I've had intermittant engagement issues for the past two winters. Lots of clicking in the pass footwell area, bt usually after 4-6 attempts, 4wd H will engage and the light will come on. This past weekend, it made some interesting new noises. Same clicking, but then a relitively hi-speed grinding type noise...then CLUNK, engagement. I was travelling about 30mph at the time.
Is the module easy to replace? I assume the engagement motor is quite expensive, and more difficult?
thanks