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

Replacing suction throttling valve or evaporative pressure valve

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Old 05-03-17, 06:41 PM
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mmaxie
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Default Replacing suction throttling valve or evaporative pressure valve

Need replacement or gaskets and o-rings to rebuild.
Old 05-03-17, 06:56 PM
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mmaxie
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Where can I get replacements for the O-Rings, Diaphragm, and and gasket (I didn't remove the part, so I don't if there are any gaskets).

Here are some pictures:


The Piston with diaphram.
No Visible holes.
No Visible holes.
Michael
Atlanta, GA
Old 05-03-17, 10:07 PM
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dicer
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Its likely one of those never find parts that some outfit should be making again. Have you tried the dealer?
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Old 05-04-17, 07:09 AM
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billydpowe
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part number is 88503 50170 pressure regulator shows under 100$ from the dealer
same part for all ls400's

Last edited by billydpowe; 05-04-17 at 07:27 AM.
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Old 05-04-17, 07:39 AM
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mmaxie
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Originally Posted by dicer
Its likely one of those never find parts that some outfit should be making again. Have you tried the dealer?
Dealer we gladly sell me one for $800.00.
Old 05-04-17, 07:55 AM
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mmaxie
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Originally Posted by billydpowe
part number is 88503 50170 pressure regulator shows under 100$ from the dealer
same part for all ls400's
The picture of this part looks different. That is not a problem? It will still work?

Which model year should I use?

Thanks,
Old 05-04-17, 09:40 AM
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billydpowe
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man, you dont ever post what you are driving? how can I know... my references all said LS400 "ALL" that is what I went by..
put yours together and give us a photo of it ( several) and I'll try to go further:: 8850350170 fits (10/94-09/2000) LS400

if yours is 90-09/94 this is wrong..
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Old 05-04-17, 11:18 AM
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Originally Posted by billydpowe
man, you dont ever post what you are driving? how can I know... my references all said LS400 "ALL" that is what I went by..
put yours together and give us a photo of it ( several) and I'll try to go further:: 8850350170 fits (10/94-09/2000) LS400

if yours is 90-09/94 this is wrong..
My apologies. I'm not off to a good start on Club Lexus. My car is a 1992 SC300. So, this thread is in the wrong forum. I'm going to start over in the correct forum. My apologies again for creating such confusion.
Old 05-04-17, 11:49 AM
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billydpowe
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Originally Posted by mmaxie
My apologies. I'm not off to a good start on Club Lexus. My car is a 1992 SC300. So, this thread is in the wrong forum. I'm going to start over in the correct forum. My apologies again for creating such confusion.
everybody had to start somewhere...... keep plugging
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