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  1. #1

    Default Knocking noise need help

    I have a 96 silverado with the 5.7 When I start it up it has a knocking sound that is fairly loud coming from the motor. The oil level is good. The check engine light is on due to an o2 sensor would this have anything to do with it? What could it be?

  2. #2
    Legend unplugged's Avatar
    Join Date
    Sep 2006
    High Deserts of SoCal


    Does the knock go away after it warms up?
    There is no way to happiness....happiness is the way.:yipi:  _vXMYypuKMJFw671uF2ZPhjez_j-atRmcjM2zQKpQi1JSsB75/burb1.JPG
    High Desert SoCal
    93 K1500 burb (personal) 350 AT 3" Lift 250K+
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    Looking for a 1990's Miata for an engine swap

  3. #3

  4. #4


    im guessing its the piston slap problem

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