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ECO tune customer with stock TC  RSS feed
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zoom_camper

Joined: 30/06/2010 20:54:18
Messages: 4
Location: Bryan, Ohio
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Is there any way to tell if the transmission was removed for the F37 recall. After ready several on-line forms, most people's statedthat their crd's shift points changed, mine did not. I also got the jeep back the day I took it in before the end of the day; the under hood F37 sticker has a hand written note: PCM flash update, and date. I am wondering if they actual did the work?

When I was younger and making hotrods, sometime it took all day if not overnight to change-out a tranny. But we didn't really have the correct tools, just strong muscles.

I just know that on a grade my jeep downshifts where it didn't before and the temp gage goes up past the middle. Funny a gage without numbers really isn't a gage but a fancy idiot light thank for posting numbers at least I have some idea now!

Aerolite Zoom 180FD
Liberty CRD
Dead Stock
flman
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Joined: 28/08/2009 19:59:32
Messages: 74
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zoom_camper wrote:Is there any way to tell if the transmission was removed for the F37 recall. After ready several on-line forms, most people's statedthat their crd's shift points changed, mine did not. I also got the jeep back the day I took it in before the end of the day; the under hood F37 sticker has a hand written note: PCM flash update, and date. I am wondering if they actual did the work?

When I was younger and making hotrods, sometime it took all day if not overnight to change-out a tranny. But we didn't really have the correct tools, just strong muscles.

I just know that on a grade my jeep downshifts where it didn't before and the temp gage goes up past the middle. Funny a gage without numbers really isn't a gage but a fancy idiot light thank for posting numbers at least I have some idea now!


No need to remove the tranny for the F37, it is programmed into the Transmission Control Module, that is located on the right fender. If it makes its final shift to 5th gear at 59 MPH it has no F37, if it has to get to 64 MPH to hit 5th gears, it has F37.

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
zoom_camper

Joined: 30/06/2010 20:54:18
Messages: 4
Location: Bryan, Ohio
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Thanks for the information! Since new my CRD has always gone into 5th lock-up at 59MPH, it will hold this until speed gets down to 56MPH and still does. I was under the under the understanding that the TC and the front pump were to be replaced with the F37 recall.

It sound like the only thing the dealer did was to put a sticker on the radiator support, keeping the F37 kit (TC and front pump) they had and charged Jeep for the repair. Maybe I'm lucky.

What is the differnece between the ECO tune and the Inmotion's ECM tune other than 3 hp, 6 ft-lbs torque, and a $100 cost difference?

Aerolite Zoom 180FD
Liberty CRD
Dead Stock
flman
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Joined: 28/08/2009 19:59:32
Messages: 74
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zoom_camper wrote:Thanks for the information! Since new my CRD has always gone into 5th lock-up at 59MPH, it will hold this until speed gets down to 56MPH and still does. I was under the under the understanding that the TC and the front pump were to be replaced with the F37 recall.

It sound like the only thing the dealer did was to put a sticker on the radiator support, keeping the F37 kit (TC and front pump) they had and charged Jeep for the repair. Maybe I'm lucky.

What is the differnece between the ECO tune and the Inmotion's ECM tune other than 3 hp, 6 ft-lbs torque, and a $100 cost difference?


I will let Mr. Green answer that for you.

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
Zoom_camper,

The relatively small difference in power and torque are the only similarities between the GDE tunes and Immotion tunes. The fuel efficiency of the GDE tune is one of our core selling features, that alone more than covers the price difference. However, we also have several other features to spice up the GDE tunes including minimizing EGR issues, smoother driveline torsionals, improved launch, mimimal smoke, linear acceleration with no holes in the performance feeling, linear fuel gauge, etc. Here is another page on our website with more details on our development process and engineering validation.

http://www.greendieselengineering.com/goPage.do?method=calbDtl

http://www.greendieselengineering.com/goPage.do?method=calbVal

Thanks for your interest!
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mavalos
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Joined: 22/12/2016 11:06:25
Messages: 5
Location: Grand Junction CO
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I have both eco tune and trans tunes, purchased 04/2014 and 10/2014. I've developed a vibration (felt in the steering wheel) in the 40-50 mph range, only under throttle pressure not the coast side. I've ruled out any tires /driveline / axle issues. From what I've learned so far is that the TC may be causing it.

I put less than 7K miles / yr. and mostly for light to moderate off road use.

Factory REMAN motor has ~60K, odometer is 120K.

How can I test / know with reasonable certainty that is is in fact the TC? And if so what TC would be my best choice?
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mavalos
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Joined: 22/12/2016 11:06:25
Messages: 5
Location: Grand Junction CO
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mavalos wrote:I have both eco tune and trans tunes, purchased 04/2014 and 10/2014. I've developed a vibration (felt in the steering wheel) in the 40-50 mph range, only under throttle pressure not the coast side. I've ruled out any tires /driveline / axle issues. From what I've learned so far is that the TC may be causing it.

I put less than 7K miles / yr. and mostly for light to moderate off road use.

Factory REMAN motor has ~60K, odometer is 120K.

How can I test / know with reasonable certainty that is is in fact the TC? And if so what TC would be my best choice?


Bumping my post.

Took the Jeep to a long-time, reputable TC builder (Accerated Torque Converters) here in Grand Junction CO. He drove the Jeep and was pretty sure it wasn't the TC or the transmission making the vibration / droning noise. He suggested I take it to a driveline specialist which I did and he noted excessive lateral movement in the RF CV axle. Turns out that the replacement of that shaft I did a few months ago was not the correct part as it was for a gasser. They installed a new (correct) one along with a new inner axle shaft. Still no change in the vibration issue. They have no clue at this point of what to do.

Is it possible that the turbo would behave this way? I've run out of possibilities. VERY frustrating!!
Moore

Joined: 18/01/2017 14:02:25
Messages: 1
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My liberty has the same vibration at 43-50. I am just about to do a new TC (because of shudder not vibration) and will let you know if it fixes this. I have been under the suspicion that it is the TC but haven't had a reason to change it until the shudder started (about 2000 miles after ECO tune). Also on a side note..... I have a local transmission shop and TC shop building a custom TC for me, they say there is no reason they cant build a TC just as strong as the Suncoast, including a billet front cover brazed fins and heavy duty springs on the internal for much less money.
mavalos
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Joined: 22/12/2016 11:06:25
Messages: 5
Location: Grand Junction CO
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Moore wrote:My liberty has the same vibration at 43-50. I am just about to do a new TC (because of shudder not vibration) and will let you know if it fixes this. I have been under the suspicion that it is the TC but haven't had a reason to change it until the shudder started (about 2000 miles after ECO tune). Also on a side note..... I have a local transmission shop and TC shop building a custom TC for me, they say there is no reason they cant build a TC just as strong as the Suncoast, including a billet front cover brazed fins and heavy duty springs on the internal for much less money.


Great to finally see a response to my post. As I mentioned, we have a well respected TC builder here also. I went back in his shop and was blown away at his equipment! Builds some TC's from billet stainless steel! He address the know problems of various TC's and doesn't try to sell you a "bullet proof" one unless it's what you want or need for your application.

At this moment my Jeep is at (yet another) shop for another opinion. The one thing they found so far is a loose rack that may be telegraphing sound / vibration.

Odd that you're experience as to MPH is exactly where mine come in. However, the TC guy didn't think it was the TC. If nothing is found by the Jeep shop, I may take it back to the TC shop and let him drive it again to verify.
GreenDieselEngineering
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Joined: 10/07/2009 07:25:47
Messages: 348
Location: Southeast Michigan
Failed engine mounts might lead to more vibration. Maybe a driveshaft balance issue. I do not think the turbo would lead to this problem. Is the problem only with the torque converter in lock-up mode? Try the same speeds with OD off and see if the vibration changes.
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mavalos
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Joined: 22/12/2016 11:06:25
Messages: 5
Location: Grand Junction CO
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GreenDieselEngineering wrote:Failed engine mounts might lead to more vibration. Maybe a driveshaft balance issue. I do not think the turbo would lead to this problem. Is the problem only with the torque converter in lock-up mode? Try the same speeds with OD off and see if the vibration changes.


Thanks so much for your input!

We've ruled out driveshaft(s). They were each removed with the same results.

Don't know about the TC in or out of lock-up mode, but don't know for sure. I think it locks up near 50 mph. According the the local TC shop here in town, after driving it, he doesn't seem to think it's the TC.

I've tried the same speeds with the OD on/off. No change. RPM's don't change the effect: at 45 - 53 mph on level ground with throttle pressure it vibrates / drones. Can feel it in the steering wheel. As soon as throttle pressure is released, the vibe and drone goes away. Some evidence of vibe / drone at above 55 mph but barely detectable.

One mechanic noticed the steering rack was a little loose. It was replaced at 60K miles. Not to say it's not worn out again due to the many off highway miles I put on it.

I agree that even though the motor mounts were replaced a couple years ago, I've decided to replace / inspect the passenger side this weekend.

The other culprit (steering rack bushings) could also be transmitting the vibe / noise, so while I'm under the Jeep I'll give it a real close look. There's a band-aid fix (found on LOST) for it by inserting some large flat rubber washers between the mounting surface and the rack.
 
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