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

Car jerks when shifting from Park

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Old 04-22-09, 09:44 PM
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skperformance
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The mount is shot which has been mulitipled by not using the parking brake.
I bought a mount also and it cost me $60 in Canada.
Old 04-28-09, 09:41 AM
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JAndersson
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Default Have changed the trans mount now

The trans mount has now been changed. The car behaves better now. It's not a dramatic difference but still worth the money. The car still jerks a little bit when changing in and out of drive and reverse. But less then it was before. Maybe I have to flush the transmission to. The transmission fluid was a little bit brown. Changed out 5 liters at Toyota last summer. What do you think?
Old 04-28-09, 11:05 AM
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i'd be worried as to why it got so brown so quickly...
Old 04-28-09, 11:27 AM
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JAndersson
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It's not that brown. You can still see some red tone in it. The fluid does not look that bad. It just don't look fresh. Please see the attach picture on the transmission fluid to make your own opinion.
But if I still should be worried. What can it be then. The torque converter? Know the Lextreme sells some rebuild ones that doesn't seems to be that expensive. Is it hard to change the torque converter? Planning to keep the car for a long time and even put a bullet supercharger kit on it when I have enough money.
Attached Thumbnails Car jerks when shifting from Park-rimg0002.jpg  
Old 04-28-09, 01:57 PM
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shern
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1) Tranny Mount
2) Differential Carrier Mounts - There are 3 of them, one up front and two in the rear. If the tranny mount doesn't fix your problem, it most likely are these. The diff on my UCF20 was flopping around since all 3 mounts were toast.
Old 04-28-09, 11:54 PM
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JAndersson
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Originally Posted by shern
1) Tranny Mount
2) Differential Carrier Mounts - There are 3 of them, one up front and two in the rear. If the tranny mount doesn't fix your problem, it most likely are these. The diff on my UCF20 was flopping around since all 3 mounts were toast.
Thanks for your answer. Will check the differential carrier mounts then.
Old 04-29-09, 05:10 AM
  #22  
JAndersson
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Default Part number for Differential Carrier Mounts?

Does anybody know the part number for the Differential Carrier Mounts? Found this picture but can't really tell wich parts that are the mounts.
Attached Thumbnails Car jerks when shifting from Park-rearaxlehousingdifferential.png  
Old 06-06-09, 03:14 AM
  #23  
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Default Problem fixed

Never had to flush the transmission or buy new Differential Carrier Mounts. What I did was to adjust the transmission throttle cable, see this post: https://www.clublexus.com/forums/ls4...djustment.html
Old 10-02-09, 08:42 AM
  #24  
lazybummm
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Hi All, I'm bringing this back from the dead. I have the same problem with jerking when shifting from park. I followed the guide in the above link and my throttle cable seems to be different. The rubber stopper is stationary on the end and does not move. There is a metal ball or bulge (circled in red in first picture) that is on the cable that does not move. Anyone have any idea? I can pull the rubber stopper off. Here are a couple of pictures. The first one is how it looked "normally" when I pulled the plastic over off the throttle body, the second picture is when I move the rubber stopper. TIA for any help!



Old 10-02-09, 08:58 AM
  #25  
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My parking brake doesn't work either(never has since owning the car) and I too hear the loud thump when parked on an incline.How much would it cost to repair/install a parking brake.I am especially concerned because my LS is going to be stored for 3 months on a driveway with an incline.Would putting large cement stoppers(blocks),have the same beneficial effect as the parking brake?
Thanks
Oofer
Old 07-03-20, 02:55 PM
  #26  
Wstiggers
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Default 94 es300

My 94 ES300 jerks badly when I go to drive. After I reach a speed it'll stop. But I can't climb a hill from a stop. I've changed my coils and plugs. I'm out of thoughts on the matter.
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