FUEL SENDER REPAIR -- ET-214. These vehicles are having major problems with the fuel sending unit, located in the gas tank on the fuel pump. There are 2 bolts at the rear of the seat rails, and two nuts on the front of the seat rails. Old rags or tissue to mop up any fuel spills; Plastic container to place under car to catch any fuel spills; The Process 1. It has 2 wires; a brown ground wire that attaches to the grounded tab connector and a yellow (or some other color) “signal” wire that attaches to the insulated tab connector. Remove the screws that hold the sending unit to the tank and take it out. The fuel line is 3/8 inch O.D This meter has a brass nut on the end, to attach to the brass nut on the gas line coming from the frame to the tank. The average cost for a Jaguar S-Type fuel level sending unit replacement is between $1,753 and $1,864. NOTE #3: Code P0462 specifically refers to issues in the fuel level sender unit input circuit, even though incorrect or erratic fuel gauge readings can also be caused by short circuits and other problems between the sender unit and the fuel gauge. Re: Fuel Guage and Sending Unit Problems You have properly diagnosed your problem as a bad sending unit. I replaced the fuel sending unit in the tank and solved the problem. The new one has worked fine. Running on Empty A fuel gauge needle that is resting on empty when the vehicle has fuel, may be due to total failure of the sending unit parts. any dash gauge problem and/or a problem with your gas tank sending unit problem. The sending unit is mounted on the driver's side and as stated, the side panel hinges up for easy access. After 1 month now, i have noticed a slight "wetness" on top of the tank. One of the first symptoms of a problem with the fuel gauge sender is a fuel gauge that behaves erratically. A faulty fuel gauge sender may cause the gauge to suddenly change positions, or give an inaccurate reading. All Foreign & Domestic Fuel Sending Units Page 8. Fuel Sending Unit. Apr 30, 2013. Single 3/8" fuel line, no return line to answer your original questions about diameters and number of lines. the sender is bad. GM Fuel System Treatment PLUS, Fuel Sending Unit Corrosion and Fuel System … 1) Locate the fuel sender feed wire near the fuel tank. For the three connection type, one wire runs to the gauge, another wire connects to the power supply, and the last wire connects to the ground or the negative side of your battery. Only cars that use electronic fuel gauges or fuel injection computers utilize a fuel sending unit. The fuel gauge in your automobile indicates the amount of fuel that remains in the gas tank. 4. Estimate does not include taxes and fees. I will run out of gas when the gauge hits the 1/4 full mark. The constant friction wears off the contacts, leading to its failure. The most common gauge problems are either a bad ground at the tank, or a sender problem. Hi Matt, Under the rear seat is an access plate to the fuel tank sender unit (you may already know this) there are three wires one is an earth connected to the tank body, check this one is earthing correctly, the other two disconnect & earth to a good point, if the low warning light comes on move onto the other one & this one should move the gauge, if this happens your sender unit … Because the gauge is reading a resistance to ground having proper grounding of the sending unit is essential to get an accurate reading on your fuel gauge. If not, find and repair the break in your sender wire. the problem is … Gas gauge - Remove the wire from the sending unit and ground it. This will expose the gas tank and its contents, so make … 2001-03 GMC Sierra & Chevrolet Silverado 2500HD, 3500 Duramx Diesel Fuel Sending Unit Repair Kit Page 6. As I said earlier, the problem could be originating from the sender unit in the tank. To determine what is causing the problem: • Remove the wire from the contact stud on the sender. Assuming your unit doesn't survive out from the suggested check, years of corrosion/crud in gasoline take their toll. If not, then drop the tank (s) and pull the harness. Adding Techron, or SeaFoam simply cleans the contacts more quickly. With the tan wire disconnected at the fuel tank, the fuel gauge should read past full with the ignition on. If not, the sending unit needs repaired or replaced. Tim Barker. Martinsburg, WV. As with any electrical troubleshooting, it is best to check the fuse and all wiring connections are clean, tight and free of corrosion. (Shown below). Registered: Mar 2003: posted 04-22-2003 08:14 PM I have just installed a new fuel sending unit in my gas tank. /. Next, remove the three wires on the back of the old gauge. My fuel gauge will stay in E once in a while with Orange new-fuel light on. By January 2015, the investigation led to a fuel gauge recall of 68,000 Quests between the 2007-2009 models years. this problem is caused by a defective fuel gauge sending unit, the sending unit is part of the fuel pump modual ( sender and fuel pump assembly) and is located inside the gas tank, the tank must be removed to replace it. I went to the test with the circuitry from the sending unit … S-Type. When I bought it the fuel wasn't working (stuck on E with low fuel light illuminated) they said Ford had diagnosed it being a bad sending unit and parts were already ordered so I went ahead and bought it. The fuel pump, filter and sending unit are all one piece located in the fuel tank. Recheck both wire runs from the sender, both to the wiring harness and to the ground. Then we ran the ground from the sending unit all the way up to the battery ground. This week, we cleaned the area around the tank and added a ground wire from tank & from the sending unit to chassis. Fuel gauge troubleshooting begins with isolating the problem either to the gauge, sending unit, fuse or wiring. Fuel Gauge Problem Diagnosis. In most cases, to gain access to the fuel tank sending unit mount / fuel pump mounting hole, you’ll need to drop the gas tank down. A bad sending unit may cause the fuel gauge to suddenly shift positions, or give an erroneous reading. I currently have the Spectra Fuel Sending Unit (SU) that was installed about 4 years ago while on the Road/Vacation. Just for grins I removed the potting tar on the old sending unit and did testing and … (electronics, true … Remove the ground connection, clean, and re-attach. 2 problems fixed in one!!! Fuel gauge problem solved The problem with my '97 Brighton wagon 2/2l fuel gauge turned out to be corroded contacts on the driver's side sending unit (the one w/o the fuel pump). I found some cheap ones on Amazon but didn't like how they worked. For this, identify it and replace or repair it. Start by removing the fuel level sender from the tank.
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