Compass Stalling: Bad Fuel Sensor Causing Trouble

Having some experience with car electronics, I encountered a similar issue on my 2014 Jeep Patriot. The symptoms you describe match what I experienced, particularly the unreliable fuel gauge readings. The fuel sensor system in these models can act up due to a blown fuse. In my case, the workshop found a defective fuse connected to the fuel gauge circuit. The repair was straightforward, they replaced the fuse and recalibrated the fuel sensor system. Total cost was 52 Euro and the car was ready within an hour. Before you head to a workshop, could you share: Current mileage on your Compass, When you last had fuel system maintenance, Whether the gauge shows unusual readings or stays stuck, If you notice any other electrical issues This information would help determine if your issue is identical to what I encountered. While a faulty fuse is common, the fuel sensor itself could also be the culprit. The fuel tank setup is similar between the Compass and Patriot, so the diagnostic process should be comparable.

Thanks for sharing the details about the fuel sensor fault. Just had my service done at 133435 KM. The gauge shows completely unusual readings, sometimes jumping from full to empty while driving. The mechanic connected a diagnostic tool and confirmed an electrical issue with the fuel level sensor assembly. Getting quotes from different workshops since the entire fuel sending unit might need replacement. Anyone here successfully fixed this without replacing the whole unit?

Based on my experience with the Jeep Patriot, I should mention that unusual fuel gauge readings often point to a more complex issue than just a blown fuse. After my initial fuse replacement, the problem returned within a month. The fuel sensor fault turned out to be caused by corroded wiring connectors in the fuel sending unit. My mechanic was able to clean and reseal the connections without replacing the entire assembly. This repair cost 180 Euro and solved the issue permanently. Some key points from my experience: Cleaning the electrical connections resolved the unusual readings, The car sensor needed recalibration after the repair, The fault codes cleared and never returned, Total repair time was about 3 hours If your fuel system shows the same symptoms, ask your mechanic to inspect the wiring connections before committing to a full sending unit replacement. The faulty sensor might just need proper cleaning and resealing. This could save significant repair costs compared to replacing the entire assembly. Also check if there is a technical service bulletin for this specific fuel sensor fault. My mechanic found one that detailed the exact repair procedure for the sending unit.

Thanks everyone for the input. After discussing with several workshops and considering your experiences, I decided to have them inspect the wiring connections first. One shop quoted 320 Euro for a complete fuel sending unit replacement, while another offered to try cleaning and resealing the connections for 190 Euro. The fuel sensor fault symptoms match exactly what others described, unusual gauge readings and error codes. Given the mileage on my Compass and the fact that the fuel tank system has never been serviced, I will start with the less expensive repair option of cleaning the connections. Will book the appointment next week and update on whether this resolves the fuel level sensor issues. If cleaning doesnt fix it, I guess I will have to consider the complete sending unit replacement. Really hoping to avoid that extra cost if possible. Thanks again for sharing your repair experiences.