Am having a hard time putting gasoline in my monte,, It is a 2000 model and is from canada, keeps shutting pump off when filling,,,just like it was full,,,took forever to fill up,,any ideas,,,my wife had it fixed once but it is happening again,,,,also engine light is on,,,everything else is hunky dory,,,,

Welcome to AF, check for a kink in the vent hose to the tank from the filler neck.