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  1. C

    Desperately in need of help with a P0178 code

    So I needed to chase down an oil leak on my 2003 Z71 Tahoe with the 5.3 Flex engine... I used some foaming degreaser and a hose and was able to isolate the oil leak... unfortunately I got a little too overzealous with the hose because the next day I get a knock sensor code... apparently I...
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