***Part replacement problems***
A lot of dishonest mechanics have charged customers for parts that weren’t used. In addition, the mechanic will charge you for the labor required to install the non-existent replacement. It’s a double rip-off! The old used part switch-a-roo is another common car part related scam. Used parts are a viable option for many repairs, however, some mechanics charge customers for new, premium parts after installing sub-standard or used car parts. Always ask for your old, damaged part back after it’s been replaced. It helps keep your mechanic honest. – Centricauto.com