Question about 2000 Nissan Xterra

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I need to replace a knock sensor on my 2000 nissan xterrra. I don't have a clue where it is or if it's easy to fix.

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A knock sensor is usually on the mid way down on the side of the block from the top .It wil have a one wire connector on the sensor.A round looking item screwed into the block. This is what the v/8's used to use to compensate for the compression knock,and i think this adjusted the ignition timing by the useage of the computer.

Posted on Sep 17, 2010

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Bypassing (hotwiring) the knock sensor will remove a signal the computer needs to operate. Unexpected results for sure , possible damage to the computer may result. Replacing the knock sensor is the best way.

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This is easy to replace just make sure to get a good sensor . use nissan or delphi as nissan knock sensors do not last long if they are after market sensors, but easy to replace on this nissan, the location of the sensor ison the right side of the engine. the best way to see would be from under the car. if you look at the right side of the engine or let is say the side facing the rear of the car, look on the block and there it is, use the new one as a guide to locate the old one.

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Knock engine sensor light on truck is hesitating/


Did they replace the knock sensor?Check the wire going to the sensor(knock).Look for a bare place hiting up against something ,grounding it out.Make sure the plug to knock sensor is good.And make sure it is making a good connection,Knock sensors also ground a part of the computer to feed back imformation.This connection is a must,the truck will not perform at all,stumble,miss,and carry on.Sometimes even backfire.If they did not replace the knock sensor,replace it with high quality sensor from NAPA,or oem from dealer.This sensor has to be made perfect,no room for inperfection.The knock sensor is easy to replace,they just screw in a hole in the block.When removing the sensors,nothing will come out such as oil or water,this is a dry threaded hole.It is a bell shaped sensor.If you don`t know which sensor is bad,purchase one.replace one,and if there is no change,replace the other side with the old sensor you just took out,it will be a good one.I hope this helps you,Let us know if it does.

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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.

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