Nissan TITAN XD fuel gauge failure after fill up, sending unit replaced for 900 on Nissan TITAN XD

Some Nissan TITAN XD owners report experiencing fuel gauge issues after filling up, such as incorrect readings or complete failure of the gauge. This problem often persists even after replacing the sending unit, with some owners noting that the gauge may initially show a full tank but then drop quickly to 3/4 or lower, indicating potential underlying issues with the fuel system. Additionally, some owners find that the gauge may fail to drop below half, suggesting a possible component failure like a capacitor. To address these issues, some owners choose to replace the sending unit, which can be a costly repair, averaging around $900. However, they caution that replacing the fuel tank or components like the sending unit can be complex and messy, and it is typically recommended for experienced automotive DIYers.