Sorry to drag up this old post, but did the alignment fix your problem? I have the same problem on my 2008 with around 34k on it. The only difference is that mine pulls right and dives left, but otherwise the symptoms are the same.

Thanks,
Jason

 

tire pressure. almost 100%.

 

The problem gets worse as my tire pressure decreases, but I still notice it with all four tires set at exactly the same pressure (multiple checks performed).

 

How accurate is the gauge you're using? Rear tires being 1 psi or less different will still cause that symptom due to diameter differences

Also, are both tire diameters the same? (same brand, same tread)?

 

no harm in flipping side to side for a test drive in dry weather where water channeling is not a necessity. if you are sure pressures are equal this would isolate the problem to tire or suspension. I have had problems in other cars with radial pull as well, where the tires and pressure were equal but construction or wear was causing the drag. good luck.

 

Thanks much. I've used a couple different gauges and they all seem to be in agreement. The tires all have the "outside" label as they should. Tire diameters are the same and tread pattern is the same. I'm going to get a four wheel alignment when I can find the time.

One other piece of information: these are Kumho Ecsta all season tires.

 

Take a look at your rims and see if there is a little extra brake dust on one side. After going crazy I finally figured out it was the right rear caliper sticking. Mine would pull to the right when I took my foot off the gas. Only changed the right to only have the left start sticking a couple of months later.

I would catch a whiff of brakes when i got out in the morning. The smell, the extra break dust and then feeling the rim to find it was much warmer then the other side, finally made the light go off in my head.

You have tried everything else . . . . .

 

I had this happen with a spare set of AP1 wheels with crap tires. It never went away.

It's supposed to get fixed with alignment, wheel balancing, tire pressure but sometimes the tires just suck. It's highly unlikely but you may want to check the bolts of the sway bar bushings.