There are no symptoms. 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: What_does_a_bad_knock_sensor_to_to_the_engine_if_not_replced
The knock sensor is under the intake manifold, which has to be removed. This should be left to an experienced mechanic.
1999 - 2002.
the knock sensor is under intake, must remove intake and it is under two coolant lines.
I payed $117.00 at auto zone
Because there is nothing wrong with it. This is a common code that can relate to a number of components. The knock sensor itself is rarely the problem.
No. The knock sensor alerts you to the fact that there is an engine vibration that needs attention. Mine has been awaiting replacement for six months.
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Again, not difficult. But, one of those jobs when you should have a repair manual handy. The knock sensor lies beneath the intake manifold. Components that you would not think about must be removed and the torque sequences for reassembly are very specific.
The knock sensor is located below the intake manifold