DID YOU KNOW OVERFILLING YOUR GM VEHICLE FUEL TANK COULD RESULT IN SEVERAL ENGINE PERFORMANCE ISSUES?
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IMPROPER FUEL FILLING & HOW TO AVOID DOING SO
When you visit the gas station in a GM vehicle, you must know how to fill the gas tank correctly to avoid overfilling. Although it might seem intuitive, sometimes you might attempt to fill your gas tank with a few more drops to reach the prepaid amount on the pump. However, if you continue filling the fuel tank after the third click from the nozzle, you have likely overfilled the fuel tank of your GM vehicle and caused gas to enter the vapour vent lines connected to the EVAP canister.
ISSUES THAT MIGHT HAPPEN IF YOU OVERFILL YOUR FUEL TANK
Once fuel makes its way into the EVAP system and its various lines or components, your GM vehicle could experience various issues that sometimes affect drivability. For starters, the fuel tank pressure sensor may detect the excess fuel and cause a check engine light to illuminate for code P0451, which is common for GM models with the 2.0-litre four-cylinder LSY engine. Those newer models have a capless fuel fill, but it functions the same regardless, meaning that you stop filling fuel once the nozzle clicks once.
Whether you have overfilled your GM’s fuel tank or wish to perform regular maintenance on your vehicle, our experts from the Service Centre are ready to help. Schedule a service appointment with our dealership today and learn more about Cadillac premium car maintenance to enjoy your Cadillac for years to come.