LS - 4th Gen (2007-2017) Discussion topics related to the current flagship models LS460, LS460L and LS600H

Downshift rough when slowing

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Old 02-03-14, 07:02 PM
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thegov3
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Default Downshift rough when slowing

Anyone else had a slight shutter or jerking feeling in their LS, sort of like the rotors are warped, when they slow to a stop from 40+ MPH? I just cannot make the car stop smoothly no matter the amount of brake pressure I apply.

I can 100% eliminated the issue if I shift the car into neutral before I slow down. So it has to be the the transmission not downshifting smoothly. Done it from day one. I even replaced my rotors and brakes so I know that isn't it.

Normal?
Old 02-04-14, 07:36 AM
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roadfrog
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Originally Posted by thegov3
Anyone else had a slight shutter or jerking feeling in their LS, sort of like the rotors are warped, when they slow to a stop from 40+ MPH? I just cannot make the car stop smoothly no matter the amount of brake pressure I apply.

I can 100% eliminated the issue if I shift the car into neutral before I slow down. So it has to be the the transmission not downshifting smoothly. Done it from day one. I even replaced my rotors and brakes so I know that isn't it.

Normal?
I can only say that, my car did the same thing after I bought it used last month. Pulsating, etc. I replaced my front rotors and now is silky smooth. Since you already replaced your rotors, I can't understand what else would cause that.
Old 02-04-14, 07:55 AM
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Tom57
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It's the transmission, not the brakes. When have you had the transmission fluid changed?
Old 02-05-14, 06:46 PM
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Tom57
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If the noise can be "100% eliminated" by shifting into Neutral before slowing down, it's the trans.
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