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: 2000 Nissan Xterra Service Engine soon indicator is always on
The knock sensor is not a huge deal to replace and will not turn on the light. It should be dont though.
The crankshaft sensor is located directly between the engine and transmission. It is dead center at the bottom.
I had a problem on my Nissan Xterra 2000. Symptons sound similar. In my case, it ran fine for a while and then suddenly the engine starts to stumble and lose output. At one point it did not even have enough HP to move. Irregular idling too. Thought it was water in my fuel. Bought water remover from the store and added to gas tank. Problem did not go away. Instead, "Service Engine Soon" light came on. Had to have it towed to the dealer as there was no way the engine could keep up with traffic. Dealer replaced the "Crank Position Sensor" today. Parts $33.00, Labor: $300 (about 3 hrs worth of work). Seems to work fine now but I will wait and see. Dealer also stated that Distributor bearing appears to be noisy and will need to be replaced sooner or later. I will wait for it to go before I fix that.
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: sensor locations
Here's the diagnostic procedure for DTC code 0340, directly from the service manual:
59 views
Usually answered in minutes!
×