no, engine off for the whole thing. if its on, its warm, you hit it with cold water, that can cause issues.
best to have the engine off, and cover any areas you dont want water to hit. plastic bags work great.
ive cleaned my rangers engine bay several times like this.
best to have the engine off, and cover any areas you dont want water to hit. plastic bags work great.
ive cleaned my rangers engine bay several times like this.