2008 Compass Rallye pulls to right ONLY with passenger
I'm having an issue with my compass pulling to the right, but it only seems to pull or go right when I have a passenger. I had the passenger side ball joint replaced a few months ago and had it aligned at the dealership (mistake). After the aligned it the first time it pulled to the left. I took it back and they "corrected" it and it pulled to the right. So I took it to my local meineke (maybe bigger mistake? lol) and they "corrected" the alignment, however it still pulled to the right slightly less than before. I took it back to them and they corrected, claiming it was still slightly off. Everything seemed pretty good, however I notice driving with passengers it still pulls to the right (I usually am driving alone). Then when I drive by myself it drives normal.
Could this still be an alignment issue, or do you think something else? Shocks are pretty much new, replaced them last summer and it drove fine. Springs seemed okay at that time as well.
Also, I know I have a radial tire pull in at least 1 tire. When I bought the compass used it had new tires on it and when I went to rotate I discovered the pull. I have tried swapping tires around on the vehicle to change the direction of the pull, but really it only pulls right when I have passengers.
Any ideas? If it is an alignment, I'll just get it aligned again somewhere else when I get new tires. I'm just afraid it could be something worse or the stealership didn't install the ball joint right.