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2000 LS400 Common Problems

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Old Apr 30, 2024 | 01:51 PM
  #16  
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Originally Posted by CLLEXUSS
Kind of surprised to see the starter go out at 79K miles. These fairly durable starters that normally last a lot longer than that. With transmissions in some cases an oem or equivalent transmission "filter" can last reasonably up to 100K miles basically outlasting the fluid. Not saying that's a general rule or anything of course but really just by simply draining the pan periodically and rejuvenating the fluid makes a difference. Best case scenario you change the filter frequently, but if not, try to keep the fluid reasonably good condition. It's easy to drain and fill just measure what you took out and put the same amount back in after the drain.
my starter went at 108k per the first owner who had it done on my 99' in June 2008 at the Lexus dealer. He was an older guy though so probably did a lot of short trips in town.
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Old Apr 30, 2024 | 02:19 PM
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if you have the standard pioneer audio system the LCD panel is likely complete hieroglyphics by now (assuming any of the pixels are still active lol) and the new display part# is CWM5077 from pioneer

other than standard valve cover leaks it's also not uncommon for the little plastic extrusions on the intake to be cracked or broken off completely as they become brittle over time



edit: oh yes and make sure you clean the 'air mix path' located on top of the throttle body as these all eventually become caked with dirt and cause rough/low idle and hesitation when accelerating from a stop

Last edited by Stroock639; Apr 30, 2024 at 02:25 PM.
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Old May 2, 2024 | 12:10 PM
  #18  
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like clockwork someone on the LS 400 subreddit just made a post yesterday about their LS having a P0171 code with this piece broken:



like 5 years ago i ordered a replacement piece since mine was broken here as well, i'm glad i could still find a new one then because now it seems unavailable... but anyway it's part# 17875-50161 for that piece
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Old May 2, 2024 | 02:51 PM
  #19  
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I'll add another tip to the transmission dump and fill process. So the way this is designed for the dump and fill process to keep in mind is the bolt metal is softer metal than the steel threads metal that it threads into. So the bolt is designed to fail before the pan does, and will certainly fail sometimes exactly when you don't want it to when you notice it's not snugging down anymore. It's a 14mm socket size. I would consider replacing the bolt after a fluid drain just to make sure you keep out of trouble, they're like 5 dollars or so, well worth it imo because if a bolt strips out there is an outside chance that you will have to chase the threads and possibly pull the pan and clean them out. So new bolts highly recommended.
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Old May 2, 2024 | 03:24 PM
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I utterly and completely stripped the bolt in mine. Fully cross threaded, because once I realized what I had done, I just full sent it in + loctite and prayed it would make it to the shop.

No damage, I did it just about the worst you could possibly do and the pan is fine.
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