[jlex]

Now aren't you glad you did the job yourself instead of having the car towed to a shop?
Although my car wasn't disabled due to bad sensors, I replaced them anyway when I saw the insulation was crumbling off.
Have fun with the boot replacement.... bit of a messy job, but doable if you don't mind working on your back. Do both sides. Hopefully, dirt hasn't infiltrated the CV joint... if so, disassembling, examining and re-packing the joint may be necessary. Luckily, I caught mine just as it tore (from stress on the joints from jacking the car up).... old rubber does that.