HELP! Buick Enclave.

Transmission to Rear-end

Moderator: Team

Carnut1
Guru
Guru
Posts: 3568
Joined: Tue Jun 11, 2013 6:32 pm
Location: Melbourne fl.

HELP! Buick Enclave.

Post by Carnut1 » Sat Dec 30, 2017 8:17 am

0521171820b.jpg
1229171610.jpg
Asking ST members who know for advice. Our 2009 Bick Enclave.104k miles, Wiffy and kiddies coming home from Gramdma's house Christmas visit I get the call stuck with overheated tranny. Cool day yesterday so something is up. Little research shows wave plate issue causing this problem. Is this a recall item? Do I need to clean out a kids college fund to have this tranny rebuilt? When it rains it pours and timing is not great. Please let me know what is the likely cause and course of action. Thanks, Charlie
Servedio Cylinder Head Development
631-816-4911
9:00am - 9:00pm EST

Keith Morganstein
Guru
Guru
Posts: 5228
Joined: Sun Feb 19, 2006 10:19 am
Location: MA

Re: HELP! Buick Enclave

Post by Keith Morganstein » Sat Dec 30, 2017 8:39 am

6T70- 6T75 trans? Pretty good trans, can break a wave plate, but it's the smaller Aisin trans that's known for a broken plate.

Did you recently service the trans? They will overheat if even just a little overfull.

The 6T70-75 can have some solenoid problems that give that symptom. I think there might be a TSB on it.

If you have to go there, a reman installed is $3000-3500.
A good used trans is a viable option,
There's three different final drive ratios so make sure if you replace it.


I just swapped an Aisin six speed on an AWD Equinox, it took me ten hours with a lift.
Last edited by Keith Morganstein on Sat Dec 30, 2017 8:45 am, edited 1 time in total.
Automotive Machining, cylinder head rebuilding, engine building. Old school shop, semi-retired moonlighter. Can't seem to quit #-o

Carnut1
Guru
Guru
Posts: 3568
Joined: Tue Jun 11, 2013 6:32 pm
Location: Melbourne fl.

Re: HELP! Buick Enclave.

Post by Carnut1 » Sat Dec 30, 2017 8:44 am

Keith Morganstein wrote:
Sat Dec 30, 2017 8:39 am
6T70- 6T75 trans? Pretty good trans, can break a wave plate, but it's the smaller Aisin trans that's known for a broken plate.

Did you recently service the trans? They will overheat if even just a little overfull.

The 6T70-75 can have some solenoid problems that give that symptom. I think there might be a TSB on it.
I have not touched tranny, I checked fliud level a while ago and was fine. No idea which tranny is in this one, it is an all wheel drive model as that will give a better idea which tranny it is. Thanks, Charlie
Servedio Cylinder Head Development
631-816-4911
9:00am - 9:00pm EST

Keith Morganstein
Guru
Guru
Posts: 5228
Joined: Sun Feb 19, 2006 10:19 am
Location: MA

Re: HELP! Buick Enclave.

Post by Keith Morganstein » Sat Dec 30, 2017 8:50 am

Carnut1 wrote:
Sat Dec 30, 2017 8:44 am
Keith Morganstein wrote:
Sat Dec 30, 2017 8:39 am
6T70- 6T75 trans? Pretty good trans, can break a wave plate, but it's the smaller Aisin trans that's known for a broken plate.

Did you recently service the trans? They will overheat if even just a little overfull.

The 6T70-75 can have some solenoid problems that give that symptom. I think there might be a TSB on it.
I have not touched tranny, I checked fliud level a while ago and was fine. No idea which tranny is in this one, it is an all wheel drive model as that will give a better idea which tranny it is. Thanks, Charlie
Go onto www.car-part.com

Search for trans, the code will be listed (so you know which trans model codes to look for), there is a tag on the trans with the code. The code is also in the glove box or door panel.
Automotive Machining, cylinder head rebuilding, engine building. Old school shop, semi-retired moonlighter. Can't seem to quit #-o

Carnut1
Guru
Guru
Posts: 3568
Joined: Tue Jun 11, 2013 6:32 pm
Location: Melbourne fl.

Re: HELP! Buick Enclave.

Post by Carnut1 » Sat Dec 30, 2017 9:02 am

Called into work but I will check this out later. Thanks, Charlie
Servedio Cylinder Head Development
631-816-4911
9:00am - 9:00pm EST

Keith Morganstein
Guru
Guru
Posts: 5228
Joined: Sun Feb 19, 2006 10:19 am
Location: MA

Re: HELP! Buick Enclave.

Post by Keith Morganstein » Sat Dec 30, 2017 9:06 am

Carnut1 wrote:
Sat Dec 30, 2017 9:02 am
Called into work but I will check this out later. Thanks, Charlie
It looks as the 6T75 is the only trans in that car.
Automotive Machining, cylinder head rebuilding, engine building. Old school shop, semi-retired moonlighter. Can't seem to quit #-o

User avatar
woody b
Guru
Guru
Posts: 1165
Joined: Thu Jun 27, 2013 6:58 pm

Re: HELP! Buick Enclave.

Post by woody b » Sat Dec 30, 2017 9:31 am

There is a special policy(extended warranty) from GM on the wave plate in your transmission. It's good for 10 years/ 120000 miles. I used to be a transmission tech at a GM dealer. I've fixed hundreds of them. I never had a customer say they had the overheated message, but it's probably the wave plate. When the wave plate breaks if spreads debris through everything. My guess is there's some debris blocking cooler flow. This bulletin may have been updated since this but here's what it says.
#14404: Special Coverage Adjustment - Transmission Clutch Wave Plate - (Mar 3, 2015)
Subject: 14404 – Special Coverage Adjustment – Transmission Clutch Wave Plate

Models: 2007-2009 Buick Enclave
2008-2009 Chevrolet Equinox, Malibu
2009 Chevrolet Traverse
2007-2009 GMC Acadia
2007-2009 Pontiac G6
2008-2009 Pontiac Torrent
2007-2009 Saturn AURA, OUTLOOK

--------------------------------------------------------------------------------

Condition
Some 2007-2009 model year Buick Enclave, GMC Acadia, Pontiac G6, Saturn AURA and OUTLOOK, 2008-2009 model year Chevrolet Equinox and Malibu, and Pontiac Torrent, and 2009 model year Chevrolet Traverse vehicles identified above and, equipped with a 6T70 or 6T75 - 6 speed FWD automatic transmission –– may experience a cracked or fractured wave plate, resulting in a loss of 3rd, 5th and reverse gears.

Special Coverage Adjustment
This special coverage covers the condition described above for a period of 10 years or 120,000 miles (193,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership.

Dealers are to replace the 3rd /5th / reverse clutch plate. The repairs will be made at no charge to the customer.

For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after March 2, 2015 are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to March 2, 2015 must be submitted to the Service Contract provider.

Vehicles Involved
All involved vehicles are identified by Vehicle Identification Number on the Applicable Warranties section in GM Global Warranty Management system. Dealership service personnel should always check this site to confirm vehicle involvement prior to beginning any required inspections and/or repairs. It is important to routinely use this tool to verify eligibility because not all similar vehicles may be involved regardless of description or option content.


Customer Reimbursement – For US
Customer requests for reimbursement of previously paid repairs to correct the condition described in this bulletin are to be submitted to the dealer by March 31 2016, unless otherwise specified by state law. If this is not convenient for the customer, they may mail the completed Customer Reimbursement Request Form and all required documents to the GM Customer Assistance Center. Repairs must have occurred within the 10 years of the date the vehicle was originally placed in service, or 120,000 miles, whichever occurs first.

All reasonable and customary costs to correct the condition described in this bulletin should be considered for reimbursement. Any questions or concerns should be reviewed with your GM representative prior to processing the request.

When a customer requests reimbursement, they must provide the following:

•A completed Customer Reimbursement Request Form. This form is mailed to the customer or can be obtained through GM GlobalConnect.
•The name and address of the person who paid for the repair.
•Paid receipt confirming the amount of the repair expense, a description of the repair, and the person or entity performing the repair.
Important: GM requires dealers to approve or deny a reimbursement request within 30 days of receipt. If a reimbursement request is approved, the dealer should immediately issue a check to the customer and submit an appropriate warranty transaction for the incurred expense. If a reimbursement request is denied, the dealer MUST provide the customer with a clear and concise explanation, in writing, as to why the request was denied. The bottom portion of the Customer Reimbursement Request Form may be used for this purpose. If the denial was due to missing documents, the customer can resubmit the request when the missing documents are obtained, as long as it is still within the allowed reimbursement period.

Warranty transactions for customer reimbursement of previously paid repairs are to be submitted as required by GM Global Warranty Management. Additional information can also be found in Warranty Administration Bulletin 11-00-89-004.

If they say (before teardown) your problem isn't caused by the wave plate that's covered by the special policy insist that it is, and debris have blocked cooler flow. I've been gone from the GM dealer for almost 2 years, but I'm sure your wave plate is covered by this special policy.
I used to be a people person, but people ruined it.

Carnut1
Guru
Guru
Posts: 3568
Joined: Tue Jun 11, 2013 6:32 pm
Location: Melbourne fl.

Re: HELP! Buick Enclave.

Post by Carnut1 » Sat Dec 30, 2017 11:16 am

Thanks Woody, I don't think Dad had the extended warrantee. I inherited the buick a few years ago and did not add warrantee coverage.
Servedio Cylinder Head Development
631-816-4911
9:00am - 9:00pm EST

pdq67
Guru
Guru
Posts: 7208
Joined: Thu Mar 04, 2010 8:05 pm

Re: HELP! Buick Enclave.

Post by pdq67 » Sat Dec 30, 2017 11:23 am

Stupid question??

What is a, "wave plate"??

pdq67

Carnut1
Guru
Guru
Posts: 3568
Joined: Tue Jun 11, 2013 6:32 pm
Location: Melbourne fl.

Re: HELP! Buick Enclave.

Post by Carnut1 » Sat Dec 30, 2017 11:26 am

It looks like a hardened clutch plate but it is wavy. I think it puts pressure on the clutches.
Servedio Cylinder Head Development
631-816-4911
9:00am - 9:00pm EST

ZIGGY
Guru
Guru
Posts: 1245
Joined: Mon Mar 05, 2007 3:15 am
Location: Dallas, Texas

Re: HELP! Buick Enclave.

Post by ZIGGY » Sat Dec 30, 2017 11:34 am

Carnut1 wrote:
Sat Dec 30, 2017 11:16 am
Thanks Woody, I don't think Dad had the extended warrantee.
Doesn't matter. The "extended warranty" refers to the additional coverage GM is giving the owner
on this particular part and repair.

Carnut1
Guru
Guru
Posts: 3568
Joined: Tue Jun 11, 2013 6:32 pm
Location: Melbourne fl.

Re: HELP! Buick Enclave.

Post by Carnut1 » Sat Dec 30, 2017 11:39 am

Oh Ziggy! That would be spectacular news!
Servedio Cylinder Head Development
631-816-4911
9:00am - 9:00pm EST

Brian P
Guru
Guru
Posts: 1306
Joined: Wed Jan 02, 2008 7:35 pm
Location: Toronto, Ontario, Canada

Re: HELP! Buick Enclave.

Post by Brian P » Sat Dec 30, 2017 11:54 am

The wavy spring means when the clutch piston starts applying, it does so progressively over whatever distance it takes to flatten out the waviness. In the old days of hydraulic controls, this is what the accumulators did.

Brian P
Guru
Guru
Posts: 1306
Joined: Wed Jan 02, 2008 7:35 pm
Location: Toronto, Ontario, Canada

Re: HELP! Buick Enclave.

Post by Brian P » Sat Dec 30, 2017 12:04 pm

I found something that may be of interest to you. Has this transmission been serviced at some point in the recent past?

https://certifiedtransmission.wordpress ... overheats/

Keith Morganstein
Guru
Guru
Posts: 5228
Joined: Sun Feb 19, 2006 10:19 am
Location: MA

Re: HELP! Buick Enclave.

Post by Keith Morganstein » Sat Dec 30, 2017 1:35 pm

Awesome info, nothing better than someone with knowledge on the inside!
    woody b wrote:
    Sat Dec 30, 2017 9:31 am
    There is a special policy(extended warranty) from GM on the wave plate in your transmission. It's good for 10 years/ 120000 miles. I used to be a transmission tech at a GM dealer. I've fixed hundreds of them. I never had a customer say they had the overheated message, but it's probably the wave plate. When the wave plate breaks if spreads debris through everything. My guess is there's some debris blocking cooler flow. This bulletin may have been updated since this but here's what it says.
    #14404: Special Coverage Adjustment - Transmission Clutch Wave Plate - (Mar 3, 2015)
    Subject: 14404 – Special Coverage Adjustment – Transmission Clutch Wave Plate

    Models: 2007-2009 Buick Enclave
    2008-2009 Chevrolet Equinox, Malibu
    2009 Chevrolet Traverse
    2007-2009 GMC Acadia
    2007-2009 Pontiac G6
    2008-2009 Pontiac Torrent
    2007-2009 Saturn AURA, OUTLOOK

    --------------------------------------------------------------------------------

    Condition
    Some 2007-2009 model year Buick Enclave, GMC Acadia, Pontiac G6, Saturn AURA and OUTLOOK, 2008-2009 model year Chevrolet Equinox and Malibu, and Pontiac Torrent, and 2009 model year Chevrolet Traverse vehicles identified above and, equipped with a 6T70 or 6T75 - 6 speed FWD automatic transmission –– may experience a cracked or fractured wave plate, resulting in a loss of 3rd, 5th and reverse gears.

    Special Coverage Adjustment
    This special coverage covers the condition described above for a period of 10 years or 120,000 miles (193,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership.

    Dealers are to replace the 3rd /5th / reverse clutch plate. The repairs will be made at no charge to the customer.

    For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after March 2, 2015 are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to March 2, 2015 must be submitted to the Service Contract provider.

    Vehicles Involved
    All involved vehicles are identified by Vehicle Identification Number on the Applicable Warranties section in GM Global Warranty Management system. Dealership service personnel should always check this site to confirm vehicle involvement prior to beginning any required inspections and/or repairs. It is important to routinely use this tool to verify eligibility because not all similar vehicles may be involved regardless of description or option content.


    Customer Reimbursement – For US
    Customer requests for reimbursement of previously paid repairs to correct the condition described in this bulletin are to be submitted to the dealer by March 31 2016, unless otherwise specified by state law. If this is not convenient for the customer, they may mail the completed Customer Reimbursement Request Form and all required documents to the GM Customer Assistance Center. Repairs must have occurred within the 10 years of the date the vehicle was originally placed in service, or 120,000 miles, whichever occurs first.

    All reasonable and customary costs to correct the condition described in this bulletin should be considered for reimbursement. Any questions or concerns should be reviewed with your GM representative prior to processing the request.

    When a customer requests reimbursement, they must provide the following:

    •A completed Customer Reimbursement Request Form. This form is mailed to the customer or can be obtained through GM GlobalConnect.
    •The name and address of the person who paid for the repair.
    •Paid receipt confirming the amount of the repair expense, a description of the repair, and the person or entity performing the repair.
    Important: GM requires dealers to approve or deny a reimbursement request within 30 days of receipt. If a reimbursement request is approved, the dealer should immediately issue a check to the customer and submit an appropriate warranty transaction for the incurred expense. If a reimbursement request is denied, the dealer MUST provide the customer with a clear and concise explanation, in writing, as to why the request was denied. The bottom portion of the Customer Reimbursement Request Form may be used for this purpose. If the denial was due to missing documents, the customer can resubmit the request when the missing documents are obtained, as long as it is still within the allowed reimbursement period.

    Warranty transactions for customer reimbursement of previously paid repairs are to be submitted as required by GM Global Warranty Management. Additional information can also be found in Warranty Administration Bulletin 11-00-89-004.

    If they say (before teardown) your problem isn't caused by the wave plate that's covered by the special policy insist that it is, and debris have blocked cooler flow. I've been gone from the GM dealer for almost 2 years, but I'm sure your wave plate is covered by this special policy.
    Automotive Machining, cylinder head rebuilding, engine building. Old school shop, semi-retired moonlighter. Can't seem to quit #-o

    Post Reply