Most TC failures are because the clutch material wears away or burns up because of slippage during high torque events. Some of the early CRD that were recalled for the F-37 had a damper which could break and totally jack the tranny up. If you have had the F-37, you should have nothing to worry about, as long as you are not shuddering too much.

_________________
Manure green 2005 CRD sport4x4, GDE Hot tune, Cat Gut, OE skids, Draw tight hitch, Duramax lift pump, 160K on multiple varieties of fuel, XM radio, Escort live with Redline, fog light mod, GPS, Icom IC7000 all band radio call sign KC9QPF, Grabber AT2s on Soft 8s, FIA grill blanket.

That is good to hear! I will prolly just leave the other Libby Eco tuned, until Keith comes out with a significant update? Would not want to blow two TCs with this experiment.

So I guess the noise in a failed TC is the metal to metal sound of no clutch material, and loose parts?

The Dr. Tranny is the best snake oil I ever bought

_________________
2006 LTD Bright Silver loaded with all the needed mods, CCV intact.
Proudly supporting CRD vendors, and their development of quality parts and accessories.
Equipped with HDS thermostat, plenty of heat, faster warm-ups, increased fuel mileage.

DC could have saved a million dollars repairing our CRD's, and we could had avoided the F-37 flash, if they had put in Shudder Eliminator instead.

_________________
2006 LTD Bright Silver loaded with all the needed mods, CCV intact.
Proudly supporting CRD vendors, and their development of quality parts and accessories.
Equipped with HDS thermostat, plenty of heat, faster warm-ups, increased fuel mileage.

Accountants do have intelligence, they keep the company finances inline.
Cost benefit analysis is a concept they understand.
Beancounters do not have any Intelligence, all they do is just count beans.
Put a Beancounter into a position of power, and all they know is cut.
Cost benefit analysis is beyond their reach, let alone their grasp.
Chrysler had Beancounters in charge at the time and putting in an additive to eliminate a problem was too complex for them to comprehend.

_________________
2006 Pearl Green CRD
Magnaflow 2 1/2" Cat Back
KJ Extra Leg Room Brackets, Carter Lift Pump, V6 Airbox, ORM
Fuel cooler, Oil Separator, Progard 7
Gauges EGT Boost Trans Temp Oil Pres, Michelin LXT AT2 245 70 R16
7,000# Draw Tight hitch, PML EX Deep Trans Pan
Centrifuge, SunCoast, Transgo, RAM TCM, InMotion Stage 2
Wife's 99 TDI VW Beetle

I was surprised to see that SAAB uses one of their products for a TSB.

http://www.lubegard.com/pdfs/OEMsuseLubegard.pdf

_________________
2006 LTD Bright Silver loaded with all the needed mods, CCV intact.
Proudly supporting CRD vendors, and their development of quality parts and accessories.
Equipped with HDS thermostat, plenty of heat, faster warm-ups, increased fuel mileage.

flman,

good to hear on your results. You do any towing? I am curious what your results would be towing.

Thanks

No towing.

_________________
2006 LTD Bright Silver loaded with all the needed mods, CCV intact.
Proudly supporting CRD vendors, and their development of quality parts and accessories.
Equipped with HDS thermostat, plenty of heat, faster warm-ups, increased fuel mileage.

you mind doing some towing? I mean, it is not often some random dude on the internet asks you to do something... ha ha...

Just curious if this really solves the total problem, or if it is still there.

I don't feel like doing the converter either, 200 bucks, plus install.... a little too much.

Thanks again.

LOL, you supply me with the hitch, the trailer and the load

This stuff really solves the problem, and it only takes a few minutes

_________________
2006 LTD Bright Silver loaded with all the needed mods, CCV intact.
Proudly supporting CRD vendors, and their development of quality parts and accessories.
Equipped with HDS thermostat, plenty of heat, faster warm-ups, increased fuel mileage.

I dumped a tube into the CRD (wife's vehicle) without telling her. Give it a few days and see if she notices anything. Thaht being said, since I replaced the fluid w/ Amsoil ATF ~9k miles ago and the GDE tune it's only shuddered once and I was towing.

The worst thing it does is sometimes take forever to move the Jeep after shifting when cold (yes it has plenty of fluid) and also when cold will not slip so when you come to a stop it will lurch and stall. Idk if this stuff will help w/ that (I'm planning for a Euro TC and pump change) but if it'll help it last until next summer my budget would appreciate it.

_________________
Chris
Current:
2007 Steel Blue Metallic Grand Cherokee CRD Limited
GDE Eco Tune and DPF delete
CB Engineering DPF delete pipe
EHM

Past (sold to Mountainman):
2005 Patriot Blue Liberty CRD Limited

I put one tube of Dr Tranny in...it is 1/2 of what comes in the Lubeguard bottle. It cut the shudder down about 50% in severity but not all the way...although I have been taking it easier with the HOT Tune. 26.55 mpg last tank in town using any highways I can in town.

_________________
Founder of L.O.S.T.
2006 CRD Sport
Mods: GDE Hot Tune w/ 364#@2000rpm/Air Box /3" Str8 Exhaust/ASFIR Alum Skids/245-75R-16 Cooper STT PRO/OME LIFT w/Clevis & 4 Spring Isos/AirTabs/Rigid 10" S2 LED/4xGuard Ctr Matrix Bumper
Drag Strip:Reac=.1078_60ft=2.224_1/8=10.39@64.8mph_1/4+16.46@80.8mph

Take a look at my LONG post in this thread. My Libby did some of the same things after a fluid change. Now a days even a tranny fluid change can screw things up. When I did the change on my second Jeep, I measured what I drained out, and added the same amount of fluid, I started the vehicle and did not take it out of park for a minute, just to be sure the tranny was up to pressure with no air in it. I then correct the level.

Thanks to Joe Ramas, he said, it needed to be relearned.

The process is called "Drive Learn"

Check the fluid is filled properly first.

DRIVE LEARN
When a transmission is repaired and a Quick Learn procedure has been performed on the Transmission Control Module (TCM), the following Drive Learn procedure can be performed to fine tune any shifts which are particularly objectionable.

NOTE: It is not necessary to perform the complete Drive Learn procedure every time the TCM is Quick Learned. Perform only the portions which target the objectionable shift.

LEARN A SMOOTH 1ST NEUTRAL TO DRIVE SHIFT
Perform this procedure only if the complaint is for a delayed or harsh shift the first time the transmission is put into gear after the vehicle is allowed to set with the engine not running for at least 10 minutes. Use the following steps to have the TCM learn the 1st N-D UD CVI.

NOTE: The transmission oil temperature must be between 27-43° C (80-110° F).


1. Start the engine only when the engine and ignition have been off for at least ten (10) minutes.
2. With the vehicle at a stop and the service brake applied, record the 1st N-D UD CVI while performing a Neutral to Drive shift. The 1st N-D UD CVI accounts for air entrapment in the UD clutch that may occur after the engine has been off for a period of time.
3. Repeat STEP 1 and STEP 2 until the recorded 1st N-D UD CVI value stabilizes.
NOTE: It is important that this procedure be performed when the transmission temperature is between 27-43° C (80-110° F). If this procedure takes too long to complete fully for the allowed transmission oil temperature, the vehicle may be returned to the customer with an explanation that the shift will improve daily during normal vehicle usage. The TCM also learns at higher oil temperatures, but these values (line pressure correction values) are not available for viewing on the scan tool.

LEARN A SMOOTH NEUTRAL TO DRIVE GARAGE SHIFT
Perform this procedure if the complaint is for a delayed or harsh shift when the transmission is put into gear after the vehicle has had its first shift. Use the following steps to have the TCM learn the Norm N-D UD CVI.

NOTE: The transmission oil temperature must be between 27-43° C (80-110° F) to learn the UD CVI. Additional learning occurs at temperatures as low as -18° C (0° F) and as high as 93° C (200° F). This procedure may be performed at any temperature that experiences poor shift quality. Although the UD CVI may not change, shift quality should improve.


1. Start the vehicle engine and shift to drive.
2. Move the vehicle forward to a speed of at least 16 km/h (10 MPH) and come to a stop. This ensures no air is present in the UD hydraulic circuit.
3. Perform repeated N-D shifts at a stop while pausing in Neutral for at least 2-3 seconds and monitor Norm N-D UD CVI volume until the value stabilizes. The value will change during the N-D shift. This is normal since the UD value is different for the N-D shift then the normal value shown which is used for 4-3 coastdown and kickdowns. Perform repeated shifts in this temperature range until the Norm N-D UD CVI value stabilizes and the N-D shifts become smooth.
LEARN THE 1ST 2-3 SHIFT AFTER A RESTART OR SHIFT TO REVERSE
Use the following steps to have the TCM learn the 1st 2-3 shift OD CVI.

NOTE: The transmission oil temperature must be above 27° C (80° F).


1. With the vehicle engine running, select reverse gear for over 2 seconds.
2. Shift the transmission to Drive and accelerate the vehicle from a stop at a steady 15 degree throttle opening and perform a 2-3 shift while noting the 1st 2-3 OD CVI.
3. Repeat STEP 1 and STEP 2 until the 1st 2-3 upshift becomes smooth and the 1st 2-3 OD CVI stabilizes.
LEARN A SMOOTH 2-3 AND 3-4 UPSHIFT
NOTE: The transmission oil temperature must be above 43° C (110° F).

Use the following steps to have the TCM learn the OD and 4C CVI's.


1. Accelerate the vehicle from a stop at a steady 15 degree throttle opening and perform multiple 1-2, 2-3, and 3-4 upshifts. The 2nd 2-3 shift following a restart or shift to reverse will be shown during the shift as a value between the 1st 2-3 OD CVI and the normal OD CVI. Updates to the normal OD CVI will occur after the 2nd shift into 3rd gear, following a restart or shift to reverse.
2. Repeat STEP 1 until the 2-3 and 3-4 shifts become smooth and the OD and 4C CVI become stable.
LEARN A SMOOTH 4-3 COASTDOWN AND PART THROTTLE 4-3 KICKDOWN
NOTE: The transmission oil temperature must be above 43° C (110° F).

Use the following steps to have the TCM learn the UD shift volume.


1. At a vehicle speed between 64-97 km/h (40-60 mph), perform repeated 4-3 kickdown shifts.
2. Repeat STEP 1 until the UD volume becomes somewhat stable and the shift becomes smooth.
LEARN A SMOOTH 1-2 UPSHIFT AND 3-2 KICKDOWN
Use the following steps to have the TCM learn the 2C shift volume.

NOTE: The transmission oil temperature must be above 43° C (110° F).


1. With a vehicle speed below 48 km/h (30 mph) and the transmission in 3rd gear, perform multiple 3-2 kickdowns.
2. Repeat STEP 1 until the 3-2 kickdowns become smooth and the 2C CVI becomes stable.
LEARN A SMOOTH MANUAL 2-1 PULLDOWN SHIFT AS WELL AS A NEUTRAL TO REVERSE SHIFT
NOTE: The transmission oil temperature must be above 43° C (110° F).

Use the following steps to have the TCM learn the LR volume.


1. With the vehicle speed around 40-48 km/h (25-30 mph) in Manual 2nd, perform manual pulldowns to Low or 1st gear at closed throttle.
2. Repeat STEP 1 until the LR CVI becomes stable and the manual 2-1 becomes smooth.
LEARN A SMOOTH NEUTRAL TO REVERSE SHIFT
NOTE: The transmission oil temperature must be above 43° C (110° F).


1. With the vehicle at a stop, perform Neutral to Reverse shifts until the shift is smooth. An unlearned Neutral to Reverse shift may be harsh or exhibit a double bump.
2. If any of the shifts are still not smooth after the clutch volume stabilizes, an internal transmission problem may be present.
LEARN A SMOOTH 4-5 UPSHIFT
NOTE: The transmission oil temperature must be above 43° C (110° F).

Use the following steps to have the TCM learn the Alt 2C CVI.


1. Accelerate the vehicle through 88 km/h (55 mph) at a steady 10-15 degree throttle opening and perform multiple 4-5 upshifts.
2. Repeat STEP 1 until the 4-5 shift become smooth and the Alt 2C CVI become stable. There is a separate 2C volume used and learned for 4-5 shifts, 2CA. It is independent of the 2C CVI learned on 3-2 kickdowns.

_________________
2006 LTD Bright Silver loaded with all the needed mods, CCV intact.
Proudly supporting CRD vendors, and their development of quality parts and accessories.
Equipped with HDS thermostat, plenty of heat, faster warm-ups, increased fuel mileage.

Thanks for the pointer. I assume I need some kind of computer to do this?

_________________
Chris
Current:
2007 Steel Blue Metallic Grand Cherokee CRD Limited
GDE Eco Tune and DPF delete
CB Engineering DPF delete pipe
EHM

Past (sold to Mountainman):
2005 Patriot Blue Liberty CRD Limited

I did not use a computer, I just repeated the sequence for about 5 minutes, but you only have to do it for the actual problem. Not every step, my Jeep was engaging slow into reverse and drive. I was like OH crud, tranny has got a problem. Works fine now.

_________________
2006 LTD Bright Silver loaded with all the needed mods, CCV intact.
Proudly supporting CRD vendors, and their development of quality parts and accessories.
Equipped with HDS thermostat, plenty of heat, faster warm-ups, increased fuel mileage.

I don't know if the two correlate or not...but my mileage has gone up and stabilized after adding the Dr. Tranny...hope that it is a cause and effect.

_________________
Founder of L.O.S.T.
2006 CRD Sport
Mods: GDE Hot Tune w/ 364#@2000rpm/Air Box /3" Str8 Exhaust/ASFIR Alum Skids/245-75R-16 Cooper STT PRO/OME LIFT w/Clevis & 4 Spring Isos/AirTabs/Rigid 10" S2 LED/4xGuard Ctr Matrix Bumper
Drag Strip:Reac=.1078_60ft=2.224_1/8=10.39@64.8mph_1/4+16.46@80.8mph

Wife has reported much less slippage when cold since adding the Dr. Tranny. However it still has the problem where it won't slip enough at the first stop sign in our neighborhood and often stalls the engine. I'm assuming this is a pump problem. Saving my nickels to do a Euro TC and pump next summer.

_________________
Chris
Current:
2007 Steel Blue Metallic Grand Cherokee CRD Limited
GDE Eco Tune and DPF delete
CB Engineering DPF delete pipe
EHM

Past (sold to Mountainman):
2005 Patriot Blue Liberty CRD Limited