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98- LS400 Trans wont reverse

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Old 09-05-18, 11:16 PM
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Nigel1995
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Default 98- LS400 Trans wont reverse

I have a 1998 LS400. Car runs and drive okay except I have one problem. Sometimes it won’t go into reverse unless the car is warm. It drives me insane sometimes. Did anyone else have this problem ?

Last edited by RA40; 09-06-18 at 01:08 PM. Reason: Proper title
Old 09-05-18, 11:22 PM
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spuds
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1998 LS400 is a very poor thread title.
Old 09-06-18, 12:05 AM
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AlaskanLS
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Originally Posted by Nigel1995
I have a 1998 LS400. Car runs and drive okay except I have one problem. Sometimes it won’t go into reverse unless the car is warm. It drives me insane sometimes. Did anyone else have this problem ?
Flush your transmission oil and use fresh Toyota ATF. I had the same problem with 99 Camry.
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Old 09-06-18, 02:00 AM
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Nigel1995
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Originally Posted by AlaskanLS
Flush your transmission oil and use fresh Toyota ATF. I had the same problem with 99 Camry.
thank you man, ima get to that this weekend.
Old 10-19-18, 06:09 PM
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Nigel1995
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after the fluid change did the problem ever come back ?
Old 10-19-18, 06:58 PM
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Fit1too
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Have you checked your ATF?

Proper way to check ATF:
1) Warm the car up and/or drive for 15 to 20 miles (with outside temps above 70 degrees or so, if not drive longer/farther)
2) Stop car, shift through each gear and linger in each for 3 seconds or so i.e. 4 wait, 3 wait, 2 wait, L wait, then 2 wait etc., 3, 4, D, N, R, and then park
3) Apply park brake
4) Wait for about 30 seconds
5) Remove dipstick and wipe clean
6) Reinsert dipstick, remove and note fluid level
7) If fluid is low, add small amounts and recheck until proper level is achieved
Old 10-19-18, 08:15 PM
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dicer
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Any codes set?
Old 10-22-23, 11:21 PM
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saheeranas
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Originally Posted by Nigel1995
after the fluid change did the problem ever come back ?
I did the same, changed the whole oil with new Toyota ATF but even after the issue continues. won’t go into reverse unless the car is warm.
Old 11-19-23, 06:28 PM
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ellis400
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I had this issue, tried a bunch of stuff. ended up swapping it out with a used transmission
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