Chrysler PT Cruiser fuel tank fills erratically, stopping after one to one and a half gallons on Chrysler PT Cruiser

Some Chrysler PT Cruiser owners report experiencing issues with fuel tank filling, such as the tank filling erratically and stopping after only one to one and a half gallons. This problem may be attributed to restrictions in the evaporative system hoses, including a stuck closed fuel control valve or a malfunctioning flapper door at the fill neck. Additionally, issues with fuel system components like a faulty gas cap, malfunctioning purge valve, clogged charcoal canister, or vent valve problems can complicate the filling process. Some owners also encounter difficulties due to a bad fuel pump, which can lead to rough engine performance or starting issues. Furthermore, water in the gas tank may cause improper firing and stalling problems. Back pressure buildup in the tank and filler neck can also lead to premature shutoff of the retail station fuel pump, creating the impression that the tank is full. It is recommended that owners have a mechanic inspect the fuel system components, evaporative system hoses, and fuel pump to diagnose and resolve these issues.