Dave5353 Posted February 5, 2017 Share Posted February 5, 2017 I just noticed yesterday that my 2007 GX470 makes a low-frequency modulating noise when above 70 mph and when accelerating. It goes away when going down hills and when the speed drops below 65 mph. The modulating cycles at about 170 times per second. It sounds like a drive train issue (transmission, drive shaft, or rear end). Any thoughts? Quote Link to comment Share on other sites More sharing options...
TrevC Posted February 7, 2017 Share Posted February 7, 2017 Hi David...welcome to the Forum It sounds like it could be a wheel/hub bearing. Worth dropping into the garage for them to spin each wheel to hear which one is grumbling. Alternatively, it could be the propshaft centre bearing causing the noise...also,easy enough to check out. Let us know what you find Cheers Trevor Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.