Engines is knocking on passinger side under the intake manifold in the back cylinder i believe what is wrong?

1992 TOYOTA PICKUP
300,000 MILES
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DRIBBLER1
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when you crank it up it starts knocking hard and loud sounds like there is a bolt on top the cylinder and its bouncing of the head?
Nov 7, 2011 at 9:36 AM
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WRENCHTECH
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It's probably something like a bad rod bearing but it really doesn't matter what it is specifically. If it's making that much noise and it's coming from internal parts of the engine, then it's something terminal for the engine and you'll be looking for a new motor to resolve it.
Nov 7, 2011 at 11:05 AM