Yeah really no fix to this POP the way this shaft is designed it's totally binding and I don't think anything they do is gonna fix this issues unless they redesign more but from what I hear the new grease they use will fix this or lessen the noise.. we are not they only ones all the GM mid size cars from malibus and so forth have this same issue.. =(Took my '07 G6 (25k miles) to the dealership last week with the "popping" noise in the steering column when performing slow speed turns. They diagnosed it as a bad intermediate shaft...and of course, had to order a replacement. Haven't taken it back in to have the new i-shaft installed yet. Hopefully this will fix the issue, but I expect the pop to re-appear when the new i-shaft gets some wear (unless the replacement parts have been redesigned.) From other replies I've seen on this thread, it sounds like there may be several potential causes of the noises.
Is anyone else having vibrations when the brakes are applied (especially at high speeds). It feels like the rotors are warped, but they started vibrating with only 20k miles on them...I'm not relpacing rotors every 20k miles!