P0325 is a powertrain OBDII trouble password that has actually the same meaning for the Mercury Villager as it would any type of other vehicle. By definition, it method that the vehicles ECM/PCM isn’t obtaining the ideal signal to or from the hit sensor. Clearing this code generally requires a new knock sensor or correcting a short or rest in the wiring harness.

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Modern internal combustion engines utilize the punch sensor to enable for aggressive timing. If the timing has gained too wild it’ll cause the engine come knock. This sensor will certainly let the computer system know to dial ago the timing.

P0325 Symptoms: Mercury Villager

The symptoms linked with P0325 space going to vary by engine and model year. Without a signal native the hit sensor, countless engines will certainly curve the timing and also power output to make sure that the engine is not knocking. The only other symptom that you’ll probably notice is the company engine quickly light itself.


P0325 Causes: Mercury Villager

Most of the time, the fix for P0325 in the Villager (or most any type of vehicle) is going to come from instead of the punch sensor or repairing the wiring harness.

Wiring Harness

P0325 is telling you that the ECM/PCM is not getting the suitable signal indigenous the knock sensor. When this happens the computer will run as despite it is acquiring no signal indigenous the sensor in ~ all. A good place to start would be to examine the wiring top from the sensor and see if any type of of it has actually been damaged or frayed. Most of them bolt right into the block, which makes accessing them difficult. Your proximity to the engine block way that castle are often susceptible to damage.

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Knock Sensor

If you uncover that the wiring harness is ok, and the password is tho persistently registering, that is time to check and/or replace the hit sensor. There room guides the end there on how to check a knock sensor, yet they are an extremely affordable. Castle can also take a little digging to gain to, which makes replacing that the means to go.

How to test a knock Sensor (It quiet Runs) Knock Sensor Mercury Villager (AMAZON)


The most daunting part in addressing your Villager’s engine to clear the P0325 password is going to it is in finding room come maneuver and also inspect the hit Sensor and also wiring harness. This have the right to be tedious work. Good luck!