Jul 29, 2015 · Before replacing the fuel sending units, dump a bottle of fuel system cleaner (Chevron Techron or similar) into your fuel tank. The gauge, fortunately, read low and not high. The reading should show a rise or fall without dropouts. The wire color is dark blue, and it is at the wiring harness near the fuel tank. Next, test the wiring and electrical connections of the fuel gauge system. I'm guessing someone got lazy during the engine swap or something. Nov 17, 2013 · Gauge works, just does not registrar correct levels. Don't remember brand, looking for the papers now. Oct 12, 2015 · With the module, I had to do the harness update as well. I know it works because it was working before replacement. The 2006 Nissan Altima has 6 problems reported for fuel gauge not reading correctly. Feb 12, 2018 · 3176 posts · Joined 2010. This is often caused by bad wiring. If the fuse is good to go, there are two choices for the next step, checking either the fuel Feb 16, 2016 · The fuel level sending unit is part of the fuel pump, and you damaged the electrical sweep or bent the float arm. After 150mi. If it continues to read wrong then pull it out and physically bend the arm up towards the top of the tank. Here’s how you can test it: Mar 30, 2015 · First thing to do would be to disconnect the battery for a while, reset the computers. Jun 11, 2024 · KEN L. #6 · Feb 12, 2018. If the voltage drops, the fuel gauge sending unit May 1, 2024 · Prior to the replacement the fuel gauge read a quarter of a tank and wasn't giving us any issues that we know of. But the first time I got down to 1/8 full on the tank gauge. Float isn't floating (cracked, filled with fuel). On the 5-pin plug (harness side): short out pins 2 & 3. The four ways of how a fuel gauge can fail are: 1. The thing is the new panel read 50k miles and while original read the real miles (150k) Now everything works perfectly on the original panel but the Dec 27, 2019 · Fuel Pump assembly with sending unit Cheap brand https://www. Jan 25, 2024 · Another problem is rough idle or stalling. In that case, you would need to replace the entire cluster or consult a professional mechanic for further assistance. -when i pump gas it cuts off every couple cents. Both pumps are accessible by removing the rear seat. 2. #1 · Aug 14, 2017. Unfortunately the bed needs to be removed just to examine it. It is located in the center below the rear seat. Jan 11, 2015 · PAY IT FORWARD . If they are off, replace the fuel sender. :drive: Alpinweiß. Nov 30, 2023 · Another potential culprit for a gas gauge not working is wiring issues. Verify by hooking up an ohmmeter to it and making sure it reads: 8-12 ohms full and 70-73 ohms empty (pre-1989) Dec 14, 2018 · Disconnect the fuel pump connectors and fuel lines. Sep 29, 2019 · Your photo shows a non-original gauge so who knows what sender it is expected to use. still not too bad. Fuel gauge reads over full when turn the key to start when fuel tank is full, Not when fuel tank is half full… Oct 7, 2017 · Remove the fuel tank and the fuel sender / pump assembly. With the pump running you should see active fuel transfer happening by the left sensor decreasing and the right side increasing. Take a reading with the arm full up and fully down and compare to specs. #30 · Jul 14, 2021. Sorry this doesn't answer your question. It might also be the fuel gauge is not working properly, but the level sender would be my guess. Average repair cost is $440 at 71,250 miles. Press and release the button 3 times, holding it down for 4 to 5 seconds the third time. Over time, the wiring connections can become loose or damaged, leading to a loss of communication between the fuel level sensor and the gauge. 00 ,from a car with 50k miles. Location. If your fuel gauge is not working properly after changing the pump, you should see the pump again. Place the sender/pump module on a flat surface. I just replaced my fuel pump but it's like the float isnt sitting properly and I dont have anything to reference for accuracy. Remove the fuel gauge. , Madill, OK, US. Yes, the hoses had gauges on them, but not the cans. ive also tried cleaning the contact points where the float is to no luck, any help would be May 2, 2022 · Fuel Gauge Reading Errors. To my surprise, it only took 12. This way, whenever you turn the key ON, the gauge receives power and turns on the fuel gauge system. I believe the float on the sending unit may be damage or just old. he even provided me with a new panel and offered to install it to prove it was not the gas pump or something more serious. Checked out the MIL / CEL. 490 gallons and when I get in my car and Jul 23, 2013 · They changed the fuel pump module in 98 I believe. E46, E83, E90 (all with three pedals) 2). The contacts between the wiper and resistor are always rubbing together. It was discussed in the last week or so. I immediately thought to add a couple gallons of gas to the tank, and it started right up. Difficulty starting the vehicle. Over the next day and 1/2, I ran it down below 1/4 tank, so I pulled in and filled it up. The most common reason is that the fuel level sending unit has failed and is not accurately reading the fuel level. Nov 14, 2020 · Step 3. I am looking at 2006 Pilot service manual. This is the most common problem since there is a lot of motion inside the unit. Apr 13, 2016 · Each sender has a float, an arm, and a wiper, which sends a signal as a resistance reading (ohms) depending on how much fuel is in each side. The fuel pump may turn on and not work due to a wiring issue. Sending Unit Failure . So I'm sitting in the driver seat with Dec 1, 2022 · Engine Stalling. THe new fuel pump assembly now enables the gauge to read full accurately but the May 1, 2024 · At 220 miles it drops to zero and the empty fuel warning light comes on. DONATE any amount here https://www. The presence of voltage confirms that power is being supplied from the battery to all related components, including wiring harness and sending unit. If the gauge reads full in the full up position and empty in the full down position, then the sending unit is good. Here is a brief history. 1999 ZR2 Black Extended Cab. Part number is E3610M. To be fair, I had a weak battery and had to replace it. Test the Fuel Sending Unit. See full list on mechanicbase. The fuel pump may not function as expected because it may not be compatible with your vehicle or not be properly installed. 28. The gauge also fluctuates a little bit while driving as does the fuel range. Next, remove the three wires on the back of the old gauge. 4. If it's blown, replace with a new one. This means siphon jet pump is not working ight to transfer fuel from PS tank to DS tank. The fuel range will stay the same for a fuel miles or will drop about 10 miles and then go back Nov 29, 2023 · If the fuel gauge still does not function correctly after troubleshooting the fuel sending unit and electrical issues, it might be due to a failed instrument cluster. Engine stalling is another common issue to experience after recently changing your fuel pump and is primarily caused by an improperly installed or blocked fuel filter. Replace spider fuel injector and fuel pump 4 years ago, Runs great once it starts. Fuel Pump Replacement When a fuel pump goes out it can do so one of two ways either it can quit and stop working or it can fail intermittently causing the engine to stall or not start. I purchased a direct fit replacement. 0, 6. I find out now that this problem is common on the Santa Fe 2007 to 2009 model years. Midlands. Nissan should issue a recall not a TSB. as in nothing. Aug 14, 2017 · 5 posts · Joined 2017. Jun 14, 2023 · The gauge is the issue because it shows a low fuel light. The fuse is not to blame. Mar 29, 2007 · Anyway, when I picked it up, it read about 3/4 full. The most common reasons are the fuel pump was not installed correctly, or the wiring circuit and fuel pump relay has a problem. This component sends a signal to the gauge telling it how much fuel is in the tank. I'm thinking they replaced the fuel pump and not the sending unit which has been frozen somehow in the max position. Apr 4, 2022 · 3. $15 in gas and a 2 hour round trip later, I had my pump. But sometimes replacing it with a new one can lead to new problems. If you disconnect the connector to the fuel pump assembly (by the gas tank), turn the key ON, the gauge should swing to FULL. Oct 5, 2021 · Pull the fuse box cover and check the condition of the fuse for the gauges/instrument panel. Aug 28, 2015 · My gas gauge is not accurate after changing my fuel pump on a 2005 Dodge Ram 1500 4x4. You would have to lift the back seat or remove the trunk carpet. If it does not, then the problem is either the anti-slosh circuit board on the back of the cluster or the gauge itself. On the other hand, if your fuel gauge is showing a full reading, it means the sending unit is faulty and due for replacement. There is probably only a 50% chance this will solve your problem, but it is a really cheap first step. Stalling or sputtering. Please help me keep all my resources FREE for everyone to learn from and use. #2 · Aug 3, 2015. Once the battery was replaced, the fuel gauge needle stayed flat on empty even though I had filled the empty tank Oct 24, 2017 · I just bought a 1999 and the seller told me the gas gauge was not working. The gauge won’t work at all. 1roadgarage. The fuel filter is responsible for keeping debris and buildup out of the engine. You may think your vehicle will run smoothly after replacing the disturbing fuel pump. Changed Fuel Pump And It Ran For 2 Minutes May 29, 2015 · Similar Threads - Fuel gauge reading Forum Date; Fuel level gauge problem: 2009 - 2014 Ford F150 Truck Forum: Nov 3, 2019: Fuel pump issues: 2009 - 2014 Ford F150 Truck Forum: Jun 25, 2016: Temp Gauge: 2009 - 2014 Ford F150 Truck Forum: May 8, 2024 Aug 22, 2017 · The bottom line is my fuel gauge has not and is not reading correctly. Take Away The most common problems that occur after changing your fuel pump–engine stalls, rough starts, loud whining, and inconsistent fuel gauge readings, occur when there is a bad installation of the fuel pump or Nov 13, 2010 · slo89stang. 6 CYL. . Anyhow I fill the tank up with 13. It's all concealed in that yellow-ish looking container. Cause. Addressing these issues can lead to more precise readings. Sep 25, 2008 · Here is another one of my mini write-ups to fix that pesky fuel gauge sender problem that has plagued many of us. The sending unit seems to be working I get 56 Ohms with a half of tank and 115 with a full tank. Odd. All fuel pump problems have a solution 1991 CADILLAC DEVILLE. Turn the car off, then press and hold the "Trip/Odo" button and turn the car back on. I'd fill it up and it would only take maybe 10 gallons. I have a 2010 dodge charger sxt 3. -Bad grounds. Disconnect the wiring connected to the sending unit of the fuel gauge and then look at the fuel gauge. After replacing the fuel pump, there is a chance that your fuel pump readings might go haywire. The gauge may appear to be at three quarters, and then only a few minutes later will change to Oct 13, 2022 · When the center of the needle is at the center of each of the fuel level marks, and starting at the F mark, you have 92% of 19. (which there is) and that I can access the fuel pump and swap out the sending unit from there. Like. One needs to gain the access to the fuel tank from the top (a pump removal tool is necessary). 3). One of the first symptoms of a problem with the fuel gauge sender is a fuel gauge that behaves erratically. 1 & 6. Cleaning the fuel-level sending unit attached to the fuel pump finally resolved the issue. Apr 1, 2011 · Feed the arm in first then with it pointing out towards the driver side feed the sending unit in. I have had this problem for over a year. and a Q-Tip and burnished the wiper Aug 14, 2021 · 14 posts · Joined 2021. Dec 12, 2017 · Gauge used to work fine before fuel pump replacement. Fuel guage must show E. These are usually a yellow or purple wire (depending on what brand engine you have on your boat). Gauge does peg out at the top of the gauge when full. Nov 28, 2018 · Check the wiring harness connector (fuel pump to Jeep) for corrosion/degradation, you may have to de-pin for a good look. A faulty fuel gauge sender may cause the gauge to suddenly change positions, or give an inaccurate reading. Each quarter fuel mark as you go down will indicate 21% lower that the previous mark. #7 · May 27, 2008. Mar 4, 2016. One wire goes to the center pin on the tank sending unit, one goes to ground, and the third connects to a 12-volt source, normally the ignition switch. For instance, if you park on a hill, then it’s normal for the fuel reading to change. It's been working fine until I just went to the gas station, with the needle of the gauge in line with the red line for E and my low fuel light on. May 26, 2008 · J. 1999 Wrangler Chili Pepper Red. jaycee. Then the fuel level sensor & fuel pressure regulator. Sending Unit Failure: This is the most common cause of a gas gauge not working. If there is an issue with the power going to the gauge. Check the Fuel Gauge Fuse: Start by inspecting the fuse associated with the fuel gauge. That’s because the fuel follows gravity, and wherever the float sits will rise or fall. AUTOMATIC. The analogy of the fuel gauge inconsistency is a typical example. If you want to figure out if it is the sender or the gauge (not likely the gauge) you could measure the resistance at the connector with a full tank of gas and compare it to the resistance with an empty one. If it does, then the problem is the sending unit in the tank. Sep 16, 2022 · Some common problems after changing the fuel pump include low fuel pressure, incorrect fuel gauge reading, failed engine start, and an unusual noise when accelerating at low speed. Hello I just got a 1990 Wrangler and my first project is to fix the fuel gauge. It was helpful I'm purchasing the 05 fuel pump assembly for $20. Inspecting and repairing or replacing the wiring can often resolve this problem. If not - then it might be the cluster, or in some cases the harness (which I doubt). Also do a cluster test by holding down the trip meter button and turning the key to run, that will test the function of the gauge in the cluster. One more issue after changing the pump is lower gas mileage. If the gauge was working OK before the replacement I would suggest Nov 20, 2018 · The fuel level sender is part of the fuel pump assembly and is difficult to change if you don't have the mechanical skills and tools. If the fuse is blown, replace it with a new one. I had wondered about filing with liquid instead of vapor but wasn't sure how that would work. Jun 4, 2024 · Here are four ways that the gas gauge can fail. 1 year ago: on occasion when the car was started it would give a false reading on the gas gauge, oftentimes showing empty. Hi, thank you perfectionist for your answer. How To Fix Toyota 4Runner Fuel Gauge Problem Oct 13, 2023 · Fuel Delivery System Issues: If your vehicle has problems with the fuel delivery system, such as a clogged fuel filter or a failing fuel pump, it can affect the fuel gauge’s accuracy. Parts can get disconnected, worn, or corroded. Drive the thing home, and see the fuel gauge is pegged on empty with the fuel light on. I usually don't let it get this low before refueling. Check this first if more than one gauge is acting erratically, as this is likely the solution to your fuel gauge problem. The pump functions fine, so the truck runs. This will allow you to cut the ground lead from the top of the secondary fuel sender unit, pry off the small plastic cap and fix the ground. The first step in diagnosing and repairing a faulty fuel gauge after battery change is verifying voltage at the fuse panel. The sending unit may be defective and need to be replaced. The gauge may read the voltage feedback from a dead sender as ‘Full’ or ‘Empty’. Make sure that wire has battery voltage on it going to the gauge. Remove the 3 green insulators from the sender/pump module. Dec 1, 2023 · Once the wiring is repaired, test the fuel gauge to see if it’s working correctly. Jan 10, 2006 · 8275 posts · Joined 2003. A faulty installation can cause leaks. If you have fault fuel gauge, it is likely an easy fix. You can rip it all apart and just replace piece by piece, but it's easier to replace the whole module, which of course makes the company more money. Consult your vehicle’s manual to locate the fuse box and identify the appropriate fuse. Typical causes are: -Failed/failing sending unit (in the tank), part of the pump I believe. At one moment it will display that your fuel tank is full, and a few moments after, it may display that your fuel tank is empty. Sep 26, 2023 · When you go over bumps and dips in the road, the fuel gauge can hop up and down causing your fuel gauge reading to fluctuate. May 18, 2024 · First, locate the fuse box of your vehicle and check the fuse related to the fuel gauge. Maximize. com/donat Most gas gauge issues can be traced to an issue with the wiring near the tank, or with the sending unit itself. May 4, 2007 · Chevy dealer. So since then, I have driven about 150 miles. VISUALLY INSPECT THE SENDING UNIT / TEST. Why fill it up BEFORE you know if it works or not. Jan 26, 2024 · No more fuel leak. paypal. The tan wire ohms out to the gauge, I get 10. Same issue on the old cluster anyway. The first step in tackling this problem is to gain access to the fuel sender unit. If the fuse and wiring are in good condition but the fuel gauge is still not functioning properly, it’s time to test the fuel sending unit itself. Gas Gauge works until about half full then at about 1/4 full will dip to zero and quickly start showing more gas level than is really there. Tried to reset computer by unhooking batteries cables, still recording 3 gallons. 0-1/2 tank = DS tank 1/2 tank to full = PS tank If the car sees that the DS tank is lower level than PS tank you should get a CEL. Things that can interfere: 1. Friday, September 27th, 2019 AT 10:10 AM. The assembly can also be on the expensive side. The Fuse Has Blown. Plus the wiring was WRECKED under the hood when I bought it. The gauge gets BOTH signals, (ohm readings), then averages them. Slide the pump socks in carefully then attach the sending unit to the hat itself with the 2 screws. Short of pulling the pump out again and inspecting it, you really cannot do much. Just drop it in plug everything back together and secure it down. The most common reason for a fuel gauge to not work. 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 2000 Chevrolet Blazer has 18 problems Jul 8, 2020 · A fault in these parts will cause gauge failure or make it give incorrect readings. If your wiring and fuse test as passed, usually the next option is to remove the fuel sending unit / fuel pump assembly from the tank and inspect. The fuel gauge won’t show the correct reading. Mar 8, 2017 · Fuel gauge would just drop to empty. One possibility is that the problem lies with the fuel sender unit. It's now a complete module, rather than a hanger assembly like the older fords used to have. 5L. Measure the distance from the flat surface to the bottom on the level float in the empty position expected 6mm distance. If the fuse is not the issue, move on to the next step. Over time, the fuel filter can become worn or blocked in a way that can cause Jun 4, 2021 · The next step is to check for voltage drop. Initially the gauge would not indicate it was full when the tank was full AND it would only show 4-6 bars when the tank was empty. I had the fuel pump out several times to clean the float wiper with carb cleaner. An original gauge sender was: 100 Ohms = no needle movement, 80 Ohms just barely moved, 25 Ohm @ 1/2 tank, 10 Ohms @ full tank. 2WD. Go to the cluster and unlock and get into menu # 6. I've seen a DIY on audizine on how to replace the fuel sender but it's for a B7 - googled B8 sender and nothing comes up. For some reason though my fuel gauge is showing random fuel levels. Problems: Fuel gauge not working. The fuel level sender on this vehicle is connected to the fuel pump module that goes in the fuel tank. If voltage is not present, then there could be an issue with fuse or Aug 17, 2016 · Remove the screws that hold the sending unit to the tank and take it out. Thanks, I tried that, the car was unplugged for about 20 minutes. Mar 31, 2015 · The fuel gauge did not do this immediately after the pump was replaced, but about 30 days later. Move the float arm up and down. Lift the float arm and watch the DVOM readings. Usually, you do not replace the pump alone. I will get full one day and half a tank the next and then back to full. Burned-out fuses and bad wires can interrupt the signal between the fuel-sending unit and the gas gauge. 80,000 MILES. There's two fuel pumps in the fuel tank. The fuel pump has a float on it. I even looked online to do a reset and that didn't work either. It is easy enough to locate and I didn’t bother documenting this part. A fuel leak can affect the accuracy of the fuel gauge readings. I replaced it with the A/C Delco. com/gp/product/B0716QJRYD/ref=as_li_qf_asin_il_tl?ie=UTF8&tag=2004047-20&creative=9325&li Jun 23, 2015 · So, it would seem it's not a direct replacement. If you come to a fork in the road take it. . Over time, the contacts can wear, leading to an open circuit. 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. When I first started it up after I replaced the fuel pump, the fuel gauge needle would jump around when I pressed the brake. If the wiring for that float is loose, or if the float got stuck in position when the pump was installed, then the gauge will not be accurate. 250,000 MILES. Fuel gauge behaves erratically. The wiper on the float level sensor on the fuel pump had begun to either fail or become dirty after 8-10 years. New pump works great, so I changed the fuel filter and put the truck back together. Burned Out Fuses or Corroded Wiring. Had new fuel pump installed now the fuel gauge and associated information displays 3 gallons although I filled tank. Sure, you need to ground the fuel sender wire to make sure the gauge and wiring is okay and that the fuel level sender has failed from inside the gas tank. com Nov 19, 2023 · Fuel Gauge Not Working Properly After Fuel Pump Replacement. I know the truck has better than 3/4 tank of fuel though. He said right now it's reading at 3/4 of a tank and that it was a lot of gas in the tank when he swapped the pump. I’ll drive about 90 miles and the gas gauge will read about a half tank with only 200 miles until empty. Unfortunately, sometimes this happens even if you are careful and means either replacing the sender or tearing it back apart and This is why your fuel gauge is wrong!! This is a short form video created from the original. After topping off the tank the fuel gauge only reads 3/4 full - it isn't the cluster as I've just had that replaced (£1400!!). Oct 5, 2011 · A little background, almost 2 years ago I replaced my fuel pump. The 2009 Hyundai Santa Fe has 19 problems reported for fuel gauge sensor not working properly. If you plug the connector back and test again, the fuel gauge sending unit should create resistance. #1. Start by visually inspecting the wiring Jun 3, 2016 · Hello. Oct 24, 2016 · Disconnect the 5-pin pump and guage connector at the tank. It could also be part of a normal condition. At this point, my gas gauge reads slightly less than 1/2 tank, however, my economy computer says I have about 2/3 Oct 27, 2023 · A total instrument cluster replacement can range from $750 to $1,250. There are a couple of reasons that would cause the fuel gauge to stop working. 3/4 indicates 71%, 1/2 indicates 50%, 1/4 indicates 29%, E indicates 8%. It can also lead to low pressure. Such as-. Took it to the dealership and they found the fuel pump completely cracked/separated (see attached). Average repair cost is $490 at 157,050 miles. Step-by-Step Diagnosis of Fuel Gauge Problems. Ive tried a few different pairs of fuel pump and sensor but no luck. In order to replace the fuel gauge sending unt, fuel tank has to be removed, then fuel filter has to be removed. Gauge said tank was 7\8 empty yet only took 7. Jun 30, 2007 · The resistance reading in the fuel gauge circuit may be increased and the result will be the same as tweaking the float arm. #1 · Aug 14, 2021 (Edited) My 2008 350z fuel gauge always reads empty, the rest of the gauges work fine and as far as i can tell fuses and relays are all fine. If the fuel gauge is now showing an empty reading, it means the fuel gauge is faulty and needs to be replaced. Oct 29, 2019 · The input from the two fuel level sending units are averaged out for the fuel gauge reading. To check the wire connection on the sender unit, in most cases, it’s located beneath the back seat or trunk. The fuel-level sending unit contacts were visibly oxidized or covered with black gunk. -Recently someone replaced a trans speed sensor (IIRC) and it was bad and caused fuel gauge issues. The Wires Are Worn Out. -when i go for a long drive the fuel gauge says full but i can pump up to $10-$15. fc qo zu gy rj bh du ze xc gm