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Messages posted by: GreenDieselEngineering
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Just put you name in the box so we know who it is from.
Send us an email with the VIN and we can look up its service history for a GDE tune.
No change with our tuning on coolant or oil temps for the most part. These are more contingent on the cooling system design.
There are about 9 modules in the Ram, dealer can update all except the engine ecm/pcm. We sell with the latest part number release, so nothing at this time for the dealer to overwrite the GDE tune with. Worst case, if they overwrite in a year or two, we charge $50 to reinstall.
This is not readily feasible without hardware changes on the vehicle and the dealer tool cannot even enable it.
tomcatvet wrote:Any stats on driving while in tow/haul mode? Are shifting points lowered? Improved power ranges?


tow/haul mode only changes transmission shift behavior. Basically, delays the upshifts to higher speed thresholds. This is a separate module vs. the engine ecm we are tuning.
tomcatvet wrote:I purchased my truck new but late in the year and still have plenty of warranty left. should I have to use it and the GDE is reflashed as part of the repair of other update not related to the GDE where do we as costumers stand? Do we have to pay for the same flash again?


No, we have an 'ecm service update' on the website. It is $50 to reinstall the tune if ever overwritten by the dealer.
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.
The reflash is not needed for the oil change if running a GDE tune. If the dealer reflashed per the TSB, you can check if the GDE tune was overwritten by trying to set the cruise control at 20 mph. If the cruise will not set, then the dealer wiped out the tune.
Yes you will still want to use the winter cover. The grill shutters only cover half the front and do not do a good job in the cold.
The GDE tune displays the proper readiness readings to pass the test. The tuner company you used on the 6.0l did not know how to set the tune properly.
KranZ wrote:How would you know if the dealer overwrote the tune?


It will drive worse. The GDE tune can also set the cruise down to 15mph, stock minimum is 25mph.
That tool will not work with our tuning.
Effective immediately the oil pressure sensor kit can be ordered as an add-on for all Ram EcoDiesel tunes. This add-on includes the tune modifications and hardware necessary to replace the factory "dumb" oil pressure switch with an actual oil pressure sensor; this will also replace the data displayed in the instrument cluster with the real measured oil pressure instead of the modeled values used with the switch.

Installation instructions for the hardware part of the kit can be found here: https://drive.google.com/file/d/0BwRY3vGSprDHdERzblk3UnJVSE0/view?usp=sharing
[quote=AeroSonic]New member. I just bought a 2016 Grand Cherokee EcoDiesel primary for its balance of fuel economy, towing ability and utility as an SUV. I just found out about the GDE product, and if it will boost my fuel economy even more, I'm definitely interested, but I have a few questions.

1. I bought my Grand Cherokee on 20 Jul, and on that day there was a service bulletin # 18-078-16 telling dealers to remove the 5W-30 oil and switch it to Rotella 5W-40 and reprogram the PCM. My vehicle is covered and have an appointment to have that done. Does GDE need to change the programming of their ECM, or is it good to go as is?

2. I was also looking at installing a K&N 63-1570 air intake. Would that and the ECM help boost fuel economy or will the ECM alone do that?

3. Lastly (and this is probably discussed somewhere), what is the negative tradeoff for swapping out the ECM (other than the initial cost)? Installation voids warranty if the dealer finds out?

[/quote]

1. GDE updates the tune every time FCA has a software release. This is so we stay at the latest part number. Anything FCA does needs to be redone by GDE.
2. The tune will help fuel economy, but a K&N will do nothing. K&N will also lead to less turbo life as it lets larger dirt particles through the intake.
3. No warranty issue as long as you do not mention it is tuned to the dealer, they cannot detect our tune with the dealer scan tool.
 
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