No power on turns

Recently Ive noticed a problem with my wagon. When I take sharp left turns, I get no power out of my engine. It's like it just stops. Not on right turns though. At this time I had half a tank of gas so I figured that the fuel pump is on the left side, and when I'm turning all the fuel shifts to the other side and starves the pump. So I filled up my tank and it runs fine around corners now. Today, again, I am at half a tank and it's acting up again. Has anyone else had this problem or have any thoughts on a fix?
Comments
EDIT *** I was wrong. Pump's on the left.
mine doesnt
to truedson87: So does your rt have the access cover?