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Trunk latch how do I fix the trunk latch on a lexus rx300, already tried wd40

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OK This is tricky but doable. I just did mine 2 weeks ago.I know a LEXUS tech who told me how he does them without removing the panels.
IF you are very lucky you can spray WD or similar from the underside unto the ends of the latch where it rocks on its axle.The Axle itself will have rusted and is now binding in its plastic frame and against the latch handle itself. If you have VERY fine flat long bladed screwdriver you need to gently wedge it in at the edges of the latch and twist to expand the axle frame away1mm from the latch handle .Scrape the blade against the axle to scratch of the rust. It will fall out as it crumbles. This may take a few minutes and you must be patient.The back side of a fine hack saw blade might work as well.
I removed my entire latch but the trim panel extending above the license plate must be removed to do so. If this is required you need to pop the upholstery trim panels off inside the back door and remove 6 or more acorn nuts for access. Caution!!! generally when the latch has rusted the acorn nuts have too. Two of them are on studs embedded into the outer edge outside plastic trim housing and two center ones by the latch are on floating studs drilled through the trim. The ones near the key hole lock also broke but are not embedded in plastic If they are rusted and you crank them even with 1/4 inch drive you will strip them and crack the inside of the trim housing. New part $200 plus. New latch is $60 plus. Be cautious. I cracked the bolts out of underside of my outer trim but was able to mend it with some enginuity , luckily

Posted on Sep 11, 2009

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You can purchase replacement hatch lift parts either online or get it from Toyota or Lexus dealer.

Posted on Aug 18, 2009

  • ce5288 Aug 18, 2009

    WD40 will not fix the problem.



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