2004 4runner pull slightly to the left

[karyins]

Sorry this is a newbie question. I googled a bit and found various possible reasons but none would tell me if this is normal:

Drving straight on flat highway at normal 65 mph, if I let go the wheel, the truck will pull to the left slowly, about 1 feet every 3 or 4 seconds. Cold tire pressure is 32 psi for all except the front right which is at 31 psi.

The tire tread looks ok to my untrained eyes.

Any insight?

Thanks!

 

[fdbyrne]

Get the alignment checked. Many alignment shops will check the alignment for free. At least they do around here.

Rule that out before digging any deeper.

 

[ncpinz]

^^^ what he said. If nothing obvious, then that would be the best approach.

 

[MikeInNH]

Is the road flat...or like most highways...slightly crowned? Verify that first.

1 psi isn't going to make much of a difference.

As others said...get the alignment checked. Here in the north east with the thousands of pot holes I drive over...my vehicles are usually out of alignment in the spring.

 

[M1911]

As others said, get the alignment checked.