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Adin3
Adin3, Nissan Mechanic
Category: Nissan
Satisfied Customers: 3423
Experience:  Autozone Manager 3 years, mechanic 10 years
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Nissan Pathfinder: replacing..the Knock sensor on the engine block

Customer Question

I am replacing the Nissan Pathfinder (1999 3.3) Knock Sensor, but I cannot seem to locate the Knock sensor on the engine block, could you send me a picture? Or point me to the correct loction on the engine block.
Submitted: 8 years ago.
Category: Nissan
Expert:  Adin3 replied 8 years ago.

Hello and thank you for choosing Just Answer.

3.3L Engine

 

 

 

Customer: replied 8 years ago.
Reply to Adin3's Post: Adin, I am still cannot locate the Knock sensor, is it on the engine block? Or under the intake manifold.
Expert:  Adin3 replied 8 years ago.

It's actually very hard to even see. To replace the sensor the intake manifold has to be removed. Once you remove the intake manifold you will be able to see it much better. The sensor is located under the intake manifold (which you must remove), left side (driver's side) between the last two cylinders on that side.

Customer: replied 8 years ago.
Reply to Adin3's Post: Adin, I have removed the intake manifold and I still don't see the knock sensor. What should I be looking for to find it?
Expert:  Adin3 replied 8 years ago.

Did you take the upper and lower intake manifold piece off?

Did you look on the left side between the two cylinders? (Cylinders 4 and 6)

3engines Firing order: 1-2-3-4-5-6 Distributor rotation: Counterclockwise

Also did you look at the pic of the sensor to know what your looking for.

Customer: replied 8 years ago.

Can you take a look at these picture? and point me to the correct loction on the Nissan pathfinder 1999

graphicgraphic

 

 

Expert:  Adin3 replied 8 years ago.

You only took of the top part low intake manifold also has to come out. This is the actual location of the sensor.

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