copied .................As far as it causing problems, it can, especially with steam cleaning. Often times this can ruin the lubrication of the pulley's and lead to premature death of the bearing.
Yes ! A good point, a man must be careful.., particularly with high pressure.
We used to wash engines, vinyl seats, and the whole car with just a garden hose - problems sometimes with moisture inside the distributer cap or at connections.
This reveals that the cap needs replaced with one that seals better in many cases.. also a connection that was not 100% in the first place...