There is an extremely loud, violant knock that apeared from thin air Please help
Roughly 575 miles ago i had my head gasket replaced as well as a valve job. I was told to take it easy for the first 500, which i did. Today was the first day i drove above 65mph, i hit 80 /85, no problem. A few hours later i got back on the freeway doing 80ish and when i exited there was a intense shutter, i thought it was going to stall the whole way home which is only a few blocks. Along with the shuttering there was the loudest engine knock i've ever heard. I looked under the hood and under the carriage, aside from the block which was vibrating loudly I saw nothing. no leaks no loose hoses nothing. I'm not sure if the engine was moving more than it usually does well i would say 90% sure. Keep in mind I was trippin. But the sound is unmistakeable, I want to know if theres anyway that the mechanic may have made a mistake or is it just my unbelievably unlucky misfortune
He could have and something let loose in the motor. Run it back to him to diagnose the issue, Most good mechanics will stand behind their work. Hard for me to diagnose on a forum.
Chances are-it"s just bad luck,on your part.Sounds to me,like you lost a rod bearing,which,didnt happen because of the top-end rebuild..
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