location of fuel tank preasure sensor on 2009 Chevrolet Silverado 1500

is the fuel tank preasure sensor actually inside the gas tank or is it on the top of the outside of the tank.

Asked by for the 2009 Chevrolet Silverado 1500
Just like that Silverado you ask about before!! Check that answer, it is the same. Google image of the sensor then the module.
1 more answer
top of tank in sending unit