Gasoline pump problem

I request your help with the Malibu gasoline pump 1998 6 cylinders Machine 3.1 The reason is that it did not injected gasoline and check the filter, which was very dirty and changed, and work, later we take out the car and circulate without problems reaching our destination, and to return it did not want to work the tank and it operated again, my question is that if the pump is failing and/or it is another problem because if it works. Tumba the tank and does not look dirty but as the Czech to know that if it works well. I appreciate your help and God take care of them.

RoqueFor It is best to remove the pump and prosecute it outside, if you hit the tank and it works again it can happen that the electrical connector is loose or the most normal that the pump sticks after working for a while it happened to me with a Chevrolet the same problem itself changes the pump and it is solved, remove the pump and you will function outside until it folds the fault hits the pump is easy.

Thank you for your comment, I have already lowered the tank but I don't know how to try it anyway I will start quoting the bomb because I imagine it is face, take care and God bless you, I will tell you later.

Friend to prompt it on vast with feeding the pump with a battery has two positive and negative cables, if you have more cables they are for floating and level marker, they are not expensive luck.