Your 2001 Toyota Highlander has a lot of wind noise in a strong wind at highway speed no noise when wind is not blowing sounds like a window but not sure any suggestions?
I found the cross supports for the roof rack made a lot of wind noise.I moved them around and stopped most of the noise. I coudn't drive at highway speeds with windows down because of rack noise. Replaced the seals around the affected door.
What if your 2003 toyota highlander heater is only blowing cold air how do you find out what the problem is?
I'm in the same boat: Try reading all pages on these links: http://townhall-talk.edmunds.com/direct/view/.f15850c/0 http://forums.automobilemag.com/70/6248778/toyota/2002-toyota-highlander-problems/index.html this one has photos how to do the repair: http://www.tundrasolutions.com/forums/highlander/32217-heater-quit-sort-of/