Torque converter/ tranny shudder?!?
#1
09-02-2009, 12:08 AM
Torque converter/ tranny shudder?!?
I have an 03 outlander with just over 60000 miles on it. lately i have noticed an intermittent shudder between 30 and 50 mph but only between 1500 and 1800 rpm in third and forth gear. I changed the tranny fluid with no results and am hoping i don't have to replace the tranny or torque converter (or my faith in mitsubishi will be lost) Any suggestions would really help.
#2
09-06-2009, 10:13 PM
same symptoms here
I am experiencing the exact same thing on my 03 outlander. It just started a couple of days ago. I have 105000 miles. Let me know if you figure out what the problem is. I just paid this thing off about 2 weeks ago.
#3
09-08-2009, 08:13 PM
Needs ATF flushed and replaced
I took mine in to the dealership and had them flush and replace the ATF fluid as indicated in the attached TSB. It seems to have helped. I will let you know if it comes back. They said the ATF should be replaced every 30K miles. I don't believe mine had ever been replaced and they said it was nasty.
TSB-03-23-006
A/T - Shudder/Surge/Vibration From 35 - 50 Mph
No.: TSB-03-23-006
DATE: October, 2003
MODEL: See below
SUBJECT:
TORQUE CONVERTER VIBRATION
PURPOSE
Some customers may complain of shudder, surge, and/or vibration (possibly intermittent) when driving 35-50 mph (56-80 kph) at steady throttle. This may be due to the breakdown of the A/T fluid, creating a torque converter damper clutch shudder, which can be eliminated by following the procedures in this bulletin.
NOTE On 1999 Montero Sport rear-wheel-drive models, partial torque converter lock-up also causes rear leaf spring chatter.
AFFECTED VEHICLES
2003 Outlander
2002-2003 Lancer
1997-2002 Mirage
1999-2003 Galant
2000-2003 Eclipse
2001-2003 Eclipse Spyder
1997-2003 Diamante
2001-2003 Montero
1999-2003 Montero Sport
PROCEDURE
NOTE The information in this bulletin applies to SP-III ATF only. The friction coefficient of SP-III is about 10% lower than that of SP-II, which was used in TSB-01-23-010. Therefore, these specifications are different than those in the previous TSB.
1. Test drive the vehicle to determine whether the shudder/surge/vibration is an engine or transmission concern. Be sure the engine reaches operating temperature. Then turn the engine off and inspect for engine mechanical problems. Check engine base settings and adjust if needed.
a. If the shudder/surge/vibration is an engine concern, refer to Group 11 in the appropriate service manual for diagnosis and repair procedures.
b. It the shudder/surge/vibration is a transmission concern, NOT an engine concern, continue with Step 2.
2. Test drive the vehicle to determine whether the condition occurs during torque converter clutch partial lock-up. Use the scan tool data list to drive within the following parameters. ATF temperature must be 158 degrees F (70 degrees C) or higher.
Note the TCC duty cycle reading when the shudder/surge/vibration occurs.
a. If shudder/surge/vibration occurs when the TCC duty cycle is approximately 45% - 55%, the condition may be due to the breakdown of the A/T fluid. Go to Step 3 for repair instructions.
b. If shudder/surge/vibration does NOT occur when the TCC duty cycle is approximately 45% - 55%, diagnose for the following possible causes. Use an electronic vibration analyzer (Kent-Moore J-38792 or equivalent) as described in the "Noise, Vibration and Waterleaks (NVW)" training skill module available through the Mitsubishi Academy.
^ Tire vibration
^ Front axle vibration
^ Damage to A/T internal components
^ Transfer case damage
3. If shudder/surge/vibration occurs when the TCC duty cycle is approximately 45% - 55%:
a. Flush the A/T system as described in the "A/T Fluid Replacement" and "Flushing Coolers and Tubes" procedures in Group 23 of the service manual. Backflush the transmission oil cooler when you flush the system. If a flushing tool is not available, refer to TSB-99-23-011 for de tails on using an aerosol A/T oil cooler flush solution.
b. Refill with new SP-III automatic transmission fluid. It is important to use SP-III to eliminate torque converter damper clutch shudder.
c. With the engine idling and at normal operating temperature, check the ATF temperature by reading "A/T Temperature Sensor" on the scan tool data list. When the ATF temperature is between 158 - 176 degrees F (70-80 degrees C), the ATF level must be just below the "F" mark on the dipstick. Go to Step 4.
d. Test drive to confirm the repair. A small amount of vibration may still exist, which will go away eventually (with 1-60 minutes of driving) as the Spill works into the clutch material.
If the shudder/surge/vibration condition continues even after the vehicle has been driven for 60 minutes after the repair, or if the customer later returns the vehicle with the same condition, replace the torque converter as described in Group 23 of the appropriate service manual.
WARRANTY INFORMATION
Normal warranty procedures apply.
TSB-03-23-006
A/T - Shudder/Surge/Vibration From 35 - 50 Mph
No.: TSB-03-23-006
DATE: October, 2003
MODEL: See below
SUBJECT:
TORQUE CONVERTER VIBRATION
PURPOSE
Some customers may complain of shudder, surge, and/or vibration (possibly intermittent) when driving 35-50 mph (56-80 kph) at steady throttle. This may be due to the breakdown of the A/T fluid, creating a torque converter damper clutch shudder, which can be eliminated by following the procedures in this bulletin.
NOTE On 1999 Montero Sport rear-wheel-drive models, partial torque converter lock-up also causes rear leaf spring chatter.
AFFECTED VEHICLES
2003 Outlander
2002-2003 Lancer
1997-2002 Mirage
1999-2003 Galant
2000-2003 Eclipse
2001-2003 Eclipse Spyder
1997-2003 Diamante
2001-2003 Montero
1999-2003 Montero Sport
PROCEDURE
NOTE The information in this bulletin applies to SP-III ATF only. The friction coefficient of SP-III is about 10% lower than that of SP-II, which was used in TSB-01-23-010. Therefore, these specifications are different than those in the previous TSB.
1. Test drive the vehicle to determine whether the shudder/surge/vibration is an engine or transmission concern. Be sure the engine reaches operating temperature. Then turn the engine off and inspect for engine mechanical problems. Check engine base settings and adjust if needed.
a. If the shudder/surge/vibration is an engine concern, refer to Group 11 in the appropriate service manual for diagnosis and repair procedures.
b. It the shudder/surge/vibration is a transmission concern, NOT an engine concern, continue with Step 2.
2. Test drive the vehicle to determine whether the condition occurs during torque converter clutch partial lock-up. Use the scan tool data list to drive within the following parameters. ATF temperature must be 158 degrees F (70 degrees C) or higher.
Note the TCC duty cycle reading when the shudder/surge/vibration occurs.
a. If shudder/surge/vibration occurs when the TCC duty cycle is approximately 45% - 55%, the condition may be due to the breakdown of the A/T fluid. Go to Step 3 for repair instructions.
b. If shudder/surge/vibration does NOT occur when the TCC duty cycle is approximately 45% - 55%, diagnose for the following possible causes. Use an electronic vibration analyzer (Kent-Moore J-38792 or equivalent) as described in the "Noise, Vibration and Waterleaks (NVW)" training skill module available through the Mitsubishi Academy.
^ Tire vibration
^ Front axle vibration
^ Damage to A/T internal components
^ Transfer case damage
3. If shudder/surge/vibration occurs when the TCC duty cycle is approximately 45% - 55%:
a. Flush the A/T system as described in the "A/T Fluid Replacement" and "Flushing Coolers and Tubes" procedures in Group 23 of the service manual. Backflush the transmission oil cooler when you flush the system. If a flushing tool is not available, refer to TSB-99-23-011 for de tails on using an aerosol A/T oil cooler flush solution.
b. Refill with new SP-III automatic transmission fluid. It is important to use SP-III to eliminate torque converter damper clutch shudder.
c. With the engine idling and at normal operating temperature, check the ATF temperature by reading "A/T Temperature Sensor" on the scan tool data list. When the ATF temperature is between 158 - 176 degrees F (70-80 degrees C), the ATF level must be just below the "F" mark on the dipstick. Go to Step 4.
d. Test drive to confirm the repair. A small amount of vibration may still exist, which will go away eventually (with 1-60 minutes of driving) as the Spill works into the clutch material.
If the shudder/surge/vibration condition continues even after the vehicle has been driven for 60 minutes after the repair, or if the customer later returns the vehicle with the same condition, replace the torque converter as described in Group 23 of the appropriate service manual.
WARRANTY INFORMATION
Normal warranty procedures apply.
#4
10-03-2010, 06:11 PM
Vibrations when driving 35-50 mph (56-80 kph) at steady throttle
Hi
I just bought a 05 Endeavor LS with 85K miles on it.
I observe the same kind of vibrations when driving with steady throttle between 35 - 50 mph.
I would like to know if the ATF flush and replacement has worked efficiently.
If not what should I do next. repalce the torque converter? How much would it cost?
Thanks to the community
I just bought a 05 Endeavor LS with 85K miles on it.
I observe the same kind of vibrations when driving with steady throttle between 35 - 50 mph.
I would like to know if the ATF flush and replacement has worked efficiently.
If not what should I do next. repalce the torque converter? How much would it cost?
Thanks to the community
#8
01-18-2012, 01:57 PM
I had a thread about shudder in my Montero 2002 (not sport).
1. replaced fluid - no better
2. replaced torque converter - no better
3. repaired transmission - fixed the problem
I had driven off the edge of the pavement so that wheels dropped into a deep ditch and the vehicle dropped onto its chassis. I yanked the wheel and jumped back onto the road. Sudden change in torque may have done damage.
When they stripped the transmission they found one of the clutches had lost its fiber surface coating (just like an old fashioned clutch) and the material had clogged up oil lines etc.
1. replaced fluid - no better
2. replaced torque converter - no better
3. repaired transmission - fixed the problem
I had driven off the edge of the pavement so that wheels dropped into a deep ditch and the vehicle dropped onto its chassis. I yanked the wheel and jumped back onto the road. Sudden change in torque may have done damage.
When they stripped the transmission they found one of the clutches had lost its fiber surface coating (just like an old fashioned clutch) and the material had clogged up oil lines etc.
#9
02-09-2012, 03:35 PM
2010 blown tranny
My 2010 outlander XLS just went to the dealer with a blown tranny after just 45K. Not good customer service at all from the dealer and seems like they don't really know how to fix the problem at this point in time.
#10
03-04-2013, 02:05 PM
I had the same shudder on my 2001 Montero. Had n idea what it was untill 3 months ago. I changed filter and oil on the tranny. No positive results. Just before ordering a new tranny I decided to change the oil again. When I drove the car back home out of the garage amazingly it is like new. That was a month ago and I never had any sign of the shudder again.