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We bought this buick enclave because we fell in love with the drive and the beauty of it! We had no idea it had the torque converter replaced at 19000 miles. We had no idea it had an extended warranty that we never got or was told about(didn't find that out until better than 3 years after we bought it). We bought the car with 32000 miles on it thinking it would last us a long time! WRONG! We had a misfire replaced the coil pack on #3, and it went down hilll from there!! We are having shuddering issues with it. We were told by a service manager to change the tranny fluid( 84000). It will take care of it! WRONG! We are at the point to replace the transmission, but doubt if that will take care of the problem. The problem is they have had issues for years on the 6 speed transmission(now the 9 speed are doing the same thing!!) Someone needs to revent the wheel because this one is definitely out of round! If we can get ours fixed with the extended warranty we were cheated out of would be great! But am not holding my breathe. I am not a GM fan anymore!

Anyone got any ideas on the tranny shudder? Wondering about just replacing the torque converter again vs the whole transmission. Also wondering about questioning the dealership on why we didn't receive the extended warranty that went with the car?? That would fix the transmission and we wouldn't be out $6000
 

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Did the dealer replace the transmission fluid with the Mobil 1 Synthetic, or any off the shelf Full Synthetic fluid? You may try a AntiShudder additive to see if it helps.
6371
 

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Yes the Mobil 1 was used and we did add the shudder additive. I haven't been able to find a contact to ask about the warranty. I am afraid we are going to have to put a new transmission in. We have no other issues except the shudder.
 

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My 2014 Buick Enclave just had the torque converter replaced as well. Shuddering started back at about 96k miles and the dealer told us to return if it got worse or the engine light comes on! Not covered under warranty we were told. Had a transmission specialist do the work ($3.2k) and he told us these GM/Buick transmissions are keeping him doing good... fixes them weekly. We also had a 2008 GMC Acadia before the Enclave and on that the 2-3 gear plates broke at 85k miles. We are done with these weak GM transmissions which are undersized for these vehicles. Losing me to foreign made SUVs! Out of the dozens of vehicles I have owned over my long life, these are the first transmissions which could barely make it to 100k before failing!! Crazy.
 

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My 2014 Buick Enclave just had the torque converter replaced as well. Shuddering started back at about 96k miles and the dealer told us to return if it got worse or the engine light comes on! Not covered under warranty we were told. Had a transmission specialist do the work ($3.2k) and he told us these GM/Buick transmissions are keeping him doing good... fixes them weekly. We also had a 2008 GMC Acadia before the Enclave and on that the 2-3 gear plates broke at 85k miles. We are done with these weak GM transmissions which are undersized for these vehicles. Losing me to foreign made SUVs! Out of the dozens of vehicles I have owned over my long life, these are the first transmissions which could barely make it to 100k before failing!! Crazy.
I agree with you on buying foreign SUVs. I really believe GM knew these transmissions were junk, to have changed the warranty to 70,000 for that year. We are still debating the complete transmission exchange(there are alot of these transmissions out there to buy!!) or replace the torque converter. We have a good mechanic that does alot for us. The torque converter is alot less. We get it repaired it is definitely going to find a new home!! Good luck to you!!
 

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I completely cured the engine/transmission shudder problem with replacing all motor and transmission mounts. First I thought the clutch were slipping, poured some conditioner into the transmission to help with the slip, then I spent the money to get all mounts replaced, and found that solved the shudder problem completely. This is just my experience and what transpired with my Enclave.
 

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As a former owner of a 2009 Enclave I say congratulations on making it this far. IMHO its one expensive repair after another past 100k miles. Unless you are or know a mechanic say goodbye before you wake up and are thousands of dollars into repairs..
 

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Im the opposite. 2010 built in July 2009.
156,200 and trans is doing well.
 

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I do indeed do drain and refills. Very easy to do.
Though I will say- that I did have to replace the plastic laminate discs that where used on the 2009-2012?s. (@144K).
You know they have torn when you go from park to D, and it takes 1-3 seconds to shift into gear.
In my case I recognized the symptom at 144K, ordered the parts and changed them before any CELs were set.
$107 for trans fluid, laminate disc, and seals. Did the job on a Saturday.
Shifting was back to normal.

These have been my trans fluid drain/refills.
(note that drain-refills are simply opening the trans drain bolt and allowing whats there to drain out-- about 5.5 qts. The trans holds 11 qts. so only half comes out. You refill with new fluid, and this way you maintain clean/fresh fluid in the trans).

50,464
50,883
79,147
79,657
80,441
100,000
110,000
128,000
140,000
143,775
 

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My 2019 manual says there's no need to check the transmission fluid and there is no dipstick in the engine area, but then it says to always check the fluid before a towing trip and that it has to be at operating temperature when checking. Kind of confusing. Does anyone know where the dipstick and drain plug are on a 2019?

It also says there is no fluid change under the Normal maintenance schedule, but every 45k miles under Severe. So if my driving is normal, do I believe the manual or the people who change the fluid every 30k or so no matter what?
 

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doh-- I believe the 1st gen trans holds 9.5 qts.. not 11.
a drain and refill is 5.3 qts.
 
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