Sitting right on top of the engine.
There are two.
1999-2002 Villager or Nissan Quest.
The knock sensor is in the engine V under the intake manifolds and coolant crossover pipe. As it requires considerable disassembly and an expensive new gasket set to reach it, I suggest you make very sure there is something wrong with it first. You will have to remove the upper and lower intake manifolds and coolant crossover pipe assembly to reach it. Just because you are receiving a trouble code for it does not mean there is anything wrong with it. This sensor shares a circuit with other components that often will set a "ghost" trouble code.
Plug in a scan tool.
1999 - 2002.
If it is defective it will need to be replaced.
No, the speedometer is driven electrically from the PCM.
By the fusebox under the dash.
16 inch on my 2002 sport (aluminum alloy wheels)
To change the thermostat on a 2002 Mercury villager, pull the hose away. If the bolts do not come off, wiggle the fitting to expose the thermostat to be able to change it.
The knock sensor is in the engine V under the intake manifolds and coolant crossover pipe. As it requires considerable disassembly and an expensive new gasket set to reach it, I suggest you make very sure there is something wrong with it first. You will have to remove the upper and lower intake manifolds and coolant crossover pipe assembly to reach it. Just because you are receiving a trouble code for it does not mean there is anything wrong with it. This sensor shares a circuit with other components that often will set a "ghost" trouble code.
The knock sensor is in the engine V under the intake manifolds and coolant crossover pipe. As it requires considerable disassembly and an expensive new gasket set to reach it, I suggest you make very sure there is something wrong with it first. You will have to remove the upper and lower intake manifolds and coolant crossover pipe assembly to reach it. Just because you are receiving a trouble code for it does not mean there is anything wrong with it. This sensor shares a circuit with other components that often will set a "ghost" trouble code.Read more: How_do_you_replace_the_knock_sensor_in_a_1996_mercury_villager_van