Evavaporator making noises

Replaced an evaporator motor which had previouly been put in to replace original with an alternative which changed the original electrical connectors. Had to replace those replacements witn originals which extended the changeover.
Now works like the original and very quiet because your motor fit in the original rubber bushings. The alternative motor was put in by the Frigidaire repair man and at considerable expense because the warrenty date had been exceeded by one month.