My 1997 Maxima started vibration 2 days ago compression was zero at cylinder number 3 so there was ticking noise and just vibration went to the mechanic he kept revving the engine to 7 k rpm ! Until became worse now I need another engine because my car have rod knock ist his fault or it was going to happen soon anyway? I asked him why you did rev it that hard he said I was trying to fix it and figure out what's the exact problem!!!!!!! Any idea ?

190k mile on the car unknown maintenance history engine was great week ago
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