Tag Archives: Mariner

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 common reasons why a humming noise in your vehicle gets louder with speed. We’ve also provided an audio sample of each issue to help determine …

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 code, repair steps will vary depending on your Mariner’s engine type and model year. However, some basic steps can be followed to help diagnose …

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 complying with the Powertrain Control Module’s commands. It sent a signal to the intake valve control solenoid, and it, for whatever reason, failed. P0026 is a …

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 Control Module (PCM) gets a signal from the VSS outside its normal operating range (in terms of voltage). P0501 is a generic powertrain code, which …

Daytime running lights (or DRL) are specialized lights that come on when your Mercury Mariner’s regular headlights are turned off. Their purpose is to make it easier for other drivers to see you, theoretically decreasing the odds of getting into an accident. If your Mariner’s DRL warning light is on, …

P1289 is a manufacturer-specific diagnostic trouble code. In the case of Ford-built vehicles (such as the Mercury Mariner), it indicates that the cylinder head temperature sensor returned a value to the powertrain control module (PCM) that was greater than the signal should be during a self-test cycle. The most likely …

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 position is continuously sending voltage with a value that is too rich. There are oxygen sensors on both sides of the catalytic converter. The …

P0116 indicates that your Mercury Mariner’s engine coolant temperature sensor is sending a signal to the PCM (powertrain control module) that is outside of its normal operating range (in terms of voltage). While P0116 is a generic OBD2 code (it has the same definition for any car or truck), it …

P0117 is a generic OBD2 code.  It indicates that your Mercury Mariner’s PCM (powertrain control module) has detected the signal coming from the engine coolant temp (ECT) sensor has a voltage level below its normal operating range. With the ECT sensor, as the voltage level drops, it will appear that …

P0036 is a very common O2 sensor-related trouble code. It’s generic, which means it has the same definition for the Mercury Mariner as any other vehicle. This code is almost always caused by a bad heated oxygen sensor or wiring issue and is almost always symptom-free. P0036 should NOT be …