Question about 1995 Lexus ES 300

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Knocking sound from the motor 1995 300 se lexus

I think the oil pump may have went out! if it was driven from work about 5 miles could it cause futher damage? how can I check this out? should I just put a new oil pump on and then seee if the knocking goes away or can it be checked for futher damage before putting oil pump on?

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If you had 0 oil pressure driving that 5 miles, and it was nocking, chances are it is not going to go away, the damage has already been done. the only recourse here is total rebuild or replacement of engine or the very least rods and main bearings if it did not scar the crank, you might get away with new bearings. only way to know for sure is to drop pan, and wiggle rod cap and see how bad it is. , you will know when you find the bad one it will be looser than the rest. as far as the mains are concerned you have to take each one off to see if there scared. i guess the bottom line here is what do you want to spend, either way it not cheap.

Posted on Jan 17, 2009


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I think oil pump went out, is ti inside the oil pan?

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Make sure there is not a problem with what drives the pump either. It could be gears etc.

I'm not sure about yours, but on many vehicles, the oil pump is driven by the distributor shaft.

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