Trans Shudder
#1
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This is a recent problem that has occured.
Year: 1998
Mileage: 83XXX
Trans fluid color: Red + Filled to top
Previous Owner: Older Lady full Maintenance at Lexus
Symptom: Shuddering trans between final gear and overdrive (sometimes shifts notchy between 1-3) Shifts into D, R no problem except for little nudge into D from N.
The transaxle has started to shudder at certain speeds. I do feel that shifts between gears at low RPM's are a bit rough but nothing horrid at all. The shift to overdrive gear however is pretty bad at times. The car cannot decide wether to use 3rd/4th or shift to overdrive. It seems to bounce back and forth and shudder. Today, at 60mph with 1/4 throttle, it shuddered 2x which resulted in a "Fuel Cut off" like feeling. It happen again but is nothing horrible. It just seems that the car has a hard time deciding between last gear and overdrive. From searching/knowlege this is what I think is the problem:
1. Needs trans fluid flush (Highly unlikley since its bright red and full)
2. Trans solendoids need replacement
3. Re-set ECU to adapt to new driving style with new owner
4. Rebuild trans as clutch plates slipping (Highly unlikely since it has 0 hesitation and holds power throughout all gears no problem at any rpm)
Name so more or see if I am right. I am going to drain the 2qt of fluid out just in case for a piece of mind and re-set the battery. Ill tell you how it all goes
This is a recent problem that has occured.
Year: 1998
Mileage: 83XXX
Trans fluid color: Red + Filled to top
Previous Owner: Older Lady full Maintenance at Lexus
Symptom: Shuddering trans between final gear and overdrive (sometimes shifts notchy between 1-3) Shifts into D, R no problem except for little nudge into D from N.
The transaxle has started to shudder at certain speeds. I do feel that shifts between gears at low RPM's are a bit rough but nothing horrid at all. The shift to overdrive gear however is pretty bad at times. The car cannot decide wether to use 3rd/4th or shift to overdrive. It seems to bounce back and forth and shudder. Today, at 60mph with 1/4 throttle, it shuddered 2x which resulted in a "Fuel Cut off" like feeling. It happen again but is nothing horrible. It just seems that the car has a hard time deciding between last gear and overdrive. From searching/knowlege this is what I think is the problem:
1. Needs trans fluid flush (Highly unlikley since its bright red and full)
2. Trans solendoids need replacement
3. Re-set ECU to adapt to new driving style with new owner
4. Rebuild trans as clutch plates slipping (Highly unlikely since it has 0 hesitation and holds power throughout all gears no problem at any rpm)
Name so more or see if I am right. I am going to drain the 2qt of fluid out just in case for a piece of mind and re-set the battery. Ill tell you how it all goes
#2
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* If it were the solenoids, you'd have idiot lights & stored codes.
* The ECU is not retarded. It would never get that far out of whack.
1) What fluid is in it? Dexron-III, or TT-IV?
2) Needs to be flushed, incorrect fluid level, clogged transmission filter, bad pump / clogged passages -> low pressure
3) I think almost all the A541's had a kick-down cable. Check / Adjust the TV cable.
* The ECU is not retarded. It would never get that far out of whack.
1) What fluid is in it? Dexron-III, or TT-IV?
2) Needs to be flushed, incorrect fluid level, clogged transmission filter, bad pump / clogged passages -> low pressure
3) I think almost all the A541's had a kick-down cable. Check / Adjust the TV cable.
#3
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![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Originally Posted by Pheonix
* If it were the solenoids, you'd have idiot lights & stored codes.
* The ECU is not retarded. It would never get that far out of whack.
1) What fluid is in it? Dexron-III, or TT-IV?
2) Needs to be flushed, incorrect fluid level, clogged transmission filter, bad pump / clogged passages -> low pressure
Will have it pressure tested but where?
3) I think almost all the A541's had a kick-down cable. Check / Adjust the TV cable.
* The ECU is not retarded. It would never get that far out of whack.
1) What fluid is in it? Dexron-III, or TT-IV?
2) Needs to be flushed, incorrect fluid level, clogged transmission filter, bad pump / clogged passages -> low pressure
Will have it pressure tested but where?
3) I think almost all the A541's had a kick-down cable. Check / Adjust the TV cable.
2)Can I use the Type IV even though the car is a 98?
Will have it pressure tested but where?
3) Will Adjust but loosen or tighten for firmer or softer?
Thanks Pheonix
#5
Lexus Champion
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If the transmission dipstick has "Use Type IV Only" stamped on it... Type IV is it.
Check your owners manual to be sure.
If so, have a Toyota dealer flush the system, insuring you eliminate any "other" fluid Jiffy may have added. Many use a universal type fluid.... 'bout the only thing right is the color.
Check your owners manual to be sure.
If so, have a Toyota dealer flush the system, insuring you eliminate any "other" fluid Jiffy may have added. Many use a universal type fluid.... 'bout the only thing right is the color.
#6
![Cool](https://www.clublexus.com/forums/images/icons/icon6.gif)
Ya, I'm not sure if '98 was the switch over, but it's close. Honestly... I remember the swap over happening mid year. So you'll have to check your manuals.
Original '98 TSIB
![](http://img.photobucket.com/albums/v414/Toysrme/Answers/TTIV-I.jpg)
Revised TSIB
Original '98 TSIB
![](http://img.photobucket.com/albums/v414/Toysrme/Answers/TTIV-I.jpg)
Revised TSIB
![](http://img.photobucket.com/albums/v414/Toysrme/Answers/TTIV-II.jpg)
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