Originally Posted by hcarter
I went down into the garage last night and tried out my new shark steam unit on my engine , does a really nice job cleaning the magnesium metal , . 
Please say more about this procedure. I'm intrigued ... not so much with the sanitize and deodourize features - but more with the cleaning effectiveness. You are the only person that I've heard to have used one of these things much less on the motor.
What is the process, the solution used (if any), the results? Do you have before and after photos?
I've wanted to do my Avalanche for some time now but I'm concerned about damage to wiring, computers etc. etc.