Question about 2000 Toyota Tundra

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I have a knock in my 2000 Toyota Tundra 4.7 V8 engine. It sounds like a rod knocing. However, I have been told that it is not a rod. Any ideas?

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If you have a knock, then you have a bad rod bearing. If you have a tick, then you have a bad lifter or an out of adjustment rocker arm. One way to see what clyinder it is, is to have the engine warm and running. Then one by one remove a plug wire from a cylinder. Replace the wire and go to the next one and you should be able to hear a difference in the knocking. This will tell you which rod bearing is the issue. The best way is to take off the oil pan and give each rod cap a tap with a hammer. If you have a bad rod, it will have a hollow sound and the good ones will sound solid. I hope this helps.

Posted on Apr 10, 2011

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