LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

98 transmission pan drop

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Old 05-06-23, 01:37 PM
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Sherl
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Default 98 transmission pan drop

The lata owner did replacement filter at 182 and now I'm trying to drop the pan but seems they used a black rtv stuff and I don't know what it is. Anybody have tips and how to remove them?

Back story, when I did 8qt drain and refill through return line my transmission worked great for three or so days but now it back to where it was (I need to rev past 3k RPM for my gear to shift from N to D, rest all gears smoothly once it's in motion which indicates a clogged transmission filter I guess).

Here is the pic of black rtv excess that's visible.
https://imgur.com/a/GwehbGx

I'm thinking should I just do a return line drain and refill again and install transmission inline filter to catch the small particles instead of dropping the pan. Thoughts? My understanding is the fluid gets filtered before it returns back to transmission with this method so I could save myself the hassle of damaging the pan
Old 05-06-23, 01:38 PM
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Sherl
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https://imgur.com/a/GwehbGx
Old 05-06-23, 08:44 PM
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paulo57509
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Pan removal is pretty easy IF you have the correct tool. Once the pan starts to give way, it should come off the rest of the way with a tug. Use caution that the mating surface on the transmission case isn't gouged.

Amazon Amazon

Most replacement filter kits come with a gasket if you don't want to deal with FIPG.




Last edited by paulo57509; 05-06-23 at 08:48 PM.
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Old 05-06-23, 10:34 PM
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Sherl
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Originally Posted by paulo57509
Pan removal is pretty easy IF you have the correct tool. Once the pan starts to give way, it should come off the rest of the way with a tug. Use caution that the mating surface on the transmission case isn't gouged.

https://www.amazon.com/s?k=gasket+se...f=nb_sb_noss_2

Most replacement filter kits come with a gasket if you don't want to deal with FIPG.


there isnt really enough space for a blade let alone a pry tool. I called a mobile mechanic who quoted me $150 for dropping the pan, cleaning and reinstalling it but thank you for the tool recommendation.
Old 05-07-23, 06:31 PM
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clipster
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Here is my pan removal tool which I inherited from my grandfather:



I've used this several times without any pan damage. You might be able to make / rig something like this with a hack saw blade
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