Rumbling but only when I turn

[racerken]

Hi,

I have a 2005 Pathfinder LE 4x4 with 130k miles. I had the radiator failure (engine coolant entered transmission fluid) back at 103k miles so there is some minor damage that causes slow shifting or a nice steady whine at say 1,700 RPM. I was able to catch the problem and have a stand-alone transmission cooler.

Recently I heard a very faint rumbling and slight vibration when I turn to the right going at or about 30 to 40 mph.

My immediate thought is:
power steering rack
wheel bearing (but why only right turn)
a control arm on the driver side?

Any ideas?

Thanks,

racerken

[AZhitman]

Typically, that's a CV axle.

Fortunately, it's not an expensive fix, and you can inspect the wheel bearing (and replace if needed) when the axle is changed.

[racerken]

AZhitman, do you know what size socket is required for the drive shaft lock nut?

Thanks!!!

[racerken]

I now thing that the problem is two-fold:
Wheel Bearing/Hub
+
Front Drive shaft.

The rumble frequency increases with speed and only when I turn right...
Hence right side bearing and shaft?

Sound sane?

Anyway, I still think that the power steering gear is acting up but it's not a cheap fix so I'm praying....