There’s nothing worse than finding out your Mercury Mariner’s parking brake is stuck, especially when you’re ready for the day. The good ...

When your Mercury Mariner is in Park, its engine RPM level (revolutions per minute) should stay relatively even. If it doesn’t, there’s ...

P0200 is a common OBD II error code that can occur in the Mercury Mariner. It indicates an issue with your vehicle’s fuel injection system. ...

If your Mercury Mariner has a humming noise at high speed, it can be distracting and, depending on the cause, dangerous. We’ve outlined the most ...

P0324 is a common OBD2 trouble code. It indicates that there is an issue with your Mercury Mariner’s knock control system. While P0324 is a generic ...

P0026 is a code that signals an issue with your Mercury Mariner’s intake valve control solenoid circuit. In layman’s terms, the circuit is not ...

P0501 is an OBD2 trouble code that indicates there is an issue with your Mercury Mariner’s Vehicle Speed Sensor (VSS). It occurs when the Powertrain ...

Daytime running lights (or DRL) are specialized lights that come on when your Mercury Mariner’s regular headlights are turned off. Their purpose is ...

P1289 is a manufacturer-specific diagnostic trouble code. In the case of Ford-built vehicles (such as the Mercury Mariner), it indicates that the ...

P2271 is a generic DTC trouble code that can affect the Mercury Mariner. It indicates that the oxygen sensor located on bank 1 in the second ...