What is causing this knocking noist from the engin as you press the gas paddle on 1997 Lexus LX450

There is a knocking or tapping noise comes from the engin as you start the engin and noises goes higher while you drive.And I feel it's low in power. I want to know if it is repairable

Asked by for the 1997 Lexus LX450
It could be engine related but could it be an exhaust leak, pinging due to bad gasoline? It is best to get this checked out as soon as possible as more damage can occur if not attended too. These are usually a very strong engine.
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Sounds like engine trouble to me. I assume you've checked the oil level and condition and thery're good.
Get to a Lexus or Toyota specialist for diagnosis.
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