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Thread: read and help

  1. #1

    Default read and help

    hey guys the other day i went to autozone and read a code it said engine knock sensor #2 or something and i just cleared it and another the service engine soon came on tonight and ill go see if its the same one in the morning but for a 5.3L chevy suburban it is 47 dollars or so for the new sensor any one know it it is hard to change and where it could be at ? please help thanks

  2. #2


    sorry i not had to service this part yet. get a shop book and look it up and see if you can do it....mike
    Michael Collins
    1993 4X4 Suburban
    many other toys as well

  3. #3


    You'll rest easy if you reality test your sensor...
    Have your truck's engine running with a timing light strobing the marks. Bang on the engine with something heavy to make a noise to fool the sensor into thinking that it heard a pre-iginition knock. If all goes well, you'll see the timing retard briefly.
    Are we having fun, yet?

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