A relatively common, yet difficult to diagnose OBD-II trouble code is P0316. It has the same meaning for the Mercury Grand Marquis as it would any other vehicle. It indicates that there is a misfire at the startup of the vehicle, and that it happens within the first 1000 revolutions of the engine. P0316: Engine … Read more
A relatively common, yet difficult to diagnose OBD-II trouble code is P0316. It has the same meaning for the Mercury Grand Marquis as it would any other vehicle. It indicates that there is a misfire at the startup of the vehicle, and that it happens within the first 1000 revolutions of the engine. P0316: Engine … Read more
P0740 is one of the most common transmission trouble codes. It means that the Grand Marquis‘s computer has detected that there is an issue with the torque converter clutch (TCC) solenoid circuit. P0740: Torque Converter Clutch Circuit Malfunction The TCC “locks” the drivetrain, which allows for a true mechanical connection between the … Read more
P0160 is a standard OBDII trouble code. It has the same meaning for any vehicle with OBDII, including the Mercury Grand Marquis. When a vehicle has P0160, the PCM/ECM is not detecting any activity from the sensor. It doesn’t mean that the O2 sensor isn’t getting power, but that the voltage isn’t changing, which … Read more
P0118 is a common OBDII trouble code. It is a general code, which means that it’s going to have the same meaning for the Mercury Grand Marquis as it would any other vehicle. P0118: Engine Coolant Temp Sensor Circuit → High Input This code is thrown when the resistance coming from the coolant temp … Read more
P0410 is a generic OBDII trouble code. This means that it has the same meaning for the Mercury Grand Marquis as it would any other vehicle. It is letting you know that there is an issue with the secondary air injection system. P0410: Secondary Air Injection System → Malfunction The secondary air injection system injects … Read more
P0506 is a common OBDII trouble code. It is typically triggered when the engine idle speed is lower than the predetermined limit set by the manufacturer. It is a generic code, which means that it has the same meaning for the Mercury Grand Marquis as it would any other vehicle. P0506 Symptoms: Grand … Read more
P0156 is an OBDII trouble code that occurs in the Mercury Grand Marquis. It is typically caused when the O2 Sensor voltage is not within its specified operating range. Bank two will be the side of the engine with cylinder 2 in the firing order. Sensor 2 is aft of the catalytic converter. … Read more
P0505 is an OBDII code that deals with the idle air control system in the Mercury Grand Marquis. It’s a generic code, which means that it has the same meaning for the Grand Marquis as it would any other vehicle (Grand Marquis or not). P0505: Idle Air Control System: Malfunction When P0505 is triggered, it … Read more
P0158 is an OBDII code that occurs in many vehicles, including the Mercury Grand Marquis. The code is triggered when: The voltage at the O2 sensor remains above threshold for 20 seconds or more Voltage to the sensor is to high (wiring problem, think short) Bad O2 sensor itself There are also some less likely … Read more