Gas tank won’t fill but gauge says it’s below half full

Hi, my name is Devin. I am an auto repair expert with the Car Genius team here at RepairPal. I'm sorry to hear you're having trouble with your vehicle. A problem with the fuel tank venting system could cause the issue with your Equinox. If the vent is clogged or malfunctioning, it can prevent air from escaping as you fill the tank, causing the fuel pump to shut off early. This could explain why the tank seems half-full but won't accept more gas. It's also possible there's an issue with the fuel-sending unit, which is responsible for the gauge reading. A mechanic can inspect the vent system and the fuel gauge sensor to pinpoint the problem. If you need more advice, have any other questions about your vehicle, or would like to get connected to a RepairPal Certified shop near you, we have you covered. Give us a call at 877-913-1554, and we will happily help you out!