I'm owner of Toyota Sienna 2011
5 years 2-nd owner 79k miles
and experience whirring noise in rear after visiting Toyota Dealers in Danvers without any success accept price tag for replacement 1.9k rear differential coupler. A few drivers have that same problems:
http://www.siennachat.com/forum/40-general-discussion/10759-whirring-noise-rear-end-2011-sienna-awd.html
After that do some research and find the other owners experience that same issue find that TSB #TSB-0080-13 NHTSA ID #10052631 with model RAV4 use this same differential coupler have warranty enhancement.
for now i will fix that because of 3 kids on board and I don't want to risk to stall diff. when I drive...
In my opinion it is flow in dsg. to blow up bearings
I'm owner of Toyota Sienna 2011 5 years 2-nd owner 79k miles and experience whirring noise in rear after visiting Toyota Dealers in Danvers without any success accept price tag for replacement 1.9k rear differential coupler. A few drivers have that same problems: http://www.siennachat.com/forum/40-general-discussion/10759-whirring-noise-rear-end-2011-sienna-awd.html
After that do some research and find the other owners experience that same issue find that TSB #TSB-0080-13 NHTSA ID #10052631 with model RAV4 use this same differential coupler have warranty enhancement. for now i will fix that because of 3 kids on board and I don't want to risk to stall diff. when I drive... In my opinion it is flow in dsg. to blow up bearings
- Slawomir J., Danvers, MA, US