What Causes the Inaccurate Fuel Gauge in the Buick LaCrosse?
1 Answers
The reasons for the inaccurate fuel gauge in the Buick LaCrosse include the following: Fuel gauge needle moves irregularly: This is a common issue, often manifested as the fuel gauge needle dropping slowly in the first half of the gauge, then rapidly declining after passing the midpoint. However, this irregular movement of the fuel gauge needle cannot be considered a malfunction. It is related to the design of the fuel pump used to reflect fuel levels, which cannot uniformly indicate gasoline consumption. Achieving such uniform changes is difficult and cannot be altered by repairing or replacing parts. Fuel gauge suddenly drops to zero: The fuel gauge's indication depends on the fuel level sensor. When this happens, it indicates a problem with the vehicle's fuel level sensor. It is likely that the fuel level sensor has become contaminated and not cleaned in time. Gasoline contains many impurities, and the fuel level sensor, constantly submerged in it, can become polluted over time, directly affecting the accuracy of the indication. Fuel gauge scale rises: This situation occurs because the linkage between the fuel level sensor and the float is stuck, preventing the float from moving up and down normally. As a result, the fuel level sensor does not change, causing the fuel gauge needle to remain fixed at a certain position.
