2006-2007 TF-80SC Automatic Transmission Valve Body Issue & Serial Number Info
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    1. #1
      Global Moderator R-Pow3R3d's Avatar
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      Post 2006-2007 TF-80SC Automatic Transmission Valve Body Issue & Serial Number Info

      I wanted to make a post where I could assemble the assorted things I've found regarding the Aisin TF-80SC Transmission and its valve body problems from MY 2006 to MY 2007. I developed it over in the XC90 forum and it's now ready for "prime time" here in the R forum where it will get more exposure.

      Models affected:

      2006-2007 Volvo S60R GT
      2006-2007 Volvo V70R GT
      2006-2007 Volvo XC90 V8 (All Trims)
      2007 Volvo XC90 3.2L (All Trims)
      2007 Volvo S80 V8 (All Trims)
      2007 Volvo S80 3.2L (All Trims)

      Transmission Wiki - "It is designed to handle a maximum of 440 N·m (324.5 ft·lbf) of torque."


      The Technical Deficiency:

      From this post some details about the problem:
      What goes bad in the valve bodies is the bores in which the valves ride. They become worn out and cross leaks occur that no amount of reprogramming can compensate for. The TCM turns solenoids on and off to stroke valves to direct fluid to specific locations inside the transmission. When the valve bores are worn out that control of flow is no longer possible.
      This thread, from user MnOpRacInG, shows a tear down of a failing valve body. The worn bores and valves are clearly visible, as demonstrated in the photos below:




      Here's the TNN regarding the valve body:

      (Dated: 11-09-2007)
      TNN43-53-2007-11-09 Title: Valve Body: Customer Interest - A/T - Harsh Shifts/False Neutrals/Shift Flare
      MODEL/YEAR:
      2005- for XC90 V8
      2006- for S60R/V70R
      2007- for XC90 3.2 & S80

      SUBJECT: TF80-SC, 6 Speed Automatic Transmission Fault Tracing Tips
      REFERENCE: VIDA, TNN 40-02
      Note: This TNN supersedes the previous 43-53, dated 12/21/2006. Information about speed sensor and valve body faults has been added. Please update your files.
      This document summarizes customer complaints related to the 6 speed Automatic Transmission (TF80-SC) and should be used together with the information in VIDA.

      Valve Body: The Valve Body should be replaced to address the following symptoms:
      1. Customer complaints about 2-3 upshift quality. The shift may be described as harsh, or as a shudder. The symptom is usually more apparent during the first few minutes of driving after a cold start.
      2. Customer complaints of shudder when slowing down, just before coming to a stop. The symptom may also be described as a harsh downshift just before coming to a stop.
      3. Neutral condition in 4th, 5th & 6th gear; normal behavior in 1st, 2nd, 3rd & Reverse. One or more of the following DTCs (Diagnostic Trouble Codes) may be present in the TCM (Transmission Control Module): P073400, P073500, P072900, P089600.
      4. Neutral condition in all gears except 5th & Reverse, usually with TCM P273300 set. DTCs for gear ratio(s) may also be set such as TCM P073000, P073100, P073200, or P073400.
      5. Customer complaints of engine RPM flare at upshift or power-on downshift (kickdown) due to a worn modulator valve bore.

      Note: Transmissions starting with serial number 06J and later already have the latest valve body which is designed to prevent these symptoms.


      Documentation:

      Aisin-Warner 09G Electronics - Anatomy of shift controls
      AW 6 Speeds: Valve Body Diagnosis
      Adjusting Clutch Control Valves on Aisin FWD 6-Speeds
      Exploded View w/Part #'s - Says for FWD, but I believe it is the same.
      Sonnax Valve Body Exploded View w/Part #'s


      Replacement Sources:

      Here's the sources I'm aware of for replacement valve bodies:

      2006/2007 S60R V70R and 2006/2007 XC90 V8/3.2L Automatic Geartronic Transmission Aisin Warner TF80SC Valve Body Rebuilt or New Replacement:

      Volvo 31259456 - New - $1200
      https://www.tascaparts.com/oem-parts...ystem-31259456

      One Stop Gearbox Shop - New - ~$560 Shipped (or $456) (Need to confirm these are the updated design)
      http://www.onestopgearboxshop.com/co...nt=29160338054

      Cobra Transmission - New - $1,154.99
      https://cobratransmission.com/tf80sc...volvo-305017-1
      (Note: Per VNDETTA's discussion with Cobra, this is a new and updated Aisin Warner Valve Body without a Volvo sticker on the packaging.)

      Ream Man Valve Bodies - Remanufactured - $674.48
      http://www.reamman.com/products/149-tf80sc.aspx

      Advantage European Auto Parts (Michigan) - Will Rebuild Your Valve Body - ~$600
      http://www.advantage-european.com/

      RevMax Converters - Rebuilt - $749.00
      https://revmaxconverters.com/product...ed-valve-body/

      Valve Body Direct - Remanufactured - Pricing Unknown
      http://www.valvebodydirect.com/aisin...valve-body.php

      Sonnax - Remanufactured - Pricing Unknown
      http://www.sonnax.com/parts/3986-rem...red-valve-body

      Before I ordered any of these, I would be absolutely sure to contact the vendor to verify correct fitment for your caR or V8.

      The dealer charge for replacing a valve body is 4.1 hours labor.


      Replacement Steps (S60R/V70R):
      Thanks Laird for the Walkthrough

      I removed the bumper cover, since that takes 5 minutes, this allows excellent access from below.
      Remove air guide, both if you have them.
      Remove the tranny coolant lines.
      Remove the air-box, fake battery cover and IC to TB tube.
      Remove front motor mount bolt (on top of mount)
      Remove the pump on the frame rail by removing two bots and the whole bracket.
      Put jack-stands under the rear sub-frame brackets and loosened the rear SF bolts.
      Floor jack with a block of wood under the engine, bit of tension.
      Removed front SF bolts to allow SF to sag out of the way.
      Drain fluid (save or measure)
      Remove VB cover (clean clean clean)
      Take a few pictures, even though it'd be hard to screw up the wiring.
      Don't lose the metal lock plate that goes with the top left sensor.
      8 bolts (10nm) and you will get a fair amount of fluid when you remove the bottom two bolts and internal cover plate.
      Clean tranny surface.
      Install (the new one) and ensure that everything is hooked up and tight. Don't forget to get the shift arm and link hooked up on top.
      Permatex (gasp) grey RTV $5.99 or the , "pick a manufacturer" RTV re-labeled as VOLVO, $$$$, your choice. Follow the directions. (Editor Note: Personally recommend Volvo Sealant)
      Put everything else back together except what's in your way of refilling and wait 24 hours.
      Fill and drive.
      Smile at yourself in the mirror and/or pat yourself on the back.
      (I would like input on the differences in how the job is done between models.)


      How to find the transmission serial #:

      On the R's, the transmission serial number can be found by looking behind the airbox below the intake tube. There's a metal tag on top of the transmission which has the serial number. It looks like this:



      There's a similar metal tag on top of the transmission of the V8's. Here's a photo which shows the location. It's taken while standing next to the driver's side wheel well of the XC90:
      ***Image Link Broken***

      Also, from this post you can find the transmission serial number on V8's by:

      "With a good flashlight on a cold engine compartment, stick your head over the near side of the brake fluid reservoir and look straight down.
      White sticker with the SN. Just toward the front of the sticker (toward front of car) is the metal plate with the same SN."



      Serial # Samplings (Model - Production Date - Serial # Prefix):
      2008 XC90 V8 Sport - 5/7/2008 - 08B
      2008 XC90 V8 - 10/?/2007 - 07E
      2007 S60R - 05/?/2007 - 07C
      2007 XC90 V8 Sport - 4/?/2007 - 07B
      2007 S80 V8 - 5/4/2007 - 07A
      2007 XC90 V8 - 4/?/2007 - 07A
      2007 S60R - 3/?/2007 - 07A
      2007 V70R - 3/?/2007 - 07A
      2007 XC90 V8 Sport - 3/9/2007 - 06M
      2007 V70R - 3/?/2007 - 06M
      2007 S80 V8 - 02/?/2007 - 06M
      2007 V70R - 2/?/2007 - 06L
      2007 V70R - 2/?/2007 - 06L
      2007 S60R - 1/?/2007 - 06L
      2007 S80 V8 - 1/?/2007 - 06L
      2007 S80 V8 - 12/?/2006 - 06K (Canadian)
      2007 S60R - 12/15/2006 - 06J
      PLEASE, HELP US FILL THIS GAP!
      2007 XC90 V8 Sport - 01/03/2007 - 06H
      2007 XC90 3.2L - 11/?/2006 - 06H
      2007 XC90 V8 - 11/27/2006 - 06G
      2007 XC90 V8 Sport - 11/22/2006 - 06G
      2007 S60R - 11/?/2006 - 06G
      2007 V70R - 11/?/2006 - 06G
      2007 XC90 - 10/?/2006 - 06G
      2007 S60R - 7/17/2006 - 06G
      2007 XC90 V8 - 11/?/2006 - 06F
      2007 V70R - 10/?/2006 - 06F
      2007 V70R - 8/?/2006 - 06C
      2007 XC90 V8 - 6/?/2006 - 06C
      2007 S80 V8 - 6/?/2006 - 05M (Sweden)
      2007 V70R - "March 2006" - Pre-06J (Waiting on exact info)
      2006 S60R - 3/16/2006 - 06A
      2006 S60R - 1/24/2006 - 05K
      2006 V70R - 9/?/2005 - 05G
      2006 V70R - 8/?/2005 - 05G

      (Please contribute to this record. I'd like to see if we can track down a definitive cutoff date.)
      Last edited by R-Pow3R3d; 04-30-2019 at 01:01 AM.
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    3. #2
      Member Body Massage's Avatar
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      I have an S80 V8 with that transmission. I've had the occasional weirdness with the shifts, but nothing like my dad's previous 06 S60R had. I wonder if part of it has to do with how the transmissions shifts between the two cars. The S80 is very lazy.
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    4. #3
      Moderator MvI_S60R's Avatar
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      2006-2008 TF-80SC Automatic Transmission Valve Body Issue & Serial Number Info

      Oh man... Mine starts with 06A on my 2006. I dont have any hard shifts but I do have a light jolt right before coming to a stop. After I flushed the fluid it calmed down more tho. CaR manufacture date is 3.16.2006
      Last edited by MvI_S60R; 03-22-2016 at 09:55 PM.
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    6. #4
      Member inteller's Avatar
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      Quote Originally Posted by MvI_S60R View Post
      Oh man... Mine starts with 06A on my 2006. I dont have any hard shifts but I do have a light jolt right before coming to a stop. After I flushed the fluid it calmed down more tho
      that's just masking the problem.
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    7. #5
      Member StealthyS60R's Avatar
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      If its a wear issue instead of a sticking issue, some new, non-broken-down oil with better viscosity is a good band aid that might buy you time till thicker lube can no longer correct it.

      If its sticking, some fresh lube may help to dissolve some of the varnish and buy you some time as well.

      Either way, if I was one of you guys with slushbox issues I'd sure as hell try some new lube to see how that works before I'd dig in to swap out an expensive throttle body.

    8. #6
      Member inteller's Avatar
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      a defective part was installed from the factory, everything else short of replacement is a band-aid
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    9. #7
      Moderator MvI_S60R's Avatar
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      Quote Originally Posted by inteller View Post
      that's just masking the problem.
      Exactly the point. I would like to get as much as I can out of this valve body before it really starts to mess up
      06 S60R M66 | Blurple w/Sport Kit | 19" FC04A's | KW V2 | Hilton Stage 2.25 | DevilsOwn W/M | IPD:3" Oval Catless Exhaust | HD CA's | Adj. Toe Bars | 28mm Rear Sway | Snabb: Turbo Intake | Airbox | Big FMIC | Synapse DV | Colder Plugs | Strut Brace | Delrin S.B.'s | 20mm Spacers | 90mm Studs | Fancy Rotors | A-Pillar Boost/Trans/Volt Gauges | ScanGauge II | All Lights HID | My BUILD THREAD

    10. #8
      Member inteller's Avatar
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      and starts to mess other things up...
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    11. #9
      Member CKAVolvo's Avatar
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      I had a Valve body rebuild kit installed and it really mad a difference, as the flushing is just a band aid. I'm also in the process of trying to find a way to build the TF80 without going through Level 10, which has not had a lot of positive reviews. I have been on the phone with all of the above sources for the valve body. It seams there are really only three manufactures of the parts in the USA. Will update here when we find out how well it holds up with the new higher HP motor going in.

      Would like to here if anyone has done any upgrades to this transmission, as most of the cars this transmission cam in are not most built, think Ford Fusion, and 500
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    12. #10
      Global Moderator R-Pow3R3d's Avatar
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      Quote Originally Posted by CKAVolvo View Post
      I had a Valve body rebuild kit installed and it really mad a difference, as the flushing is just a band aid. I'm also in the process of trying to find a way to build the TF80 without going through Level 10, which has not had a lot of positive reviews. I have been on the phone with all of the above sources for the valve body. It seams there are really only three manufactures of the parts in the USA. Will update here when we find out how well it holds up with the new higher HP motor going in.

      Would like to here if anyone has done any upgrades to this transmission, as most of the cars this transmission cam in are not most built, think Ford Fusion, and 500
      Have any info on what it takes to swap out?

      I included the wiki information about the transmission being designed for 325 ft-lb because almost any tuning will drive the R above that number but we don't hear much (or anything?) about physical breakdowns of the transmission.
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    13. #11
      Member Hounddogger's Avatar
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      Doesn't the P* use the same tranny? And they make 500nm... I doubt Volvo/AW would spend the R&D to beef up a transmission they're phasing out.
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    14. #12
      Member Body Massage's Avatar
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      Quote Originally Posted by Hounddogger View Post
      Doesn't the P* use the same tranny? And they make 500nm... I doubt Volvo/AW would spend the R&D to beef up a transmission they're phasing out.
      I'm sure it's the same transmission, but with different internals.
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    15. #13
      Member EricTheRed's Avatar
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      It's a revamped trans with a more efficient cooling system. And even with that it's pretty much maxed out on the P*

      Sent from my XT1575 using Tapatalk
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    16. #14
      Member EricTheRed's Avatar
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      Quote Originally Posted by CKAVolvo View Post
      I had a Valve body rebuild kit installed and it really mad a difference, as the flushing is just a band aid. I'm also in the process of trying to find a way to build the TF80 without going through Level 10, which has not had a lot of positive reviews. I have been on the phone with all of the above sources for the valve body. It seams there are really only three manufactures of the parts in the USA. Will update here when we find out how well it holds up with the new higher HP motor going in.

      Would like to here if anyone has done any upgrades to this transmission, as most of the cars this transmission cam in are not most built, think Ford Fusion, and 500
      Did you get that transgo kit installed? If I remember right it was only around $100ish. It take that over an iffy rebuilt

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      Member inteller's Avatar
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      Quote Originally Posted by Body Massage View Post
      I'm sure it's the same transmission, but with different internals.
      it is not a TF-80SC. It comes up as a variant in VIDA. like TF-81 or something...
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      Quote Originally Posted by EricTheRed View Post
      Did you get that transgo kit installed? If I remember right it was only around $100ish. It take that over an iffy rebuilt

      Sent from my XT1575 using Tapatalk
      I had ARD do it last year, They used the AW factory rebuild and this is what they did

      Shift solenoid kit. Includes SLT, TCC, B1, C1, C2, C3 1 ( PArts wich were just under $600.00)
      Install shift solenoid kit 4.20 hours Labor

      Before the upgrade I was able to brake boost to about 4K then go, After I can only get it to 2500 rpm and it will hold it there. This was one of the best upgrades I have done to the car. I will post what we find in the hopes of saving people some money. I can say STAY away from the Level 10 ECu flash. A total waste of 200.00 . When I called them today I got no details just 'Sure our transmission will hold 500 awhp "
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      Member EricTheRed's Avatar
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      So you purchased two kits essentially? The AW and transgo? I'm just trying to plan for the worst and I've seen alot of so-so reviews from rebuilders

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      Global Moderator R-Pow3R3d's Avatar
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      Anyone who has a late-06, 07, or early-08 of any vehicle which has the TF-80SC, I'd really like to add your production date and transmission serial to the list to see if we can track down a cut-off date for the bad valve bodies. Thanks for those I've received so far.
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    21. #19
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      The production date of my 07 SR was around March 2006. I've checked the transmission serial and it does not have the updated valve body. And the caR drives like it, too. Looks like it's about a grand to get this issue fixed.


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    22. #20
      Quote Originally Posted by CKAVolvo View Post
      I had ARD do it last year, They used the AW factory rebuild and this is what they did

      Shift solenoid kit. Includes SLT, TCC, B1, C1, C2, C3 1 ( PArts wich were just under $600.00)
      Install shift solenoid kit 4.20 hours Labor

      Before the upgrade I was able to brake boost to about 4K then go, After I can only get it to 2500 rpm and it will hold it there. This was one of the best upgrades I have done to the car. I will post what we find in the hopes of saving people some money. I can say STAY away from the Level 10 ECu flash. A total waste of 200.00 . When I called them today I got no details just 'Sure our transmission will hold 500 awhp "
      Ron we have talked about level ten before. I wouldn't give them a cent of my money. It was a LONG time ago but they got busted "building" the W4A33 in the auto AWD Talon, laser, and Eclipse. They would charge like $5,000 for a full trans with converter that was supposed to be "fully built" but in the end they were just doing a basic OEM level stock rebuild. They only thing that saved their asses in this case is that particular trans is fairly stout even from the factory.

      My thoughts on the Volvo 6 speed GT auto trans are that it is pretty stout trans, way better than the 5 speed auto that it replaced. I'm not sure about if anyone actually makes a good billet high stall converter, we may be stuck with a re stalled stock unit other than that and having to do the VB fix these auto boxes seem to take a bunch of abuse.

      If you wanted to go full balls out trans build you could do a high quality OEM rebuild like the Sonax stuff, and cryogenically treat the hard parts along with shot peening them or WPC process them. You could have a serious trans with out any fancy billet replacement parts. But I would not go down that path until I blew up a stock trans first.
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    23. #21
      Member Hounddogger's Avatar
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      At that point I'd be looking for a wet clutch DCT to drop in... And adapt its mechatronic unit.
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      Quote Originally Posted by R-Pow3R3d View Post
      Anyone who has a late-06, 07, or early-08 of any vehicle which has the TF-80SC, I'd really like to add your production date and transmission serial to the list to see if we can track down a cut-off date for the bad valve bodies. Thanks for those I've received so far.
      I was scrolling down to read others' contributions (and slushbrained non-contribution opinions) before doing precisely that:

      SR Production date: 1/07 *
      Transmission prefix: 06L **

      * I've 'forever' believed it to be 1/31/07, but I'm unsure where I'd gotten the day-of-month from; all it says on the B pillar is 1/07
      ** that's a big part of why I chose this caR, not realizing that late build 07s had been saddled with steel control arms...

      The 06J (from the TNN) means October 2006 (J is the 10th letter...). My 06L means December 2006. So there was a month+ lag between build dates of my transmission and caR. I once checked a 3/[17?]/07 built VR and that seemed to hold true for it also (iirc it was an 07A).

      Quote Originally Posted by spinall4 View Post
      My thoughts on the Volvo 6 speed GT auto trans are that it is pretty stout trans.
      I agree; I think the GT is most stout part of the entire caR, not just the drivetrain.

      Quote Originally Posted by freakstrike View Post
      The production date of my 07 SR was around March 2006. I've checked the transmission serial and it does not have the updated valve body.
      I did not know that '07s were built so early in 2006.

    25. #23
      Junior Member MtnBik3R's Avatar
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      SR prod date: 3/07, structure week from vida vehicle details (general attributes): 200712 or 12th week of 2007

      trans serial#: 07A3803690
      Last edited by MtnBik3R; 04-14-2016 at 01:59 AM.
      mine's a fixer-upper

      2007 S60R Ti grey, nordkap GT

    26. #24
      Global Moderator R-Pow3R3d's Avatar
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      Thank you guys for the additions! Keep them coming. For anyone wondering about production date, the easiest source I've found is the vehicle's CarFax report.

      Quote Originally Posted by 4C victim View Post
      The 06J (from the TNN) means October 2006 (J is the 10th letter...). My 06L means December 2006. So there was a month+ lag between build dates of my transmission and caR. I once checked a 3/[17?]/07 built VR and that seemed to hold true for it also (iirc it was an 07A).
      Some cases that seems to be correct, but others there's a huge difference between the letter and the month of production. In the case of the two 2007 V8s on my list, there's a 4 month difference based on your understanding of the system. Also, to add a bit more weird to it, another 2007 V8 has 06M and M is the 13th letter. Maybe they skipped I? These are all the reasons I want to assemble this list so that we can finally get to the bottom of the question.
      Last edited by R-Pow3R3d; 03-25-2016 at 02:10 PM.
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    27. #25
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      So, dealer charges 4.1 hrs for valve body swap, which means I can do it myself it 12, right?

      Does anyone know what all is involved? I've done a valve body swap in a GM 4spd Auto from the 80's and it was more or less a drop in. Does the trans have to come off the car to do it? Possible to do this job on jack stands/ramps without a proper lift?

    28. #26
      Member EricTheRed's Avatar
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      Quote Originally Posted by NorthwestMoose View Post
      So, dealer charges 4.1 hrs for valve body swap, which means I can do it myself it 12, right?

      Does anyone know what all is involved? I've done a valve body swap in a GM 4spd Auto from the 80's and it was more or less a drop in. Does the trans have to come off the car to do it? Possible to do this job on jack stands/ramps without a proper lift?
      Some have done it themselves but I don't think there is a clear step by step write-up for it

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    29. #27
      Quote Originally Posted by Hounddogger View Post
      At that point I'd be looking for a wet clutch DCT to drop in... And adapt its mechatronic unit.
      DCT trans looks good on paper, but I'm just not ready to own one yet. If you look at the Upkeep costs on them, it's crazy. The Mitsubishi one is supposed to have the fluid changed like every 10,000 mi and it's only supposed to be the Mitsubishi spec fluid that is crazy expensive. 6 liters, at $335 in just fluid. All of the other units are similar. I will stick with a normal Torque converter automatic trans. The 6 speed unit in the later R's is a pretty nice trans. Plenty of gears, shifts are quick and with the car switched into Advanced on the 4C it will stay in gear longer, and downshift sooner.

      It's a far cry from the lazy slow 4 speed auto trans from the 90's.







      Quote Originally Posted by NorthwestMoose View Post
      So, dealer charges 4.1 hrs for valve body swap, which means I can do it myself it 12, right?

      Does anyone know what all is involved? I've done a valve body swap in a GM 4spd Auto from the 80's and it was more or less a drop in. Does the trans have to come off the car to do it? Possible to do this job on jack stands/ramps without a proper lift?
      I know for sure the trans pan it's self is not in the bottom of the trans like your probably used to. It kinda sits at at a 45 degree angle towards the front of the car. I want to say you have to at least lower the sub frame some to change out the valve body, but can't remember for sure.

      It can't be too hard to DIY this VB, I will be doing it my self if mine ever gets bad. I have done a shift kit before on the W4A33 in the DSM, that was not bad at all. Just have to be patient so things don't get broken.
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    30. #28
      Member gabrielef's Avatar
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      I have an '07 VR GT, mfr Nov '06, transmission S/N 06G380280
      I do hope that after all this discreditable shuffling we may be taken into action. It has a wonderful way of reconciling a man with himself: and with everybody else, sometimes. - 1st Lt. James Dillon
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    31. #29
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      Quote Originally Posted by R-Pow3R3d View Post
      Thank you guys for the additions! Keep them coming. For anyone wondering about production date, the easiest source I've found is the vehicle's CarFax report.
      Yup, that's there I'd gotten/remembered the exact date from (thanks), but it'd been so long since I'd looked at it that it took me a while to remember/confirm...


      Quote Originally Posted by R-Pow3R3d View Post
      Some cases that seems to be correct, but others there's a huge difference between the letter and the month of production. In the case of the two 2007 V8s on my list, there's a 4 month difference based on your understanding of the system. Also, to add a bit more weird to it, another 2007 V8 has 06M and M is the 13th letter. Maybe they skipped I? These are all the reasons I want to assemble this list so that we can finally get to the bottom of the question.
      As long as the "huge difference" didn't "go backwards in time", that just means that transmission production continued while vehicle production lagged, and a stockpile of transmissions had built up... So a 4-month lag (dis)proves nothing.

      As for that 06M: while it's true that it only takes one counter-example to disprove any theory, it's also true that people sometimes who know that will reject a valid theory based upon a single anomalous data point. (And sometimes some people -- for eg, Judy Wood -- will do so on purpose, in order to disinform...)

      Perhaps Aisin can explain that bakers-dozen "06M"...? (?extra production week squeezd in during the normally-off last week of the year?) An '07 R built in February 2007, if there weRe any, might help establish that that there is no letter between (2006) "L" and (2007) "A", and that that (2006) "M" was some sort of one-time anomaly.

      If you/we can find a better explanation, good for you (and for all of us). 'til then (or if we find some backwards-in-time units that were definitely not replacements), I'll be sticking with my YYM 'understanding' to 'decode' the date of the AW SNs, and just scratch my head whenever (if) I (ever) see an "M".


      PS: maybe that "M" is a one-time 2006 thang, indicating units that had their VB updated/replaced retroactively, late in 2006, after the unit was first assembled, but before it left the AW factory?
      Last edited by 4C victim; 03-26-2016 at 06:05 PM. Reason: PS possibility pondering

    32. #30
      Global Moderator R-Pow3R3d's Avatar
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      Quote Originally Posted by 4C victim View Post


      Yup, that's there I'd gotten/remembered the exact date from (thanks), but it'd been so long since I'd looked at it that it took me a while to remember/confirm...

      As long as the "huge difference" didn't "go backwards in time", that just means that transmission production continued while vehicle production lagged, and a stockpile of transmissions had built up... So a 4-month lag (dis)proves nothing.

      As for that 06M: while it's true that it only takes one counter-example to disprove any theory, it's also true that people sometimes who know that will reject a valid theory based upon a single anomalous data point. (And sometimes some people -- for eg, Judy Wood -- will do so on purpose, in order to disinform...)

      Perhaps Aisin can explain that bakers-dozen "06M"...? (?extra production week squeezd in during the normally-off last week of the year?) An '07 R built in February 2007, if there weRe any, might help establish that that there is no letter between (2006) "L" and (2007) "A", and that that (2006) "M" was some sort of one-time anomaly.

      If you/we can find a better explanation, good for you (and for all of us). 'til then (or if we find some backwards-in-time units that were definitely not replacements), I'll be sticking with my YYM 'understanding' to 'decode' the date of the AW SNs, and just scratch my head whenever (if) I (ever) see an "M".


      PS: maybe that "M" is a one-time 2006 thang, indicating units that had their VB updated/replaced retroactively, late in 2006, after the unit was first assembled, but before it left the AW factory?
      Yeah, I'm definitely not trying to disprove your theory. If anything, I'm trying to prove your theory...or any theory. I just want to know the answer. LOL

      I suspect what you've presented is accurate. My real goal is to just keep collecting and collecting data points until we finally prove out the answer.

      My other goal is to (finally) bring this issue and its overwhelming reach to light. Years ago I thought this was just a few early R's and that I got unlucky. I also previously believed this was just an issue that could "possibly" affect a vehicle before 06J. Years later (and MANY threads read) I've realized this issue affected every unit within multiple model lines for multiple years. There's a lot of vehicles that will, at some point in their life, be affected by this. There's a reason several shops have set themselves up to rebuild and update these units. They've realized the scope and now, we finally are realizing it as well.

      Thanks again to all who have submitted data points and KEEP THEM COMING!
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    33. #31
      Member CKAVolvo's Avatar
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      Quote Originally Posted by R-Pow3R3d View Post
      Yeah, I'm definitely not trying to disprove your theory. If anything, I'm trying to prove your theory...or any theory. I just want to know the answer. LOL

      I suspect what you've presented is accurate. My real goal is to just keep collecting and collecting data points until we finally prove out the answer.

      My other goal is to (finally) bring this issue and its overwhelming reach to light. Years ago I thought this was just a few early R's and that I got unlucky. I also previously believed this was just an issue that could "possibly" affect a vehicle before 06J. Years later (and MANY threads read) I've realized this issue affected every unit within multiple model lines for multiple years. There's a lot of vehicles that will, at some point in their life, be affected by this. There's a reason several shops have set themselves up to rebuild and update these units. They've realized the scope and now, we finally are realizing it as well.

      Thanks again to all who have submitted data points and KEEP THEM COMING!
      I would be very interested to know the shops that update these. Been looking for a specialty custom shop.


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    34. #32
      Junior Member Heretic's Avatar
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      06 VR here. Manufactured 8/05. Trans is 05G. It has the first symptom of the TNN. It's a flare that really feels like another normal upshift. I like to think I got the rare 7 speed version.

      A full fluid change didn't make much of a difference either.
      06 SONIC GOBI VR GT

    35. #33
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      Can the valve body issue cause damage to the transmission or any other component over time, or is it pretty much a benign issue that just affects how the car drives?

    36. #34
      Moderator MvI_S60R's Avatar
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      Quote Originally Posted by freakstrike View Post
      Can the valve body issue cause damage to the transmission or any other component over time, or is it pretty much a benign issue that just affects how the car drives?
      I wouldn't think... I am absolutely no transmission expert but valve body issues can come by crap gumming up on the valve ways and restricts fluid flow. Unless something comes loose, clutch packs and such shouldnt be affected
      06 S60R M66 | Blurple w/Sport Kit | 19" FC04A's | KW V2 | Hilton Stage 2.25 | DevilsOwn W/M | IPD:3" Oval Catless Exhaust | HD CA's | Adj. Toe Bars | 28mm Rear Sway | Snabb: Turbo Intake | Airbox | Big FMIC | Synapse DV | Colder Plugs | Strut Brace | Delrin S.B.'s | 20mm Spacers | 90mm Studs | Fancy Rotors | A-Pillar Boost/Trans/Volt Gauges | ScanGauge II | All Lights HID | My BUILD THREAD

    37. #35
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      My 07 SR was manufactured 17 July 2006. It was delivered to the buyer 19 January 2007. The TF-SC80 begins with 06G.

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