ADVocate, thanks for the additional description of what you are experiencing. I would tend to agree that there may be something going on with the KDSS. The "intermittent" is the bane of the vehicle owner. I think it was invented by the auto dealer as a description of something that can't be duplicated for the service people so it therefore must be normal operation or a creation of the owner's imagination.
Hey guys, I'm from t4r.org and I own the gx470's little brother; an 04 4runner. As you might already know, we share the same drivetrain. The thump has been an issue with the 4th gen 4runner also and since they don't have KDSS I tend to think that's not the cause. A few members have gotten some good results by lubing up the drive shaft; apparently it's fairly dry from the factory. The thump will return after a while at which point, lubing up the drive shaft again will quiesce the problem. Hope this helps.
New Update On Thump
in 03 - 09 Lexus GX470
Posted
Hey guys, I'm from t4r.org and I own the gx470's little brother; an 04 4runner. As you might already know, we share the same drivetrain. The thump has been an issue with the 4th gen 4runner also and since they don't have KDSS I tend to think that's not the cause. A few members have gotten some good results by lubing up the drive shaft; apparently it's fairly dry from the factory. The thump will return after a while at which point, lubing up the drive shaft again will quiesce the problem. Hope this helps.