I found this earlier - http://alflash.com.ua/avtovideo/2005l/L-DL001-08.pdf
I am unsure of what is going on. I live in PA so when it warms up later this week, I am going to be crawling underneath for a look.
I have a 2006 with similar miles and a similar issue. I can almost feel the noise / vibration like bass from a stereo. It doesn't fluctuate in mine - more of a constant drone-type of thing that goes away at slower speeds and happens intermittently.
Hi all,
Recently purchased a 2006 GX470 with 103k miles. Previous owner bought new, was a soccer grandma, and had it serviced religiously. No accidents or issues. I am beyond happy with this purchase and hope to have this truck for the next 10 years.
I used this community (IH8MUD) to help...