Originally Posted by ET16
I prefer a fairly clean engine. I remember, though, that Click and Clack were against engine cleaning, as they thought it was too risky for electricals.
With pressure washing maybe, but if I can't run a garden hose over my engine without problems, that's a problem. I drive in rain and stuff.
I've never had a problem with electronics personally, though I did see it every now and then years ago when I worked at an auction where we would pressure wash some engine bays.
I like to take a long drive immediately after to make sure things are dry. Some connections get sprayed with connector cleaner (aerosol rubbing alcohol).