Mechanics

KNOCK SENSOR

1997 Nissan Maxima

Engine Performance problem
1997 Nissan Maxima 6 cyl Front Wheel Drive Automatic 120000 miles

What does a knock sensor do? Could it help me get better gas mileage? How much are they?
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KittyLu
October 22, 2008.



What does a knock sensor do it retard and advance your timing it depends on the engine loads. Will it help your gas mileage let say if your timing is stuck retarted or advance then yes, they internal failure they crack cause it set right on top of the intake manifold, how much will it depend aftermarket 0 to 75 dollars, dealer $75 to 120.

Tiny
Nissan1
Oct 24, 2008.