SOURCE: nissan xterra knock sensor
It's the valley of the engine underneath the intake manifold. It's about an $800 job because the top of the engine has to come off. However, unless you have a supercharged xterra it shouldn't effect performance. Also, the knock sensor will not trip the check engine light, as it does not indicate a primary problem, so if your light is on you should have another code that should be fixed first.
SOURCE: knock sensor
You have to take the entire intake manifold off upper and lower. you will find it on the main block after you take the lower manifold off.
SOURCE: DTC - PO340, PO325
My Nissan micro 2004 model just stopped in the middle of the road one day then the engine management light came on, anyway took it to my local garage TWK Thomas who said it was a cam shaft sensor problem. OK so sensor was put on, engine management light went off for two days only. So went back to the garage they said that another sensor should be fitted on the opposite side. And then the problem should be rectified, but i had given the £160 for this problem to be fixed the first time. I decided it was time to take it to another garage Nis Tec they put it on the computer and a code po340 came up would this mean another sensor or the cam chain has stretched please help. ...claire
SOURCE: Does my 2001 3.3L V6 EFI Nissan Xterra have a non
It's has a timing belt, also it's an interference engine, if belt goes bad it will bent valve's .
SOURCE: Diagram available for 01 Nissan Xterra Knock Sensor location?
V6 3.3L The sensor is located underneath the air intake manifold on top
of the engine block. This should take an experienced mechanic about 3-4
hours to replace.
Fig. Engine compartment component locations
Hope this help (remember rated this free help) Good luck.
Fig. 5: Removing the coolant temperature sensor
Hope helps (remember to rate this answer).
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