Knocking when driving gets louded the faster u go.
RPM related? Vehicle speed related? Location?
Check engine light on?
Oil level correct?
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+1
Additionally, giving us some info as to the possible area of the car from which the noise is emanating might help us to give some good guesses.
From under the hood?
Underneath the vehicle?
Left side?
Right side?
Rear of the vehicle?
Knock, Knock…
Who’s there?
Rod
Rod who?
The Rod getting ready to exit the block, that’s who!
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Could be the flux capacitor. They start making noise the closer you get to 88 MPH.
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