P0325 is a powertrain OBDII trouble code that has actually the same definition for the Mercury Villager together it would any type of other vehicle. By definition, it way that the vehicles ECM/PCM isn’t acquiring the proper signal come or indigenous the punch sensor. Clearing this code commonly requires a new knock sensor or correcting a short or rest in the wiring harness.

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Modern internal burning engines use the hit sensor to permit for wild timing. If the timing has gained too aggressive it’ll cause the engine come knock. This sensor will let the computer know come dial ago the timing.

P0325 Symptoms: Mercury Villager

The symptoms associated with P0325 room going to vary by engine and model year. Without a signal native the punch sensor, numerous engines will curve the timing and also power calculation to make sure that the engine is no knocking. The only other symptom the you’ll probably notification is the business engine soon light itself.


P0325 Causes: Mercury Villager

Most that the time, the resolve for P0325 in the Villager (or most any vehicle) is going to come from replacing the hit sensor or repairing the wiring harness.

Wiring Harness

P0325 is telling you that the ECM/PCM is not getting the proper signal native the knock sensor. When this happens the computer will operate as though it is gaining no signal native the sensor in ~ all. A an excellent place to start would be to inspect the wiring leading from the sensor and also see if any of it has been damaged or frayed. Most of castle bolt right right into the block, which makes accessing castle difficult. Their proximity come the engine block method that they are often susceptible to damage.

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Knock Sensor

If you uncover that the wiring harness is ok, and also the code is tho persistently registering, the is time to test and/or change the hit sensor. There are guides out there on how to check a knock sensor, yet they are an extremely affordable. Castle can also take a little digging to obtain to, which provides replacing that the way to go.

How to test a punch Sensor (It tho Runs) Knock Sensor Mercury Villager (AMAZON)


The most daunting part in resolving your Villager’s engine to clear the P0325 password is going to it is in finding room to maneuver and inspect the knock Sensor and wiring harness. This can be tedious work. An excellent luck!