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 ...
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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 ...