2003 gmc envoy_slt_xl
Hi,Thanks for the excellent write up. I'm going to try this myself after seeing it. It's so much nicer to see full color photos!
I've been told that the problem was most likely the CVC Axel or the wheel bearing. The symptom is a loud roar or hum that gets louder when the wheels start moving faster. It sounds like it's coming from the front driver side, but I haven't tested using the "turn" method. I'm going out to do that now.
Is there any way to visibly tell if the bearing is bad? Even if I have to pull the caliper off, I'd still like to know that is the problem before I drop $200 on it!
You can tell if it's the CVC easily. While driving and hearing the noise, shift the gear to Neutral and see if the noise remains. The CVC produces noise when there's load on it. When you shift to N you actually remove the load.
If you find that the noise remains, then it's the bearing.