: 4T80E Modification



AJxtcman
05-17-07, 07:00 AM
I have Shift Kits for 4T80E.

They have been used for years without any DTC's or broken parts.
The kit can be installed in minutes in all 4T80E trans.
The only hang up with that is no 2-3 shift improvement. 2-3 shift upgrade is done with the trans out.
This will correct a known internal failure with the Accumulator Assembly.

This shift kit is designed for 4T80E transmissions. This kit allows the user 3 choices of firmness. This is accomplished by the given combinations of spacers used in conjunction with the new springs included in this kit. You will re-use your pan, and seperator plate gasket. please note their quality, they were designed to be re-used several times. I recommend replacing the serperator plate gasket. It is another known problem (only 2000)

PLEASE NOTE: All our test vehicles equipped with this maximum level chirped the tires during shifts, but this is not a guarantee that your vehicle will do the same as worn clutches, weak pumps, etc. could induce slippage. Increasing shift firmness will not cause damage or harm. The performance shift mode and engine/trans computer mods will continue to function as designed, although their will be an overall increase in shift firmness, even at light or part throttle.

NOT MY PCM PROGRAM, BUT 93 TO 95 AFTERMARKET PROMS.
WE STRONGLY SUGGEST THAT IF USING AN AFTERMARKET PCM PROGRAM WITH TRANSMISSION SHIFT ENHANCEMENT THAT YOU ONLY USE THE MEDIUM LEVEL OR LESS FROM THIS SHIFT KIT. USING THE MAXIMUM LEVEL IN THIS KIT ALONG WITH ANY ELECTRONIC TRANSMISSION ENHANCEMENT WILL RESULT IN A BLOWN DRIVE CHAIN INSIDE THE TRANSMISSION. :hammer: We personally enjoy using just the maximum level in this shift kit with no other shift enhancements.

:worship:

urbanski
05-17-07, 09:09 AM
you may wnat to consider becoming a vendor if you're trying to sell this product. thanks
http://www.cadillacforums.com/subscribe.html

AJxtcman
05-17-07, 09:57 AM
I have every intention. I have not sold anything yet. I have the cart, but no horse. When the horse arrives I will sign up. I will need the extras that go along with being a vendor. Thanks

eldorado1
05-17-07, 10:08 AM
Cut the pressure solenoid power wire and you've got all the tire chirping shifts you can handle. Cost: free.

msta293412
05-17-07, 10:51 AM
Eldorado1, are you sure?...and I have a 2001 sts, does that apply?...also what does that do EXACTLY do?

AJxtcman
05-17-07, 11:06 AM
ALL 4T80E trans.
shorten shift time and firmness.
$20

ejguillot
05-17-07, 01:41 PM
Interesting. How hard are they to install (assuming an owner that can follow an FSM, but with no formal training)? Can you also supply the serperator plate gasket (at added cost)? I have a 2000 STS.

fubar569
05-18-07, 08:49 AM
Eldorado1, are you sure?...and I have a 2001 sts, does that apply?...also what does that do EXACTLY do?

the 4T80-E is set up that if the solenoid shorts or otherwise fails, it defaults to maximum line pressure in order to save the transmission. imagine if it shorted and went to zero line pressure...yep that'd be bad...

all this mod involves is installing a switch in line with the ground wire for the pressure control solenoid...

when you break the ground wire, it cuts the power and defaults the trans to max pressure...thats it...nothing else...

however i'd imagine that i wouldnt try this on a transmission that isnt 100% healthy as it may cause other parts to exhibit weakness and/or fail like the pump, etc...also places ALOT more stress on other driveline components...

eldorado1 has a version of this mod on his fiero. he built a paddleshift TCM for his 4T80-E with the power going to that solenoid tied to throttle position. at WOT, the solenoid effectively sees 0 power, so at WOT he has max pressure, and it is linear in between...least thats how i understood it...very trick setup...

msta293412
05-18-07, 09:00 AM
Thanks for answering FUBAR( are you military?), Anyways, eldo1, is pretty slick, I like that idea. If I cut the wire, could I splice it back together if something goes wrong or I dont like it? By the way my trans is 110%, only 40,000 miles on this STS (babied too) Any response would be appreciated.

fubar569
05-18-07, 09:16 AM
Thanks for answering FUBAR( are you military?), Anyways, eldo1, is pretty slick, I like that idea. If I cut the wire, could I splice it back together if something goes wrong or I dont like it? By the way my trans is 110%, only 40,000 miles on this STS (babied too) Any response would be appreciated.

nah i got my name from the movie Tango & Cash...when they taped the grenade in the guys mouth...awesome flick...

i prefer the switch in the passenger compartment method (run wires from the connector up into a switch under/around the dash)...that way if you don't like it, flick the switch back on and forget about it...but yes it is 100% reversible...and i dont believe you'd have an issue...but as always mod at your own risk! :thumbsup:

AJxtcman
05-18-07, 10:14 AM
Cut the wire and the trans will fail!
Cut the wire and the PCM will do the following.

The PCM does not illuminate the malfunction indicator lamp (MIL).
SERVICE TRANSMISSION displays on the driver information center (DIC).
The PCM commands maximum line pressure.
The PCM freezes transmission adapt functions.
The PCM records the operating conditions when the Conditions for Setting the DTC are met. The PCM stores this information as Failure Records.
The PCM stores DTC P0748 in PCM history.


The PCM will be in reduced torque mode
.
.

AJxtcman
05-18-07, 10:18 AM
I would say about 4 to 5 hours no hoist.
With a hoist about 1 hour if all the parts in the trans are ok. If you find two known problems the first will take about 20 minutes to fix and the second part will need to be replaced.

eldorado1
05-18-07, 10:50 AM
The PCM will be in reduced torque mode
.
.

In my 94 service manual, it says "Torque Management will be disabled"

AJxtcman
05-18-07, 11:37 AM
Hmm
I will start a new thread

ejguillot
05-18-07, 05:16 PM
I would say about 4 to 5 hours no hoist.
With a hoist about 1 hour if all the parts in the trans are ok. If you find two known problems the first will take about 20 minutes to fix and the second part will need to be replaced.

That's not so bad. What are the 2 known problems, and can you tell me how expensive the second part would be?

102K on the transmission, I'm thinking that (never mind the lifetime fluid thing) this would be a good time to drop the pan, do a fluid and filter swap, and install the shift kit too. Does your kit come with instructions?

AJxtcman
05-18-07, 07:04 PM
That's not so bad. What are the 2 known problems, and can you tell me how expensive the second part would be?

102K on the transmission, I'm thinking that (never mind the lifetime fluid thing) this would be a good time to drop the pan, do a fluid and filter swap, and install the shift kit too. Does your kit come with instructions?


First problem with all 4T80E trans
This is a warpped REV/FOW Accumalator cover.
This can be Identified by a piece of gasket in the trans pan when you remove the pan.
This cover will need to be sanded flat. Takes 5 minutes with 180 to 220 grit.

AJxtcman
05-18-07, 07:30 PM
Second problem
TSB is just for 00 but I find this on some 2000 to 04 trans.

Subject: Slipping in Fourth Gear or No Fourth Gear, DTC P0734 Set (Replace Lower Control Valve Body Channel Plate and Gasket) #01-07-30-005A - (05/17/2001)
I have found when I drop the pan little pieces of burnt band in the pan. Very thin and black.
If you do not find this it is good, but you need to look at the drum. If it looks like it has been hot the channel plate is warped

Cause
This condition may be caused by a warped lower control valve body channel plate (900) which allows the loss of 4th band fluid apply pressure.


The channel plate can be replaced by itself if NO DTC P0734 or fourth gear slip has been felt.

If the drum is smoked and the band is worn down (metal on metal) the trans needs to be removed and repaired!!

24200434
Plate, Lower Control Valve Assembly, Channel


24213957
Plate and Gasket Assembly, Spacer

You will see in the picture what to look for. The drum needs to look shiny like a brake rotor. No burnt spots.

AJxtcman
07-10-07, 05:21 AM
Garage Shift concerns.
The accumulator is shown.
http://216.182.211.32/techlink/images/issues/arcv_pdf/4_01_e.pdf

AJxtcman
07-10-07, 08:17 PM
Quick list of known issues
.
Subject:
No Power on Heavy Acceleration or 1-2 Shift Concerns - Delays, Slips, Flares, DTC P0731 or P0732 Set (Replace Transmission Fluid Pressure Switch Assembly or Lower Control Valve Body Assembly) #01-07-30-009B - (02/06/2002)
Models:
2000-2002 Cadillac DeVille, Eldorado, Seville
2001-2002 Oldsmobile Aurora
...........
Subject:
Firm Transmission Shifts, Shudder/Chuggle, Transmission Wont Downshift on Deceleration, Service Engine Soon Light Illuminated, DTC P0742 Set (Perform Diagnostics, Replace TCC PWM Solenoid) #02-07-30-039F - (07/27/2005)
Models:
Customers with 4T80E transaxles may also comment on a "bump" feeling at approximately 61-68 km/h (38-42 mph) when they lift and then tip into the throttle. There may also be a concern of whine noise in 3rd or 4th gear with or without the Service Engine Soon light/message displayed and with DTC P0742 set.
.
...........
Subject:
Info - Automatic Transmission Shift, Engine Driveability Concerns or Service Engine Soon (SES) Light On as a Result of the Use of an Excessively/Over-Oiled Aftermarket, Reusable Air Filter #04-07-30-013B - (02/01/2007)
.
...........
Subject:
Slipping in Fourth Gear or No Fourth Gear, DTC P0734 Set (Replace Lower Control Valve Body Channel Plate and Gasket) #01-07-30-005A - (05/17/2001)
Models:
2000 Cadillac DeVille, Eldorado, Seville
2001 Oldsmobile Aurora
.
...........
Subject:
Whine/Hum Noise From Automatic Transaxle Between 20 mph - 50 mph (32-80 km/h) with Light Throttle Applications (Replace Final Drive Assembly Kit) #04-07-30-003 - (01/21/2004)
Models:
2000-2001 Cadillac Eldorado
2000-2002 Cadillac DeVille, Seville
with Transaxle Auto 4 SPD, 4T80E, Electronic Conv Clutch (RPO MH1) and Ratio Transaxle Final Drive 3.11 (RPO FV3) or Ratio Transaxle Final Drive 3.71 (RPO FV4)
.
...........
Subject:
Service Engine Soon (SES) Light On, Diagnostic Trouble Code (DTC) P0741, Torque Converter Clutch (TCC) Excessive Slip, Transaxle Chuggle, Slip/Surge (Inspect/Replace Internal Transaxle Components) #04-07-30-034 - (08/06/2004)
Models:
1998-2002 Cadillac Eldorado
1998-2004 Cadillac Seville
1999-2004 Cadillac DeVille
2000-2003 Oldsmobile Aurora
.
...........

Subject:
4T80-E Automatic Transaxle Buzz Noise in Reverse Cold and/or Deceleration and/or 3-2 Downshift (Inspect/Replace Accumulator Retaining Ring/Clip) #05-07-30-029 - (10/26/2005)
Models:
2002 and Prior Cadillac Eldorado
2005 and Prior Cadillac Deville
2003 and Prior Oldsmobile Aurora
2005 and Prior Pontiac Bonneville
.
...........
Subject:
Click Noise when Braking or on Coast Down; Buzz Noise when Reverse Engaged; Tick Noise during 2-3, 3-2 Shifts - keywords 4T80E accumulator clip cold cover decelerate down MH1 pin side upshift #PIP3594 - (10/20/2005)
Models:
1996-2004 Cadillac DeVille, Eldorado, Seville
1996-2003 Oldsmobile Aurora
2004 Pontiac Bonneville
.
...........
Subject:
Delayed Engagement Into Reverse (Replace the Reverse Accumulator Housing Assembly) #01-07-30-008 - (02/16/2001)
Models:
2001 Cadillac DeVille, Eldorado, Seville
2001 Oldsmobile Aurora
.
...........
Subject:
Harsh Reverse Engagement, 1st Shift of the Day (Replace Upper Control Valve Body Spacer Plate Gasket) #01-07-30-019 - (04/23/2001)
Models:
2001 Cadillac DeVille, Eldorado, Seville
2001 Oldsmobile Aurora
.
..

Maxb49
07-10-07, 09:20 PM
Are we looking at 1/4 mile improvements?

codewize
07-10-07, 10:08 PM
AJ, what do you know about this part of that

Whine/Hum Noise From Automatic Transaxle Between 20 mph - 50 mph (32-80 km/h) with Light Throttle Applications (Replace Final Drive Assembly Kit) #04-07-30-003 - (01/21/2004)
Models:
2000-2001 Cadillac Eldorado
2000-2002 Cadillac DeVille, Seville
with Transaxle Auto 4 SPD, 4T80E, Electronic Conv Clutch (RPO MH1) and Ratio Transaxle Final Drive 3.11 (RPO FV3) or Ratio Transaxle Final Drive 3.71 (RPO FV4)

After my trans was rebuilt I have what I want to call a whine. It sounds like a standard at low speeds. It's like I can hear the trans turning. Does that make sense?
At hi speeds (above 65) it's a high pitch whine. This condition did not exist before the rebuild but the trans guy says it's normal.

AJxtcman
07-10-07, 10:22 PM
AJ, what do you know about this part of that

Whine/Hum Noise From Automatic Transaxle Between 20 mph - 50 mph (32-80 km/h) with Light Throttle Applications (Replace Final Drive Assembly Kit) #04-07-30-003 - (01/21/2004)
Models:
2000-2001 Cadillac Eldorado
2000-2002 Cadillac DeVille, Seville
with Transaxle Auto 4 SPD, 4T80E, Electronic Conv Clutch (RPO MH1) and Ratio Transaxle Final Drive 3.11 (RPO FV3) or Ratio Transaxle Final Drive 3.71 (RPO FV4)

After my trans was rebuilt I have what I want to call a whine. It sounds like a standard at low speeds. It's like I can hear the trans turning. Does that make sense?
At hi speeds (above 65) it's a high pitch whine. This condition did not exist before the rebuild but the trans guy says it's normal.

How many miles on it since the rebuild?

codewize
07-10-07, 10:28 PM
At this point, about 5k It's done it since day 1


How many miles on it since the rebuild?

AJxtcman
07-10-07, 11:04 PM
At this point, about 5k It's done it since day 1

Either a shim/thrust washer is not in or a thrust bearing is in backwards would be my guess.
The thrust washer I am thinking of is in the final drive. #111 or #117
The other possibility would be any BRG you can see how they are shown as direction to be installed
FIGURE Bushings, Bearings and Washers(c)
32879

codewize
07-10-07, 11:57 PM
What is BRG ?

AJxtcman
07-11-07, 12:01 AM
What is BRG ?
bearing

I have to document so much we have abbreviations for all sorts of words.

AJxtcman
07-11-07, 12:03 AM
32885
(102) Final Drive Sun Gear/Final Drive Carrier Thrust Bearing
(111) Right Differential Thrust Washer
(117) Left Differential Thrust Washer
(124) Case Extension Bushing
(132) Thrust Bearing Assembly
(132) Thrust Bearing Assembly
(132) Thrust Bearing Assembly
(133) Differential Carrier/Case Extension Selective Thrust Washer
(208) Oil Pump Driven Shaft Thrust Washer
(401) Converter Hub Bushing
(402) Front Stator Shaft Bushing
(408) Ball Bearing (2)
(417) Thrust Bearing
(419) Oil Transfer Sleeve
(436) Support/Reverse Clutch Thrust Washer
(440) Thrust Bearing
(502) Small Bushing
(503) Large Bushing
(520) 2nd Clutch Outer Race Washer
(521) Thrust Bearing
(522) Driven Sprocket Support Selective Thrust Washer
(602) Input Shaft Bushing
(603) Input Shaft/Oil Transfer Sleeve
(615) Input Shaft/3rd Hub Thrust Washer
(618) Hub Bushing
(619) Thrust Bearing Assembly
(622) Reaction Sun Gear Bushing
(710) Thrust Bearing Assembly
(713) Flange to Outer Race Thrust Washer
(718) Flange/Forward Clutch Housing Thrust Bearing
(720) Race/Coast Clutch Hub Thrust Washer
(723) Input Flange Bushing
(803) Small Housing Bushing
(804) Large Housing Bushing
(824) Oil Transfer Sleeve
(825) Left Support/Sun Shaft Bushing
(826) Right Support/Sun Shaft Bushing
(832) Forward Clutch Support/Park Gear Thrust Bearing

AJxtcman
07-28-07, 06:42 PM
:postcount:
I just needed to bring this to the top

Seven1
07-29-07, 06:21 PM
AJxtcman, please PM me some ordering details for your tranny kit. I have a 93 Seville STS. Thanks.

GizmoQ
09-18-07, 01:06 AM
ALL 4T80E trans.
shorten shift time and firmness.
$20

I think I'll take a medium off your hands, send me PM with details.

AJxtcman
09-18-07, 06:59 AM
I just got them this week.
This is great,
I have a little more to do before I can send them out. I spent about 2 hrs on it yesterday and I should have it done by 8 am this morning.

msta293412
09-19-07, 10:34 AM
Ill take a medium too....pm me...

AJxtcman
09-19-07, 08:11 PM
Give me just a little more time. I had a break through on my VTD problem. I had let it sit after I got the shift kit parts and then had a thought on the PCM. I went back to the PCM and it worked.
I have spent ever spare moment on the PCM project this week other than Monday and that was with the shift kits. I just need to look at the parts and put it all together

AJxtcman
09-23-07, 12:09 PM
I got them all handled on friday.
I want $25 for the kit.
I have a fully assembled accumalator I would want a $200 for with a $150 refundable core charge on it.

You will need one or two more parts
24200434 -- lower Channel Plate, GM LIST: $143.91

24213957 -- Plate and Gasket Assembly, GM LIST: $22.09

http://i224.photobucket.com/albums/dd25/AJxtcman/759464.gif

The channel plate is only supposed to be bad in 00 and 01. I checked an 03 and it was warpped also. I used a straight edge and a sanding block to flatten it. It was very quick because it just warps in one small area on one end.
.
For a Do It Yourselfer it will run under $45 + fluid. 7.5 quarts max.
If you need that channel plate figure about $120 to $150 additional.

AJxtcman
09-23-07, 02:38 PM
http://i224.photobucket.com/albums/dd25/AJxtcman/HPIM3235.jpg
http://i224.photobucket.com/albums/dd25/AJxtcman/HPIM3237-1.jpg

GizmoQ
10-01-07, 02:42 AM
Hey AJ I thought you were bringing a shift kit for me yesterday?

AJxtcman
10-01-07, 07:39 AM
I have one sitting next to me right now.


My pictures again
http://i224.photobucket.com/albums/dd25/AJxtcman/Trans%20Parts/HPIM3237-1.jpg
http://i224.photobucket.com/albums/dd25/AJxtcman/Trans%20Parts/HPIM3235.jpg

GizmoQ
10-01-07, 12:00 PM
O.K. where do I send th money?

AJxtcman
11-16-07, 07:35 PM
I am working on PERFORMANCE STALL CONVERTERS:bouncy:

Forum Cheap:histeric:

No Viscous Couplers either :banana:

I was quoted $500 for a 3000 stall:stirpot:
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Oh yeah just kidding it is only $225 delivered:rolleyes:

alxinya
11-16-07, 08:48 PM
I am interested in the shift kit.. I can't send you a private message cause I don't have enough posts yet. You can E-mail me at Alxinya@optonline.net. I have a few questions about it.
Alex

AJxtcman
11-16-07, 09:06 PM
O.K. I don't know for sure (no dyno, no trackslip) if AJ's tune is quantifiably better than stock, but I got over 118 so that part works. And the tranny kit is jut a kick in the ASS!!!!! It doesn't pull like the Turd, but it' close enough for me. I mashed it hard a couple times on the way home and 1-2 and 3-4 will get your attention. Oddly my gas mileage went up a bit even with the occasional WOT. 380 miles home, no codes, no smoke. Now for the Corsa exhaust and then its off to the track.

I did a shift kit for GizmoQ. I thought it was too aggressive for me, but he loved it.

GizmoQ
11-17-07, 02:32 AM
I did a shift kit for GizmoQ. I thought it was too aggressive for me, but he loved it.

You should see some of the looks I get when I chirp the tires on the 1-2 shift. Drops jaws everytime! :devil:

BlackCaddy87
11-21-07, 01:00 PM
I'd like to have this shift kit

AJxtcman
11-28-07, 06:45 PM
:bump:

iroc86
12-05-07, 02:23 PM
AJ,

I sent you a PM a couple days ago regarding the shift kit. Please let me know if you got it. Thanks!

AJxtcman
12-05-07, 09:18 PM
AJ,

I sent you a PM a couple days ago regarding the shift kit. Please let me know if you got it. Thanks!

I have been real busy with the LS1 program.

I have kits. Just give me a few days.

iroc86
12-05-07, 09:24 PM
OK, no problem. I already have my channel plate and accumulator disassembled to check for a couple TSBs. Where does your kit fit in?

AJxtcman
12-06-07, 01:59 PM
OK, no problem. I already have my channel plate and accumulator disassembled to check for a couple TSBs. Where does your kit fit in?

In the accumulator.

was the cover gasket blown out?

iroc86
12-06-07, 02:06 PM
was the cover gasket blown out?

Actually, no... the reverse and forward accumulator gasket was intact (but it was really thin --- not sure why GM didn't make it a couple mils thicker). I thought it might have had something to do with a slight delay in shifting between Reverse and Drive, but I guess not. I'm still going to install new O-rings on the accumulator pistons while I'm in there.

My car is a '98, but I figured I'd check for channel plate warpage anyway. It's warped about 0.012" in the worst area, measured using a feeler gauge and ruler placed diagonally across the plate. The channel plate gasket appears to compress up to 0.015", but I'm still a bit leery. Do you think I should replace the plate, or is this normal for a '98? How bad were the '00s? (My car didn't show any symptoms of a wapred plate, though.)

AJxtcman
01-12-08, 07:34 AM
Subject: Service Engine Soon (SES) Light On, Diagnostic Trouble Code (DTC) P0741, Torque Converter Clutch (TCC) Excessive Slip, Transaxle Chuggle, Slip/Surge (Inspect/Replace Internal Transaxle Components) #04-07-30-034 - (08/06/2004)


Models:
1998-2002 Cadillac Eldorado

1998-2004 Cadillac Seville

1999-2004 Cadillac DeVille

2000-2003 Oldsmobile Aurora

with 4T80-E Auto Transaxle (RPO MH1)




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

Condition
Some customer may comment on the SES light on and a chuggle or surge. Diagnostics may show excessive TCC slip speed and DTC P0741 will be current code stored.

Cause
Seal damage may allow the TCC apply fluid to leak into the channel plate, causing excessive TCC slippage under certain conditions, eventually causing no TCC apply.

TCC may have partial apply fluid pressure or no apply fluid pressure. If excessive slip speed is noted and condition/cause cannot be corrected by using DTC P0741 diagnostic chart, suspect worn seals from slippage of the drive sprocket bearing inner race on the drive sprocket.

Correction
DO THIS------------------------ DON'T DO THIS

Repair the transaxle ------------DO NOT replace the complete transaxle assembly


Follow the diagnostic and repair procedure below to repair this condition.

Remove the transaxle from the vehicle. Refer to the appropriate Service Information for transaxle removal procedure.
Remove the torque converter.
Install the transaxle to holding fixture. Refer to Holding Fixture Installation SI Document ID #513730.
Remove the transaxle side cover, upper valve body and case cover. Refer to the appropriate Unit Repair Information in SI.

http://i224.photobucket.com/albums/dd25/AJxtcman/Trans%20Parts/P0471/1.jpg

Inspect the two case cover seals (34 and 35) for uneven wear patterns.

http://i224.photobucket.com/albums/dd25/AJxtcman/Trans%20Parts/P0471/3.jpg

Inspect the two case cover seals (34 and 35) for uneven wear patterns. The wear patterns will be evident by a uneven wear pattern of the inner diameter white seal surface as shown in the two above illustrations.

http://i224.photobucket.com/albums/dd25/AJxtcman/Trans%20Parts/P0471/2.jpg

Inspect the two case cover seals (34 and 35) for splits/tears and or flat spots.

http://i224.photobucket.com/albums/dd25/AJxtcman/Trans%20Parts/P0471/4.jpg

Inspect the support drive socket (400) for wear on the bearing race.
Inspect the case cover (33) for wear or damage due to the drive sprocket bearing spinning in the bore.

Important:

During the tear down inspection, pay particular attention to seals (34, 35, 409 and 412) for wear or damage.

Seals (34, 35, 409 and 412) are part of Gasket Kit, P/N 24221398, and do not need to be ordered separately.

Replace the Torque Converter when servicing a vehicle with this condition.

Flush the transaxle cooler with Transflow cooler flushing tool, J 45096. Refer to Service Bulletins:

Info - Automatic Transmission Oil Cooler Flush and Flow Test Essential Tool J 45096, TransFlow #02-07-30-052

Transmission Cooling System Service Tool J 45096 - Transflow Information #03-07-30-002.


Replace only the necessary internal transaxle components per the tear down inspection.
See the parts list below.

http://i224.photobucket.com/albums/dd25/AJxtcman/Trans%20Parts/P0471/5.jpg

My parts list

Item #----------Description-------------------------Part #
1--------Torque Converter Assembly----------------???????? 3 to choose from
30-------Side Cover To Case Cover Gasket----------8679392
33-------Transmission Case Cover------------------ 24229131
43-------Sprocket Support to Case Cover Gasket----24208779
44-------Case to Case Cover Gasket----------------24208778
228------Pump Body & Spacer Plate Gasket kit------ 24231071
336------TCC Pressure Solenoid-------------------- 24227792
400------Drive Sprocket Support--------------------8681071
412------O-Ring Seal-------------------------------8686052
---------ATF 10 Quarts

AJxtcman
03-23-08, 12:34 PM
My friends at Sonnax have some repair kits also
http://i224.photobucket.com/albums/dd25/AJxtcman/Trans%20Parts/TCCvalve.jpg
http://i224.photobucket.com/albums/dd25/AJxtcman/Trans%20Parts/AFLvalve.jpg
http://i224.photobucket.com/albums/dd25/AJxtcman/Trans%20Parts/boostvalve.jpg
http://i224.photobucket.com/albums/dd25/AJxtcman/Trans%20Parts/Pumpbushing.jpg
http://i224.photobucket.com/albums/dd25/AJxtcman/Trans%20Parts/2-3accumulator.jpg
http://i224.photobucket.com/albums/dd25/AJxtcman/Trans%20Parts/3-4accumulator.jpg

AJxtcman
04-23-08, 07:38 AM
Subject: Service Engine Soon (SES) Light On, Diagnostic Trouble Code (DTC) P0741, Torque Converter Clutch (TCC) Excessive Slip, Transaxle Chuggle, Slip/Surge (Inspect/Replace Internal Transaxle Components) #04-07-30-034 - (08/06/2004)


Models:
1998-2002 Cadillac Eldorado

1998-2004 Cadillac Seville

1999-2004 Cadillac DeVille

2000-2003 Oldsmobile Aurora

with 4T80-E Auto Transaxle (RPO MH1)




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

Condition
Some customer may comment on the SES light on and a chuggle or surge. Diagnostics may show excessive TCC slip speed and DTC P0741 will be current code stored.

Cause
Seal damage may allow the TCC apply fluid to leak into the channel plate, causing excessive TCC slippage under certain conditions, eventually causing no TCC apply.

TCC may have partial apply fluid pressure or no apply fluid pressure. If excessive slip speed is noted and condition/cause cannot be corrected by using DTC P0741 diagnostic chart, suspect worn seals from slippage of the drive sprocket bearing inner race on the drive sprocket.

Correction
DO THIS------------------------ DON'T DO THIS

Repair the transaxle ------------DO NOT replace the complete transaxle assembly


Follow the diagnostic and repair procedure below to repair this condition.

Remove the transaxle from the vehicle. Refer to the appropriate Service Information for transaxle removal procedure.
Remove the torque converter.
Install the transaxle to holding fixture. Refer to Holding Fixture Installation SI Document ID #513730.
Remove the transaxle side cover, upper valve body and case cover. Refer to the appropriate Unit Repair Information in SI.

http://i224.photobucket.com/albums/dd25/AJxtcman/Trans%20Parts/P0471/1.jpg

Inspect the two case cover seals (34 and 35) for uneven wear patterns.

http://i224.photobucket.com/albums/dd25/AJxtcman/Trans%20Parts/P0471/3.jpg

Inspect the two case cover seals (34 and 35) for uneven wear patterns. The wear patterns will be evident by a uneven wear pattern of the inner diameter white seal surface as shown in the two above illustrations.

http://i224.photobucket.com/albums/dd25/AJxtcman/Trans%20Parts/P0471/2.jpg

Inspect the two case cover seals (34 and 35) for splits/tears and or flat spots.

http://i224.photobucket.com/albums/dd25/AJxtcman/Trans%20Parts/P0471/4.jpg

Inspect the support drive socket (400) for wear on the bearing race.
Inspect the case cover (33) for wear or damage due to the drive sprocket bearing spinning in the bore.

Important:

During the tear down inspection, pay particular attention to seals (34, 35, 409 and 412) for wear or damage.

Seals (34, 35, 409 and 412) are part of Gasket Kit, P/N 24221398, and do not need to be ordered separately.

Replace the Torque Converter when servicing a vehicle with this condition.

Flush the transaxle cooler with Transflow cooler flushing tool, J 45096. Refer to Service Bulletins:

Info - Automatic Transmission Oil Cooler Flush and Flow Test Essential Tool J 45096, TransFlow #02-07-30-052

Transmission Cooling System Service Tool J 45096 - Transflow Information #03-07-30-002.


Replace only the necessary internal transaxle components per the tear down inspection.
See the parts list below.

http://i224.photobucket.com/albums/dd25/AJxtcman/Trans%20Parts/P0471/5.jpg

My parts list

Item #----------Description-------------------------Part #
1--------Torque Converter Assembly----------------???????? 3 to choose from
30-------Side Cover To Case Cover Gasket----------8679392
33-------Transmission Case Cover------------------ 24229131
43-------Sprocket Support to Case Cover Gasket----24208779
44-------Case to Case Cover Gasket----------------24208778
228------Pump Body & Spacer Plate Gasket kit------ 24231071
336------TCC Pressure Solenoid-------------------- 24227792
400------Drive Sprocket Support--------------------8681071
412------O-Ring Seal-------------------------------8686052
---------ATF 10 Quarts

One of the two seals that fail
http://i224.photobucket.com/albums/dd25/AJxtcman/Trans%20Parts/P0471/Picture001.jpg

This is what it should look like
http://i224.photobucket.com/albums/dd25/AJxtcman/Trans%20Parts/P0471/Picture002.jpg
http://i224.photobucket.com/albums/dd25/AJxtcman/Trans%20Parts/P0471/Picture007.jpg

This is the bad spots
http://i224.photobucket.com/albums/dd25/AJxtcman/Trans%20Parts/P0471/Picture003.jpg
http://i224.photobucket.com/albums/dd25/AJxtcman/Trans%20Parts/P0471/Picture004.jpg
http://i224.photobucket.com/albums/dd25/AJxtcman/Trans%20Parts/P0471/Picture006.jpg

AJxtcman
10-20-08, 11:03 AM
bump for parts

Destroyer
10-20-08, 10:35 PM
So how much of a decrease in performance should be expected?:lildevil:

mighty_quad4
10-21-08, 07:06 AM
So how much of a decrease in performance should be expected?:lildevil:

i have found that the quality of the thread is inversely proportionate to the numbers of posts you make in said thread.

your disdain for AJ really ruins threads where he posts and id wish youd stop, its childish. im pretty sure AJ doesnt stalk threads you post in and post bad things about you. im not defending what he sells so much as i am defending a fellow CadillacForums member. i wasnt aware it was ok to stalk and hound ppl because you disagree with what they do.


modifying a valve body isnt hard and is foolproof with a manual or when using supplied instructions which 99.9% of all shift kits have.

AJxtcman
10-21-08, 07:59 AM
So how much of a decrease in performance should be expected?:lildevil:

16.1 to a 14.6 hmmmmmmm no Nitrous
With N2O we will be in the 12's. Currently fastest run was a 13.8 on a 125whp jet
And it is faster than this
http://i224.photobucket.com/albums/dd25/AJxtcman/Bert/GT500/Test1.jpg

Destroyer
10-21-08, 09:30 PM
i have found that the quality of the thread is inversely proportionate to the numbers of posts you make in said thread.

your disdain for AJ really ruins threads where he posts and id wish youd stop, its childish. im pretty sure AJ doesnt stalk threads you post in and post bad things about you. im not defending what he sells so much as i am defending a fellow CadillacForums member. i wasnt aware it was ok to stalk and hound ppl because you disagree with what they do.


modifying a valve body isnt hard and is foolproof with a manual or when using supplied instructions which 99.9% of all shift kits have.
There is no disdain and lol at the "stalking" thing. You're next MUHAHAHAHAHA!. Besides all that it was a joke.

Destroyer
10-21-08, 09:32 PM
16.1 to a 14.6 hmmmmmmm no Nitrous
With N2O we will be in the 12's. Currently fastest run was a 13.8 on a 125whp jet
And it is faster than this
http://i224.photobucket.com/albums/dd25/AJxtcman/Bert/GT500/Test1.jpg
Dont waste your time. I really dont care if you beat some Mustang (driving someone elses car) or even if you ever beat mine for that matter. Hows that N* Fiero of yours coming along?.

AJxtcman
10-21-08, 11:22 PM
Dont waste your time. I really dont care if you beat some Mustang (driving someone elses car) or even if you ever beat mine for that matter. Hows that N* Fiero of yours coming along?.

The Turd is in Rock Hill. That is about 850 miles from me. :cool:

I have a set of NEW cams built for Wheel 2 Wheel. :drool:

This summer I spent some time driving a 01 Vette (exhaust and Brake upgrade, 06 Vette (exhaust upgrade), The DHS (N2O, Brake upgrade, More Trans work/upgrades, lots more), 07 Trailblazer SS (exhaust Upgrade) and a Dodge Dakota. Wait I drove the Mustang over the weekend also.
I bet I put about 5000 to 10,000 miles on Highlines cars.

As a matter of fact the only car I legally can drive on the street has 3200 miles on it since December. Yes I have drove my car less than 5000 miles this year. The rest of the time it has been in HighLine's

He has been a Very Good Friend. I need his truck every other day. I am doing just a little work on my house

Destroyer
10-22-08, 07:30 AM
2 things a man should never lend out: his woman or his car.

97EldoCoupe
10-28-08, 07:00 AM
My 98 STS does tire-chirping 1-2 shifts quite often and it's bone stock- does anybody else's N* cars do this? Not on every road of course, but usually in town where the roads are a bit smoother.

I was beaten by a 2002 Grand Am GT earlier this summer. He was proud. But I had 3 people in the back, me and a friend in the front, and the trunk completely full with a mig welder, two brake rotors, a cv shaft assembly, bag of tools, and all my stuff (was on vacation). This was only up to approx. 60MPH- I would have probably top ended him but....we were in town and both decided we'd rather keep our licenses....

I'm just amazed at what that Grand Am had.... I beat him though when I unloaded my car. Both times were on 87 octane, I'm sure 91 or 93 would have improved the performance a bit.

97EldoCoupe
10-28-08, 07:02 AM
Destroyer, not to be offensive in any way, but if you're on the Cadillac Forums, shouldn't you have at least one Cadillac in your vehicle list?

Destroyer
10-28-08, 10:48 PM
Destroyer, not to be offensive in any way, but if you're on the Cadillac Forums, shouldn't you have at least one Cadillac in your vehicle list?I have had a few since joining but have no current need for one. I'm getting spoiled not having to make repairs on vechicles all the time. Its kinda addicting. My last one left a bad taste for Cadillacs and test drives of newer models only re-enforced that foul taste. I will eventually add a late '60's Deville convertible to the stable. :thumbsup:

flamestalker
11-01-11, 10:13 PM
still selling the shift kits? if so id like a medium. email me at Remotecontrolcrazy@yahoo.com