markmdz wrote:My wife has a '97 QX-4 and the same damn thing is happening.
I've narrowed it down to a few things I think could be causing it.
1. The exhaust hanger WAY up high above the axle and just before the muffler (front to back) looks like it's stretching out and causing the exhaust to bump around a bit. I already have a new hangar and will replace it this weekend and go for another drive.
2. When replacing the rear shocks last year (noise was not evident until a few months ago) I noticed the bump-stops on the inside of the coil spring was just flopping around inside the coil. After looking at the service manual it looks like that was supposed to have been bolted to the upper part of the inside of the spring. Not anymo'. Anyway, I have yet to drop the axle and replace/remove that, and I suspect that's the main source of this damn friggin noise that won't leave me alone.
Well good news and bad news....
I replaced the stretched out exhaust hanger only about a week after my last post. The wife told me the noise had gone away, but just last weekend I drove it and that damn noise is still there. I need to get to the bottom of this soon. Next is trying to replace those bumpstops, but I'm not at all happy about having to drop the whole rear axle just for those stupid rubber bumps.
I'll check out the spare too, but when I was under there last I didn't feel any play at all on it.