The serpentine belt tensioner pulley may wear out. Our technicians tell us that in order to get a new pulley from General Motors you must purchase a complete belt tensioner assembly.
The 2011-2013 Buick Regal is known to have issues with the EVAP system, a part of your emission control system.
The EVAP canister vent valve or valve solenoid wiring may fail causing illumination of the check engine light , setting code P0446 , and problems filling the tank with fuel.
To correct the issue, the EVAP canister vent valve , solenoid, and wiring must be inspected. The most common fix is replacement of the wiring connector or replacement of the vent valve assembly.
Acid may leak from the battery at the cable connections, resulting in corrosion on the battery cable ends and in the battery tray. A Leaking battery should be replaced and the cables thoroughly cleaned or replaced if necessary.
related to exterior-light, turn-signal, wiring