I have a 2003 Ford Focus and I have several problems.

1-I have only one tire that seems to wear badly in a wave pattern. I have replaced the shocks and struts and it still hasn't changes this. Could it be the Alighment?

2-I am having trouble with my dash the gauges like to flicker especially after it has rain or snow. Where would the shortage be in the electrical?

3-My car likes to die especially when I am slowing down to turn or just after I turn before i put on the gas. I am have been researching it so I am thinking it is the fuel pump. Also when did Ford start putting in access panels to the fuel pump?

Would it easier to replace the engine?