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

92 ls400 transmission issues now!

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Old 04-12-14, 05:10 PM
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clos619
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Default 92 ls400 transmission issues now!

ok so found out the tps sensor was not the issue it was a broken wire on the tps plug. solved that problem, now im having transmission issues. when shifting from park to drive the car jerks like crazy, it drives then sometimes the car will feel like its in neutral. if anyone has had these issues please help any input is welcomed.
Old 04-12-14, 05:17 PM
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python
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check the mounts
Old 04-12-14, 05:32 PM
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clos619
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i will check them. also the tranny fluid is dark i just changed the filter 2weeks ago and for the fluid to be dark is kinda scary. i was thinking the tranny is bad. if i dont have to change it idont want to. i added lucas trans fix during the fluid change because its an older car, could that of damaged anything?
Old 04-12-14, 05:55 PM
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RNH524
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Mine does the exact same thing.. If you find out its something besides the mounts let me know, I haven't had a chance to check mine out yet... Lucas won't hurt your trans at all. I know some people that use lucas in their new vehicles just to make it last longer.
Old 04-12-14, 06:08 PM
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clos619
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i bought the car last month drove fine check engine light was on, guy said it was tps, gave me a new tps, found out it was just a broken wire, fixed that now its acting up. sometimes it bogs down on the freeway, then idle starts jumping i have no idea whats going on
Old 04-12-14, 06:27 PM
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sha4000
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Originally Posted by clos619
i will check them. also the tranny fluid is dark i just changed the filter 2weeks ago and for the fluid to be dark is kinda scary. i was thinking the tranny is bad. if i dont have to change it idont want to. i added lucas trans fix during the fluid change because its an older car, could that of damaged anything?
I would drain this out asap before it creates more problems.
Old 04-13-14, 06:09 AM
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python
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I would pull the codes...disconnect the battery for 10 minutes to clear the ecu..then drive it. I had a knock sensor code and my transmission shifted harsh..thought my tranny was going out..weird but true
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