Hello!

I just recently purchased an ‘11 IS250 AWD with 107k miles from a private party. Unfortunately I did not pick up on the “clunking” sounds when moving the gear select from P to D, P to R, D to R, or R to D. It occurs even with the emergency brake engaged and foot firmly on the brake. I’ve completed a novice look at the driveshaft and could not find any obvious play. To me, it seems the noise is coming directly from the transmission.

I’ve done a lot of google and forum searches and it seems this is a relatively common occurrence in the IS250. However, I have not seen in a single place where anyone resolves the issue, or even names the problematic part specifically.

With any of you that have had this problem, what was your resolution?

 

Please verify it has four matching tires and from there get it up on a drive on lift and have a trusted helper shift from F/R R/F while placing a wood dowel or stethoscope to your ear.

Listen for the clunk at the transfer case, trans and both differentials. It could be as simple as a bad trans mount or worn u-joint on the drive shaft or center support isolater.

That said it is not uncommon and it does not indicate failure..

People that come to a complete stop before switching direction are far more likely to notice clunks than those who toss it into rewind while still going forward and vice versa.

 

thanks for the advice! I’ll give this a try and see what happens.

 

Let us know what you find.
GL