I bought a car ~7 years ago in Illinois and transported it to California. Pumps in IL worked fine with the car, but upon arriving in CA, I found that gas pumps will prematurely shut off, almost immediately upon pumping, regardless of how empty the tank is. In order to prevent the premature shutoff, I have to lift the pump hose at about a 45 degree while pumping.

Any idea what's going wrong here? Is it my car or the pump? Is there a difference between the pumps in IL vs CA?