Chevrolet Corvette transmission failure and inoperative fuel gauge resolved by replacing transmission and sender on Chevrolet Corvette

Some Chevrolet Corvette owners report experiencing transmission failure and inoperative fuel gauge issues. These problems can stem from sulfur deposits building up on the fuel level sensor, which disrupts electrical continuity and leads to inaccurate readings. In particular, some owners find that their fuel gauge indicates "FULL+" even when the tank is nearly empty, and reversing the wires on the sending unit can sometimes correct this misreading. Additionally, if the fuel gauge shows inaccuracies after initially functioning correctly, it may indicate a problem with the sensors or pumps, necessitating the removal of the transmission and tanks for repair. Some owners have encountered history codes for out-of-range values that cause the gauge to drop to zero until the code is cleared. Sulfur contamination is also known to disrupt the electrical continuity of fuel sending units, resulting in erratic readings, but using GM Fuel System Treatment PLUS can help mitigate these effects. Furthermore, issues may arise from the lubrication sensitivity of fuel sending units or pumps, and using fuel cleaner lubricants like Exxon Techron can assist in addressing these concerns.