The check engine is the most common warning light that appears in the Mercury Grand Marquis’s instrument cluster. Well over half of this site’s ...
If you’re filling your car up regularly and still getting crummy mileage, there are a few things that could be to blame. In this post, ...
P0100 is a generic OBD2 trouble code that indicates an issue with your Mercury Grand Marquis’s Mass Air Flow (MAF) Sensor. This code ...
P0000 is a rare OBD2 fault code that can affect the Mercury Grand Marquis. While there are over 10,000 DTC “P” codes, this is the only one ...
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P0152 is a common OBDII code that occurs in many vehicles, including the Mercury Grand Marquis. It indicates that the bank 2 sensor 1 O2 sensor is ...
P144C is a Ford-only DTC trouble code, and as such, it applies to your Mercury Grand Marquis. It indicates that the EVAP canister purge check valve ...
P0725 is a common OBD2 code that can occur in the Mercury Grand Marquis. It indicates an issue with the engine speed sensor input circuit (which ...
P0193 is a generic OBD-II code that can occur in the Mercury Grand Marquis. It indicates that your Grand Marquis’s fuel rail pressure sensor is ...
P0523 is a standard OBD2 trouble code that can occur in the Mercury Grand Marquis. In layman’s terms, it indicates the signal from the oil pressure ...