Question about Lexus RX 300

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1999 Lexus RX300 oil leak left side of engine (drivers side)

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  • drg2008 Mar 11, 2009

    thank you

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The main seals are a good bet. Not as likely is the distributor seal. Look on top of the transmission case for puddled oil and rub your finger on the botom of the distributor, especially where it meets the engine. Either may indicate a leaking distributor seal (which is a lot easier to replace).

If it is the main seal(s) I had pretty good luck with a product called AT205 Re-Seal to refresh my seals on a 1990 Camry. If it is going to work you should notice an improvement in 200-300 miles.

Posted on Mar 11, 2009

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This could be 3 things.  The filter, the seal or the oil pan.  Before you rate, let me help you first.  Have you had the oil filter or oil changed shortly before it started this? And how long has this been going on?

Posted on Mar 11, 2009

  • Shadow1989 Mar 11, 2009

    Basically if it is the filter, drain the oil.  Take the filter off and buy a new one.  Make sure the surface that the filter touches on the engine is clean.  Make sure you removed the old filter o-ring or that it is still on the old filter.  Lubricate the new filter middle threads and the rubber oring.  Put the oil filter on hand tight and give it another 1/8 to 1/4 turn.  Put new oil back in your motor.  If it is the pan, drain the oil, and take the oil pan off.  Buy a new oil pan gasket.  Clean the engine and the oil pan, removing any leftover gasket.  apply a thin bead of RTV tot eh oil pan lip and apply the gasket.  Put the oil pan back on the car and align.  Put the bolts back in, in a criss-cross pattern when tightening.  DO NOT OVERTIGHTEN!  If it is the seal, well, that is best left to a professional as this involves taking most of the bottom half of the engine apart.  You can tell approx where the oil is leaking with a flashlight and look under the car.

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