Regular maintenance and major equipment replacement jobs had increased by 60 percent in the last six years, he said. (scientificamerican.com)
To be honest, when wholesale replacement jobs like you've described are completed, multiple issues can be missed, incorrectly installed or even have compatibility issues that can lead to a vibration. (yourmechanic.com)
This process costs homeowners much less than a total replacement job. (realtormag.realtor.org)