I would like to know what causes it and how to fix it. 2 weeks ago I took it for an alignment after I replaced the tie rod, it was crooked before but I attributed to the tie rod and it was fixed after the alignment. Now 2 weeks later I picked up my car from the body shop and the steering is crooked again (have to hold steering wheel about 30 degrees to the right to keep the car driving straight). What causes this and will an alignment fix it? Why did it happen again after it was first fixed? Thanks for the info.

Definitely sounds like your alignment is off. BUT, check for low air in a tire as well.

Im sorry but that pic in your sig is damn near creepy and makes me difficult to take your posts seriously. :P

Tire pressure is normal, im still under a one month "get in for free during this time if something is not right" and ill have them do it again.

Is there any real significance when they have 6 month, one year, two year ect. alignments? I mean **** I went for thousands and thousands of miles without ever having an alignment done to my car and this sort of thing never happened before till after I got my new tires and I found out I had a bad tie rod.

What causes it is an alignment technician that is too hurried, too lazy, too complacent, or too ignorant to adjust the tie rod ends properly.

Take it to a good alignment shop and ask them to adjust it for you.

It can be fixed by adjusting the outer tie rods the same amount in on one side as the other side is adjusted out. This does not change the distance between your front wheels at the tie rods, and thus does not affect the toe-in, but causes the pinion connected to your steering wheel to move along the rack, rotating your steering wheel.

I'd have to agree. The tie rod it'* self can rotate almost all the way around either loosening or tightening if the nut that tightens agianst the tie rod end isn't tightened. So the alignment shop may have aligned it but didn't tighten the nut down enough.
If that sounds confusing, there is only two nuts that are around the tie rod end. The one I'm talking about is the one without a codder pin.

The other possiblilty is they didn't straighten the steering wheel before lining up the car.

I'm not 100% clear on what the author is saying but I said what I did based on:

The shop who algined should fix the problem, unless you want to do the tie rods yourself. Make real sure tho if you do to adjust the tie rods very equal amounts.

when you let go of the steering wheel on a god road, does the car stay straight for at least a little while, or do you have to forcibly keep it straight?

Note that before taking it in.

They need to center the steering wheel. Centering the steering wheel is all part of the alignment. IMO It sounds as if they're not too competent in front end alignments. If no satisfaction with original place, find a reputable front end alignment shop & have it done right.

Went to the shop and had it corrected for free, what happened was when the control arm mounting was welded back together they didn't do an alignment.