Expected life of a GS400 Engine and Transmission
#16
Pole Position
Join Date: Jun 2009
Location: Oklahoma
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I can see the engine in the 300 and the 400 lasting any where from 300k to the apocalypse, they are extremely reliable, but the transmission... not so much. I really dont like the tranny in my gs and my dad's LX dropped a tranny before the warranty went out, phew, but lexus seems to have gotten their stuff togther now. Except for the whole 8 gears is way too many in an ISF thing but thats another thread
#17
Lead Lap
Join Date: Mar 2004
Location: Greenville + Orangeburg, South Carolina
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I drive the dog snot out of mine and I got 230kmiles before it dropped a valve and i had to replace it, 3 months after putting in a new tranny!! its sucks! i think i just have bad luck but these cars will last you as long as you take good care of them!!
#18
if maintained properly, you should easily get 250-300k out of it before a rebuild is required, if not more.
Transmission, if you install a cooler it will extend the life but the a650(e) transmissions are usually good for 200k or so before needing a rebuild, again with proper maintenance they will last longer
Transmission, if you install a cooler it will extend the life but the a650(e) transmissions are usually good for 200k or so before needing a rebuild, again with proper maintenance they will last longer
#20
Lexus Fanatic
iTrader: (1)
I rebuild a bunch of these for performance purposes. When I tear down a stock engine and transmission for cores to use, usually most at 150k miles range. The cylinder walls still have crosshatches, the engine bearings are pretty much as smooth as the day they left the factory, and everything is still in spec. I don't see why these things can't easily go 2-3x more that amount of miles without even breaking a sweat. In the transmission, the latest one I tore down had 186k miles on it and the clutch packs still had the original print readable! I'm talking about the part numbers they print on the face of the clutches, yes on the part of the clutches wearing and making contact. After 186k miles, the numbers are still readable and this transmission was not very well taken care of either! My guess is that a car that has had on time maintenance on everything will easily last 300k+ and probably 500k and beyond.
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