Mercury Mountaineer: P2101 Meaning, Causes + Diagnosis

P2101 is a general OBD2 trouble code. It has the same meaning for the Mercury Mountaineer as it would any other vehicle. It is typically caused by wiring issues at the throttle actuator, or a bad throttle actuator itself. P2101 Definition: Throttle Actuator “A” Control Motor  – Circuit Range/Performance Throttle Actuator “A” Control Motor Circuit … Read more

Mercury Mountaineer P2106:  Meaning, Causes + Diagnosis

P2106 is a somewhat uncommon OBD-II code.  It is not manufacturer-specific, so it has the same meaning for your Mercury Mountaineer as it would any other vehicle. It is an indication that limp mode/failsafe mode has been activated.  There is a myriad of problems that can cause P2106.  The throttle actuator itself is rarely the … Read more

Mercury Mountaineer:  Bad Knock Sensor Symptoms

Modern vehicles use knock sensors to detect engine detonation.  This allows the PCM (powertrain control module) to run very aggressive spark timing.  If you are concerned that your Mercury Mountaineer has a bad knock sensor, we’ve listed them out below. A knock sensor works by listening to your engine and determining if your Mountaineer is … Read more

Mercury Mountaineer U0101:  Meaning, Causes, + Diagnosis

U0101 is a generic powertrain code, which means it has the same definition for the Mercury Mountaineer as it would any other vehicle.  It means that your Mountaineer’s TCM (Transmission Control Module) can’t communicate with the rest of the vehicle, usually due to a bad wiring harness or an issue with the  TCM itself. U0101 … Read more

Mercury Mountaineer P219B: Causes, Diagnosis, + Symptoms

P219B is a generic OBD2 trouble code.  This code indicates that your Mercury Mountaineer’s air/fuel ratio is out of balance (too rich or too lean) on the bank 2 side of the engine in question. Your Mountaineer is equipped with oxygen sensors that measure the air-fuel ratio of your engine. It’s these sensors that are … Read more

Mercury Mountaineer: P219A Meaning, Causes, & Diagnosis

P219A is a generic OBDII code.  The code indicates that your Mercury Mountaineer’s air/fuel ratio is out of balance (too rich or too lean). Your Mountaineer is equipped with oxygen sensors that measure the air-fuel ratio of your engine. It’s these sensors that are reporting the problem with the air-fuel ratio.   With P219A are … Read more

P2097 Mercury Mountaineer

P2097 is a generic OBD II code, which means that it has the same meaning for the Mercury Mountaineer as it would any other vehicle.  It specifically indicates that your Mountaineer detected that air-fuel mixture reading as the exhaust gas exits the catalytic converter is too rich. (too much fuel for the amount of fuel … Read more