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Dr. Tranny Instant Shudder Eliminator  RSS feed
Forum Index » New Mopar Torque Converter
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flman
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Joined: 28/08/2009 19:59:32
Messages: 74
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I was considering down flashing the Hot tuned Jeep to Eco because I was getting shudder. You wont even get this until you drive normal, no lock-up when you are putting petal to the metal. Any ways I saw a mention of this stuff on LOST. So I gave it a try, results are instant. I got on the NYS Thruway, and tried to drive in the ranges where I would get shudder, I could not produce it. So I went to a local highway, where I was able to previosly get shudder, still could not produce shudder. Looks like we may have a poor man's fix for shudder, just have to see if the rest of the internals can handle the torque? It only cost $7 to $9 per tube.

More info here http://www.lubegard.com/SearchByCategory.aspx?CategoryCode=230&title=Dr.+Tranny+Instant+Shudder+Fixx#

Still Burnin Oil since 1992!
2010 John Deere 2305 3 cylinder Yanmar
GDE HOT!! Tuned 2006 CRD LTD Silver, Euro TC, GDE Tuned TCM, B&M Trans drain kit
GDE ECO Tuned 2006 CRD Sport Black, B&M Trans drain kit, Front and rear hooks, Full Skids
GDE ECO Tuned 2005 MB 2500 Sprinter Van
2010 MB 2500 Sprinter Van
GreenDieselEngineering
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Joined: 10/07/2009 07:25:47
Messages: 348
Location: Southeast Michigan
The friction modifier may be a good solution for borderline shudder problems. We noticed that the product comes in a 2 oz tube, did you only need one tube or are several required to acheive the desired effects? Does this mean you are sticking with the HOT tune on the one vehicle?
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flman
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Joined: 28/08/2009 19:59:32
Messages: 74
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Just one 2 oz tube is all it took, I will stick with the Hot tune, there is a major difference between the Hot and Eco.


Still Burnin Oil since 1992!
2010 John Deere 2305 3 cylinder Yanmar
GDE HOT!! Tuned 2006 CRD LTD Silver, Euro TC, GDE Tuned TCM, B&M Trans drain kit
GDE ECO Tuned 2006 CRD Sport Black, B&M Trans drain kit, Front and rear hooks, Full Skids
GDE ECO Tuned 2005 MB 2500 Sprinter Van
2010 MB 2500 Sprinter Van
LOSTCRD

Joined: 18/07/2009 22:51:54
Messages: 26
Location: San Antonio, Texas
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I had no shudder previous to the HOT Tune. Once I got the Hot Tune I finally felt what everyone was talking about. I could get it when punching the go pedal at speeds 40-50 or so. I added one tube of Dr. Tranny and it did lessen the amount and frequency...but did not eliminate it all together. I waited two weeks and added a second tube...no shudder so far...amazing stuff IMO.

2006 Jeep Liberty CRD...OME Lift...ASFIR Aluminum Skids and Steps...

DarbyWalters @ L.O.S.T.
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brew1

Joined: 18/08/2009 22:13:29
Messages: 15
Location: Richfield WI
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I agree, this stuff works. I used two tubes and haven't experienced the shudder since. I highly recommend it. However, I wouldn't consider it a substitute for upgrading to the Suncoast TC or latest MOPAR upgraded TC if you go with a performance tune on your ECU.

"Can't drive 65"

05 CRD Limited, RC1, 3rd DC TC, F37
57,000 miles on a 7/70 DC warranty as of 8-20-09
brew1

Joined: 18/08/2009 22:13:29
Messages: 15
Location: Richfield WI
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Update on the shudder.

Mild shudder is back after adding the two tubes a couple thousand miles ago. Usual story, right around 52 - 54 miles per hour, most often when going uphill. Gonna let it alone and do some trailer hauling and see if I can make the shudder bad enough to have the stealership replace the TC again under the remaining PT warranty. I understand the latest replacement TC may actually hold up more than a year

"Can't drive 65"

05 CRD Limited, RC1, 3rd DC TC, F37
57,000 miles on a 7/70 DC warranty as of 8-20-09
GreenDieselEngineering
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Joined: 10/07/2009 07:25:47
Messages: 348
Location: Southeast Michigan
brew1,

If you are able to get the new Mopar TC under warranty...that would set you up for the next several years. Being able to demonstrate shudder to a dealer should be enough to warrant a replacement. A little preventative maintenance on the TC will save the transmission in the long run. Ours are still going strong after 20,000 miles on two different KJs and we tend to be very destructive on our cars. The way we look at it, if it does not fail while we are testing it, chances are it will not fail on someone who actually treats their vehicle nice. Call us the 99th percentile driver...
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bigmaho1

Joined: 16/08/2009 09:43:45
Messages: 20
Location: Mt Kisco, NY
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lol, what do you consider 'destructive'?

2006 CRD w/ Eco Tune, TC tune, new modified fuel filter/water separator and new Mopar TC
2006 CRD Ltd Eco-tune.
Jeep Patriot (to keep the kids away from my diesel
GreenDieselEngineering
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Joined: 10/07/2009 07:25:47
Messages: 348
Location: Southeast Michigan
"Destructive" testing on a KJ CRD:

1. Increasing the engine output torque to find "shudder" with stock torque converter. Then backing off on allowable torque for customer vehicles to prevent shudder. The original TCs on our vehicles had a rough life and were in dire need of the Mopar TC upgrade.

2. Pulling a 7000lb trailer around to validate acceleration ability and being able to hold a steady-state speed on the highway. Not so destructive, but not good for suspension life and very hard on u-joints.

3. Repeating 0-60 performance runs until brake fade was very apparent. Warped a few rotors in the process!

4. Off-road validation caused a major issue with one KJ being stuck overnight in a river. We needed a track loader to drag it out. The sand bar wreaked havoc on the u-joints, front axle pinion seal, and another brake job.

5. We found that the front bumper assembly is mostly held on with little plastic push in fasteners...these readily fail if the nose of the vehicle comes down too hard after a small jump.

6. The CAC hoses are weakened by oil seepage and pop like popcorn with the stage II turbo kit. The Samcos fixed this failure mode.


Both vehicles are still going strong despite our best efforts. We will have these in our arsenal for a long time coming!
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brew1

Joined: 18/08/2009 22:13:29
Messages: 15
Location: Richfield WI
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GreenDieselEngineering wrote:brew1,

If you are able to get the new Mopar TC under warranty...that would set you up for the next several years. Being able to demonstrate shudder to a dealer should be enough to warrant a replacement. A little preventative maintenance on the TC will save the transmission in the long run. Ours are still going strong after 20,000 miles on two different KJs and we tend to be very destructive on our cars. The way we look at it, if it does not fail while we are testing it, chances are it will not fail on someone who actually treats their vehicle nice. Call us the 99th percentile driver...


Vehicle was previously in a lease program in AZ and the first TC was replaced by the stealership in the second year. I had the 2nd TC replaced about 1 year ago by my local stealership. They just drove it and confirmed the shudder, I already provided them with a copy of TSB. Only thing they didn't do was replace the tranny pump, which kinda pissed me off since it was called for under the TSB.

I figure another 3 months and with a little flogging, it will be ready for another TC this summer under the PT warranty.

"Can't drive 65"

05 CRD Limited, RC1, 3rd DC TC, F37
57,000 miles on a 7/70 DC warranty as of 8-20-09
flman
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Joined: 28/08/2009 19:59:32
Messages: 74
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Today my Eco Tuned Jeep Shuddered like hell, I was doing between 55 and 65 going through a mountainous region. Every time I would slightly press the accelerator while cruising uphill, I would get a light shudder. The Hot tuned Jeep would get a harsh shudder until I put in the additive. So Eco Jeep got a tube of the additive today as well.

Still Burnin Oil since 1992!
2010 John Deere 2305 3 cylinder Yanmar
GDE HOT!! Tuned 2006 CRD LTD Silver, Euro TC, GDE Tuned TCM, B&M Trans drain kit
GDE ECO Tuned 2006 CRD Sport Black, B&M Trans drain kit, Front and rear hooks, Full Skids
GDE ECO Tuned 2005 MB 2500 Sprinter Van
2010 MB 2500 Sprinter Van
WXman
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Joined: 29/01/2010 14:53:49
Messages: 28
Location: Kentucky
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So where exactly are you guys buying this additive? Any guesses on long term negative effects it could possibly have?

'05 Liberty CRD Limited
Factory Off-Road Package
Daystar spacer lift/Conduit washers
Skyjacker H7088s in the rear
Renegade wheels
255/70-16 General Grabber AT2s
GDE HOT Tune
EHM
No clutch fan
"Euro" TC
flman
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Joined: 28/08/2009 19:59:32
Messages: 74
Offline
WXman wrote:So where exactly are you guys buying this additive? Any guesses on long term negative effects it could possibly have?


I got it at Carquest, or you can buy it online? Try this link http://www.lubegard.com/WhereToBuy.aspx

Still Burnin Oil since 1992!
2010 John Deere 2305 3 cylinder Yanmar
GDE HOT!! Tuned 2006 CRD LTD Silver, Euro TC, GDE Tuned TCM, B&M Trans drain kit
GDE ECO Tuned 2006 CRD Sport Black, B&M Trans drain kit, Front and rear hooks, Full Skids
GDE ECO Tuned 2005 MB 2500 Sprinter Van
2010 MB 2500 Sprinter Van
WXman
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Joined: 29/01/2010 14:53:49
Messages: 28
Location: Kentucky
Offline
I put a full tube of this stuff down my tranny fill tube today and it didn't even phase the shudder. Should I try another tube or would that be bad for the tranny?

'05 Liberty CRD Limited
Factory Off-Road Package
Daystar spacer lift/Conduit washers
Skyjacker H7088s in the rear
Renegade wheels
255/70-16 General Grabber AT2s
GDE HOT Tune
EHM
No clutch fan
"Euro" TC
flman
[Avatar]

Joined: 28/08/2009 19:59:32
Messages: 74
Offline
WXman wrote:I put a full tube of this stuff down my tranny fill tube today and it didn't even phase the shudder. Should I try another tube or would that be bad for the tranny?


Darby and others used a second tube, maybe your TC is already at the point of no return?

Still Burnin Oil since 1992!
2010 John Deere 2305 3 cylinder Yanmar
GDE HOT!! Tuned 2006 CRD LTD Silver, Euro TC, GDE Tuned TCM, B&M Trans drain kit
GDE ECO Tuned 2006 CRD Sport Black, B&M Trans drain kit, Front and rear hooks, Full Skids
GDE ECO Tuned 2005 MB 2500 Sprinter Van
2010 MB 2500 Sprinter Van
 
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