What does the knock sensor do?
07-02-2010, 07:44 PM
#2
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Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
It tell the PCM when there is a knock, or preignition, and retards the timing. It will not keep the engine from turning over.
07-02-2010, 07:48 PM
#3
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Year: 1994
Model: Cherokee
Engine: 4.0 H.O. K&N, Borla headers, custom down pipe, magnaflow hi-flo cat, flowmaster to turn down tip
in mine it does nothing, i took it out and drove around with it....nothing! no difference. i would say it is the crankshaft position sensor, they go out for no reason at all
07-04-2010, 06:54 PM
#4
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Year: 1993
Model: Cherokee
Engine: I6
Ok, how about this, does the knock sensor go all the way through the block so if it were out there would be basically a big hole in it? If that's the case, could it cause a rough idle because air is escaping the hole?
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