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.
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: diagram of changing a 2000 model nissan xterra
I am assuming you have the 3.3 litter v-6?
I just did my own so I can offer you a few words of personal advice. Make sure, before you remove the crank shaft pulley, that the engine is at TDC. There is a pointer on the lower timing cover that should line up with the mark that is furthest to the left on the crank pulley (looking at it from the front of the truck). If you are replacing the timing belt for maintenance, not failure, make several marks on the cam pullies to the rear of the timing cover with a paint pen before removing the old belt and make sure that everything stays aligned to those marks upon reassembly. If this method is not an option, use the timing dimples on the back of the upper timing cover only as reference points for the cam pulleis (this is where I ran in to trouble). What is most important is that there are exactly 40 teeth on the belt between the marks on the cam pullies and 43 teeth between the right cam pully mark (right cam as you look at the engine from the front of the truck) and the mark on the crank pully. I used a Goodyear Belt that actually had marks that indicated the 40 and 43 tooth increments. Make sure you have the belt on the right directon, arrows to the front of the truck. Again it is very important that the crank pully remain at TDC (top dead center) during the entire process. Good luck, hope you get it the first time and not the second like me!!
SOURCE: I am replacing the distributor on a 2000 nissan
Pull # 1 spark plug, install compression gauge or somehow block hole and jog engine until you feel or record compression, then line up TDC marks on crank pulley. Now when you drop distributor in, rotor should line up with # 1 spark plug wire tab under cap. Make sure you have all ignition spark disconnected, one way or another. If you haven't pulled other distributor yet, it should be easier, just mark housing for reference, jog until rotor is at # 1 tab, remove old one and re-install new in same position.
SOURCE: knock sensor 2000 nissan xterra V6, location of
Hello the sensor is located under your intake manifold you will need to remove the intake manifold to gain access to it here is photos of what and where your looking for this
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