Chevrolet Trailblazer fuel gauge not reading full and engine not starting properly on Chevrolet Trailblazer

Some Chevrolet Trailblazer owners report experiencing issues with the fuel gauge not reading full, which may be attributed to problems with the fuel level sensor or the sending unit. Common causes include faults in the instrument cluster, defective drive motors, or a malfunctioning fuel-sending unit. Additionally, a faulty fuel pump or a damaged float arm could lead to inaccurate readings, with some owners noting that a worn fuel pump may cause the gauge to read empty even when the tank has fuel. Furthermore, some owners report difficulties with the engine not starting properly, which could be linked to fuel pump issues that affect the engine's fuel supply for ignition. In certain cases, a malfunctioning fuel pump may have been misdiagnosed, resulting in ongoing fuel gauge problems despite replacement efforts. It is advisable for owners to seek professional diagnosis to address these issues effectively, ensuring proper functioning of the fuel gauge and engine performance.