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Grand Cherokee EcoDiesel (WK2) Hot Tune

$749.00
In stock
Grand Cherokee EcoDiesel (WK2) Model Year
Grand Cherokee EcoDiesel (WK2) Tune Purchase
Engine Braking
Regen Message
High Idle
Off-road Tuning
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Product Description
Manual/Documents
Customer Reviews (9)

This product is not legal for sale in California. Please refer to our product policy page here: Green Diesel Engineering Product Policy

  • Fuel Economy improvements 3-5mpg
  • Very broad torque/performance curve for better drivability
  • For more contents of the GDE Tune visit the EcoDiesel Performance Data page

Please also be informed that:
  • New ECMs from Mopar are blank: there is no software flashed inside and these ECMs are not capable to run the engine/vehicle as-is. They must be configured first.
  • If mailing in an ECM for tuning that is blank or not the original from your vehicle, a $150 setup fee applies to have the necessary steps performed before tuning can be done
  • Blank ECMs or one not from your vehicle returned for the core deposit will be assessed the same $150 setup fee

Also visit our forum for additional information: GDE Forum - Jeep Grand Cherokee EcoDiesel

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Average Customer Review:
 (5.0)
1-6 of 9 12
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by Scott Beall Thursday 14 December 2017

First off, I’m not a car guy (NCG). I love automobiles and I own some nice ones but I’m not the kind of guy to get under the hood and wrench on things. So here’s a review from a NCG. In the summer of 2017 I purchased a 2015 Jeep Grand Cherokee EcoDiesel Summit with 45,000 miles on it. I had been driving a Camry Hybrid that replaced a Yukon and I missed the cargo space to haul equipment around for my business from time to time. I wanted a diesel for the (supposedly) long-lasting engine but mostly for the range between fill ups. I don’t like standing at the gas pump. At 25 MPG and with a 25 gallon tank that sucker can squeeze in 625 miles to a tank or a reasonable 575 miles between gas stops if you like to keep some in the tank for reserve. I was delighted with the vehicle when I picked it up. A luxury vehicle that will climb a mountain and tow like crazy. What I didn’t like was the way it drove. As an NCG it felt like there was a big rubber band somewhere in the drive train. Step on the gas it accelerates, off the gas it decelerates quickly. No coasting allowed. But not quite. Making a left turn out of my driveway with oncoming traffic was interesting. Step on the gas and…nothing. Then it takes off. I don’t need that kind of suspense in my life. I think that’s turbo lag and I think the rubber band feel was the narrow torque range—but NCG. So I ordered the GDE Hot Tune. It came with clear instructions and only took 25 minutes to install. That included finding a wrench and referring to the instructions twice at every step. There are only three bolts to be removed. The top two are the easiest, most accessible, bolts in the entire engine compartment. Right on top. The bolt on the bottom right takes a little reach-around to get at but it’s no problem. Unplug the old ECM, take off the bolts, plug in the new ECM and replace the bolts. The whole process would take less than 15 minutes if you had done it before. One tip: once the unit is installed the start up process requires “key on”. The vehicle doesn’t have a key. It’s a button. Just push the button twice with your foot off the brake and you get the key on condition without the engine starting. I’m a little embarrassed that I didn’t figure this out at first but—NCG. The results are remarkable. It coasts! With a broader torque and power range it drives like a normal car. When you step on the gas the power is there right away. Around town the rubber band effect is gone. The new sound is great. Still diesel but no more clatter. We took a long drive through WV, TN and NC recently. There are some long down grades on the trip. Because I’m comfortable with manual transmissions, I would normally put it into Sport mode and manually downshift to engine brake. With the new tune, I tried leaving it in normal mode and the Jeep just downshifted and did the engine braking itself. It maintained speed within 5 MPH all the way down 3 mile long grades. If someone is driving who isn’t familiar with manual engine braking (or just doesn’t want to bother), this upgrade lets you do long grades without it feeling like Mr. Toad’s Wild Ride. In control all the way. I know that my MPG has increased. Probably between 3 and 6 MPG (75 to 150 miles increased range). So 700 miles without stopping for fuel is reasonable while still leaving 50 miles in the tank. I love it. My wife and dogs—not so much. Downsides? I haven’t seen any. I still think that the Jeep’s gear shifting is jerky. It seems like it revs too high between shifts and then sways you back in the seat after the shift. It kind of shifts like a Harley. Not a big problem, I guess—and definitely nothing to do with the ECM. I’ve ordered the Transmission Tune to tame that issue. So I highly recommend this upgrade. It’ll make your Jeep Diesel drive like a Highlander around town. But it’s not a Highlander. My only complaint is that Jeep doesn’t set their ECMs up like this at the factory. This is how a Jeep should drive.

by Chris Papana Tuesday 28 November 2017

It’s almost the end of 2017, I’ve had this Jeep since April 2014, and I have to tell you I’ve been complaining how lackluster it’s been , slow, lazy... diesel line. I came across this option and this was the best possible overhaul to give it that new car feel I’ve been needing. I read the descriptions before I got it. Read all the reviews, then I read then again carefully after and realized what fly wheel power and to the wheels power of an improvement This made. This is how the 3.0 should have come out of the factory. This is worth every penny to get the most out if a daily car. I’m very pleased with this. I have no complaints. I have just praise of how much of a difference this made.

by Dave Scherer Tuesday 26 September 2017

Just back from a 3700 mile trip to Utah and Colorado. I was already loving the tune, but after being able to use the engine braking in the mountains while pulling my 3500 lb trailer, I love it even more. On several long steep downhills, I was able to just sit back and let the engine do it's thing. I am sure the brakes would have overheated. Love the extra power in the mountains and I know the mileage improved but is hard to track with such mixed driving. Definitely recommend the tune no matter what type of driving you do.

by Brandon Fromm Thursday 3 August 2017

I don't usually write reviews, but I felt this product deserves one. For starters I was skeptical because this tune is really offering quite a package for a fair price. I'll start with the installation. I swapped out the ECM on my lunch break in dress clothes. All in all, it took me 20 minutes and was very simple. When I took my jeep for the first drive after the swap, the responsiveness of the throttle was noticeable right away. No more lag. No more feeling gutless from a stop. The change in power and torque has been a lot of fun. It's relatively simple the spin the wheels even at 20mph, which was impossible before. After finishing the first tank of diesel I noticed my range had improved greatly. The computer told me I was up about 4 miles per gallon, however when I check the math myself it is actually closer to 6.2 miles greater per gallon. On the first tank (while playing in sport mode A LOT) my average fuel economy was up to 28.9mpg. One change I was not aware of was the sound of the engine while ideling. My wife loves the sound of a diesel purr and when she heard the engine after I installed the tune she stopped and said it purred so much better now. I also added the engine break because I live in an area with a lot of hills. I love being able to set cruise control down a hil and have my jeep slow itself down without using the breaks. There are tons of other positives with this tune but I'm sure whoever is reading this is bored by now. Just do yourself a favor and buy the tune, you wil not regret it. One last thing, I took my jeep in for warranty work and replacmenect of all the sensors for the exhaust system as well as the DPF (this was an issue I encountered prior to the tune) and the dealership never noticed a thing, so don't worry. Just tell them you don't want them to update the ecm because you're happy with how it's running.

by Dave Scherer Saturday 8 July 2017

Don't know why I waited so long?? Just over 200 miles with the Hot Tune and mileage is up almost 5 mgp. I love the reduced lag on the turbo and I can already feel the increased pull on the hills I often travel. I decided to purchase it for pulling my Lance trailer. Just wanted a little more torque and can't wait to see how the engine breaking works. Could have used it several times on our trip to Alaska.

by Philip Klaerner Saturday 22 April 2017

Great took 30 mins to install had to transfers a sticker so I won't get a reflash at dealer to be safe. This is well worth it no lag right off the line even cold. After regen mileage was impressive at 75 mph on freeway got all the way up to almost 30mpg. So smooth to accelerate. Almost no down shifting when you want to add throttle especially cold. So my lazy trip home is going to blow my mind on mpg. Reliable, better throttle response and mpg to drool over with more hp. This is a must get for any eco diesel

1-6 of 9 12
 per page
Sort:
Product Description

This product is not legal for sale in California. Please refer to our product policy page here: Green Diesel Engineering Product Policy

  • Fuel Economy improvements 3-5mpg
  • Very broad torque/performance curve for better drivability
  • For more contents of the GDE Tune visit the EcoDiesel Performance Data page

Please also be informed that:
  • New ECMs from Mopar are blank: there is no software flashed inside and these ECMs are not capable to run the engine/vehicle as-is. They must be configured first.
  • If mailing in an ECM for tuning that is blank or not the original from your vehicle, a $150 setup fee applies to have the necessary steps performed before tuning can be done
  • Blank ECMs or one not from your vehicle returned for the core deposit will be assessed the same $150 setup fee

Also visit our forum for additional information: GDE Forum - Jeep Grand Cherokee EcoDiesel

Manual/Documents Customer Reviews (9)
4stars
(0)
3stars
(0)
2stars
(0)
1stars
(0)
Average Customer Review:
 (5.0)
1-6 of 9 12
 per page
Sort:
by Scott Beall Thursday 14 December 2017

First off, I’m not a car guy (NCG). I love automobiles and I own some nice ones but I’m not the kind of guy to get under the hood and wrench on things. So here’s a review from a NCG. In the summer of 2017 I purchased a 2015 Jeep Grand Cherokee EcoDiesel Summit with 45,000 miles on it. I had been driving a Camry Hybrid that replaced a Yukon and I missed the cargo space to haul equipment around for my business from time to time. I wanted a diesel for the (supposedly) long-lasting engine but mostly for the range between fill ups. I don’t like standing at the gas pump. At 25 MPG and with a 25 gallon tank that sucker can squeeze in 625 miles to a tank or a reasonable 575 miles between gas stops if you like to keep some in the tank for reserve. I was delighted with the vehicle when I picked it up. A luxury vehicle that will climb a mountain and tow like crazy. What I didn’t like was the way it drove. As an NCG it felt like there was a big rubber band somewhere in the drive train. Step on the gas it accelerates, off the gas it decelerates quickly. No coasting allowed. But not quite. Making a left turn out of my driveway with oncoming traffic was interesting. Step on the gas and…nothing. Then it takes off. I don’t need that kind of suspense in my life. I think that’s turbo lag and I think the rubber band feel was the narrow torque range—but NCG. So I ordered the GDE Hot Tune. It came with clear instructions and only took 25 minutes to install. That included finding a wrench and referring to the instructions twice at every step. There are only three bolts to be removed. The top two are the easiest, most accessible, bolts in the entire engine compartment. Right on top. The bolt on the bottom right takes a little reach-around to get at but it’s no problem. Unplug the old ECM, take off the bolts, plug in the new ECM and replace the bolts. The whole process would take less than 15 minutes if you had done it before. One tip: once the unit is installed the start up process requires “key on”. The vehicle doesn’t have a key. It’s a button. Just push the button twice with your foot off the brake and you get the key on condition without the engine starting. I’m a little embarrassed that I didn’t figure this out at first but—NCG. The results are remarkable. It coasts! With a broader torque and power range it drives like a normal car. When you step on the gas the power is there right away. Around town the rubber band effect is gone. The new sound is great. Still diesel but no more clatter. We took a long drive through WV, TN and NC recently. There are some long down grades on the trip. Because I’m comfortable with manual transmissions, I would normally put it into Sport mode and manually downshift to engine brake. With the new tune, I tried leaving it in normal mode and the Jeep just downshifted and did the engine braking itself. It maintained speed within 5 MPH all the way down 3 mile long grades. If someone is driving who isn’t familiar with manual engine braking (or just doesn’t want to bother), this upgrade lets you do long grades without it feeling like Mr. Toad’s Wild Ride. In control all the way. I know that my MPG has increased. Probably between 3 and 6 MPG (75 to 150 miles increased range). So 700 miles without stopping for fuel is reasonable while still leaving 50 miles in the tank. I love it. My wife and dogs—not so much. Downsides? I haven’t seen any. I still think that the Jeep’s gear shifting is jerky. It seems like it revs too high between shifts and then sways you back in the seat after the shift. It kind of shifts like a Harley. Not a big problem, I guess—and definitely nothing to do with the ECM. I’ve ordered the Transmission Tune to tame that issue. So I highly recommend this upgrade. It’ll make your Jeep Diesel drive like a Highlander around town. But it’s not a Highlander. My only complaint is that Jeep doesn’t set their ECMs up like this at the factory. This is how a Jeep should drive.

by Chris Papana Tuesday 28 November 2017

It’s almost the end of 2017, I’ve had this Jeep since April 2014, and I have to tell you I’ve been complaining how lackluster it’s been , slow, lazy... diesel line. I came across this option and this was the best possible overhaul to give it that new car feel I’ve been needing. I read the descriptions before I got it. Read all the reviews, then I read then again carefully after and realized what fly wheel power and to the wheels power of an improvement This made. This is how the 3.0 should have come out of the factory. This is worth every penny to get the most out if a daily car. I’m very pleased with this. I have no complaints. I have just praise of how much of a difference this made.

by Dave Scherer Tuesday 26 September 2017

Just back from a 3700 mile trip to Utah and Colorado. I was already loving the tune, but after being able to use the engine braking in the mountains while pulling my 3500 lb trailer, I love it even more. On several long steep downhills, I was able to just sit back and let the engine do it's thing. I am sure the brakes would have overheated. Love the extra power in the mountains and I know the mileage improved but is hard to track with such mixed driving. Definitely recommend the tune no matter what type of driving you do.

by Brandon Fromm Thursday 3 August 2017

I don't usually write reviews, but I felt this product deserves one. For starters I was skeptical because this tune is really offering quite a package for a fair price. I'll start with the installation. I swapped out the ECM on my lunch break in dress clothes. All in all, it took me 20 minutes and was very simple. When I took my jeep for the first drive after the swap, the responsiveness of the throttle was noticeable right away. No more lag. No more feeling gutless from a stop. The change in power and torque has been a lot of fun. It's relatively simple the spin the wheels even at 20mph, which was impossible before. After finishing the first tank of diesel I noticed my range had improved greatly. The computer told me I was up about 4 miles per gallon, however when I check the math myself it is actually closer to 6.2 miles greater per gallon. On the first tank (while playing in sport mode A LOT) my average fuel economy was up to 28.9mpg. One change I was not aware of was the sound of the engine while ideling. My wife loves the sound of a diesel purr and when she heard the engine after I installed the tune she stopped and said it purred so much better now. I also added the engine break because I live in an area with a lot of hills. I love being able to set cruise control down a hil and have my jeep slow itself down without using the breaks. There are tons of other positives with this tune but I'm sure whoever is reading this is bored by now. Just do yourself a favor and buy the tune, you wil not regret it. One last thing, I took my jeep in for warranty work and replacmenect of all the sensors for the exhaust system as well as the DPF (this was an issue I encountered prior to the tune) and the dealership never noticed a thing, so don't worry. Just tell them you don't want them to update the ecm because you're happy with how it's running.

by Dave Scherer Saturday 8 July 2017

Don't know why I waited so long?? Just over 200 miles with the Hot Tune and mileage is up almost 5 mgp. I love the reduced lag on the turbo and I can already feel the increased pull on the hills I often travel. I decided to purchase it for pulling my Lance trailer. Just wanted a little more torque and can't wait to see how the engine breaking works. Could have used it several times on our trip to Alaska.

by Philip Klaerner Saturday 22 April 2017

Great took 30 mins to install had to transfers a sticker so I won't get a reflash at dealer to be safe. This is well worth it no lag right off the line even cold. After regen mileage was impressive at 75 mph on freeway got all the way up to almost 30mpg. So smooth to accelerate. Almost no down shifting when you want to add throttle especially cold. So my lazy trip home is going to blow my mind on mpg. Reliable, better throttle response and mpg to drool over with more hp. This is a must get for any eco diesel

1-6 of 9 12
 per page
Sort:
$749.00
In stock
Grand Cherokee EcoDiesel (WK2) Model Year
Grand Cherokee EcoDiesel (WK2) Tune Purchase
Engine Braking
Regen Message
High Idle
Off-road Tuning
Add to Cart
Share this:

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