Electric motors are - almost by definition - giant, fast moving magnets. That will generate current in any nearby wiring, and thus interference. That said, th

Electric motors are - almost by definition - giant, fast moving magnets. That will generate current in any nearby wiring, and thus interference. That said, this kind of interference is much easier to filter than the kind you'd get from 4 to 8 spark plugs firing in sequence. So it's pretty likely that this is easier to deal with.