Ecodiesel power derating as temps rise?

[22EcoDs]

Anyone tried the mishimoto radiator? https://www.mishimoto.com/performance-aluminum-radiator-jeep-gladiator-2020.html

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[CrazyCooter]

Anyone tried the mishimoto radiator? https://www.mishimoto.com/performance-aluminum-radiator-jeep-gladiator-2020.html

I replied to your post on the other thread about the potential failures and warranty issues.

 

[22EcoDs]

Ok I talked in length with Bullet Proof Diesel last night over the phone. After nearly 2 years of design, development and testing the best solution they could come up with is a secondary cooling system for the oil. With a stock diesel JT towing a 5500lb trailer they were able to go from 45 mph and 63% max engine load up a long, 6% grade 56 mph with 85% engine load. So they were able to increase engine load at derate/defuel 20 points and speed up 11mph. While not what they wanted, it's a viable price point and easy install with real results. They are looking for someone with a JT that tows with a stock factory front bumper to test one out. Send me an email [email protected] if you are interested, tell me about your Jeep and towing and I will connect you with the right person. Now for those of us with after market winch bumpers and a winch, they are going to use my Jeep as a model for a fifferent version. More info to come.

I thought they were attempting to cool down the coolant not the oil.. this is interesting.

 

[steelponycowboy]

Thats unfortunate. I would like to avoid cycling my oil to a radiator on the front of the vehicle if possible.

I will most likely be looking at the cold case radiator. If we could find a low temp thermostat that would help give more headroom.

Unfortunately Jeep didn't leave much room to do anything else. A cooler under the vehicle was tried and worked goos but the chances of damage off road were too great. They had the same issues with the 392 but they were able to overcome some of them and add the costs into that $100k Jeep. When would have paid $100k

I thought they were attempting to cool down the coolant not the oil.. this is interesting.

Its the oil temps that are excessive 268 degrees is the highest mine has gone, just 2 more and i would have gone into limp mode

 

[Jefe1018]

I’m not sure if I had a true derate yesterday, but based on the circumstance, I believe it is more in line with heat soak on the turbo.

Situation: Drove about 12 miles from home yesterday afternoon, ambient temperature was about 111 degrees. Drive was a combination of city, but mostly highway with no issues. When arriving I unloaded a number of things from the truck, I couldn’t remember if I’d left her running or not for a few minutes at this point as I was kind of in a hurry. 30 minutes later I realized I forgot to pick something up and hopped back in through a parking lot with 0 notice of anything until I merged on to a main street with a 45mph speed limit. Merged with plenty of space until the JT hit 29mph and wouldn’t go faster than that. It was in 2nd gear, wouldn’t shift manually higher than that, just stuck. I pulled over, saw all my oil, coolant, etc. were safe, limped to the store and left it running. 5 minutes I came back and all the power was back. I suppose easy enough to fix but absolutely horrifying in traffic and see why folks who are towing and stop for fuel then try to drive down the road again are furious about this. I get the limitations of the diesel in this platform, but maybe a warning light “Turbo at inefficient temperature, allow engine to idle” message when turbo soak happens would help.

 

[CrazyCooter]

This is one good reason why I never shut my truck off when towing during higher ambient temps. I can't risk the heat soak damaging the oil. Plus when it's 110°, it will take 20 mins for the A/C to recover?

I’m not sure if I had a true derate yesterday, but based on the circumstance, I believe it is more in line with heat soak on the turbo.

Situation: Drove about 12 miles from home yesterday afternoon, ambient temperature was about 111 degrees. Drive was a combination of city, but mostly highway with no issues. When arriving I unloaded a number of things from the truck, I couldn’t remember if I’d left her running or not for a few minutes at this point as I was kind of in a hurry. 30 minutes later I realized I forgot to pick something up and hopped back in through a parking lot with 0 notice of anything until I merged on to a main street with a 45mph speed limit. Merged with plenty of space until the JT hit 29mph and wouldn’t go faster than that. It was in 2nd gear, wouldn’t shift manually higher than that, just stuck. I pulled over, saw all my oil, coolant, etc. were safe, limped to the store and left it running. 5 minutes I came back and all the power was back. I suppose easy enough to fix but absolutely horrifying in traffic and see why folks who are towing and stop for fuel then try to drive down the road again are furious about this. I get the limitations of the diesel in this platform, but maybe a warning light “Turbo at inefficient temperature, allow engine to idle” message when turbo soak happens would help.

 

[Jefe1018]

This is one good reason why I never shut my truck off when towing during higher ambient temps. I can't risk the heat soak damaging the oil. Plus when it's 110°, it will take 20 mins for the A/C to recover?

At least here, it depends on the amount of direct sunlight when it comes to the a/c. The JT has an awesome heating and cooling system tbh, even in these extreme temps. I’m honestly not sure how I feel about this at the moment. Love this thing, but it really just made me mad and potentially risked my life.

 

[Rusty PW]

There is other parameters that will cause limp mode other than just oil temp. Just which we knew them all.

 

[desertratfun]

I’m not sure if I had a true derate yesterday, but based on the circumstance, I believe it is more in line with heat soak on the turbo.

Situation: Drove about 12 miles from home yesterday afternoon, ambient temperature was about 111 degrees. Drive was a combination of city, but mostly highway with no issues. When arriving I unloaded a number of things from the truck, I couldn’t remember if I’d left her running or not for a few minutes at this point as I was kind of in a hurry. 30 minutes later I realized I forgot to pick something up and hopped back in through a parking lot with 0 notice of anything until I merged on to a main street with a 45mph speed limit. Merged with plenty of space until the JT hit 29mph and wouldn’t go faster than that. It was in 2nd gear, wouldn’t shift manually higher than that, just stuck. I pulled over, saw all my oil, coolant, etc. were safe, limped to the store and left it running. 5 minutes I came back and all the power was back. I suppose easy enough to fix but absolutely horrifying in traffic and see why folks who are towing and stop for fuel then try to drive down the road again are furious about this. I get the limitations of the diesel in this platform, but maybe a warning light “Turbo at inefficient temperature, allow engine to idle” message when turbo soak happens would help.

Same thing happened to me! This just from the heat? I live in Tucson and same thing happened after I came back from Las Vegas and then a 2nd time after Phoenix. Only 2+ hour trips and only if I take off immediately after starting it up.

 

[CrazyCooter]

I just do not shut my truck off when traveling in temps over 105 or while towing. Only once did a gas station attendant require me to shut down to refuel in Oregon, but I wasn't towing that time.

Takes too long for the AC to recover anyway!

 

[desertratfun]

I just do not shut my truck off when traveling in temps over 105 or while towing. Only once did a gas station attendant require me to shut down to refuel in Oregon, but I wasn't towing that time.

Takes too long for the AC to recover anyway!

That’s what I’m gonna have to do! Good thing it has only happened these past two weeks in the heat! No issues when traveling 80+ as I was doing that on the big hill from LA to Vegas with no power reduction.

 

[Jeepasaurus_Rex]

Wanted to document my first issue with derating/exhaust system issue, over an accumulated 91k miles (between 2 jeeps) behind the ecodiesel!

It was 110°outside, I was going 82mph (cruise control on), coolant temp climbed to 238, oil temp to 246, Trans temp 201... 60 miles East of Roswell NM.

At this point I had been driving a continuous 7 hours straight with the exception of one fuel stop.

While holding at 82mph I had a sudden loss of power, and dash lights come on.

ESS, CEL, and the Lightning Bolt as well as message "Exhaust System Service Required, See Dealer". The Jeep wouldn't allow me to increase speed at all, but I was able to maintain speeds on flat ground. Going uphill would slow me down and never go back up until I went downhill or got back on level ground.

I limped it the last 60 miles to Roswell in 5th gear (manual mode) to jeep the rpms up in hopes of forcing a regen.

When I arrived in Roswell I let it cool down for a bit, checked for water in the fuel (none found), and then used my Tazer to pull codes as well as reset them all.

After hanging out there for about an hour, I turned it back on and carried on my way as planned. No more issues the rest of the trip, though, the Jeep would get pretty hot. This was about 600 miles into my trip, trip total finished around 2,800 miles over 10 days.

Temperatures averaged
Coolant: 210-232
Oil: 225-244
Trans: 197-201

I have had no issues with derating or power loss since.

 

[desertratfun]

Wanted to document my first issue with derating/exhaust system issue, over an accumulated 91k miles (between 2 jeeps) behind the ecodiesel!

It was 110°outside, I was going 82mph (cruise control on), coolant temp climbed to 238, oil temp to 246, Trans temp 201... 60 miles East of Roswell NM.

At this point I had been driving a continuous 7 hours straight with the exception of one fuel stop.

While holding at 82mph I had a sudden loss of power, and dash lights come on.

ESS, CEL, and the Lightning Bolt as well as message "Exhaust System Service Required, See Dealer". The Jeep wouldn't allow me to increase speed at all, but I was able to maintain speeds on flat ground. Going uphill would slow me down and never go back up until I went downhill or got back on level ground.

I limped it the last 60 miles to Roswell in 5th gear (manual mode) to jeep the rpms up in hopes of forcing a regen.

When I arrived in Roswell I let it cool down for a bit, checked for water in the fuel (none found), and then used my Tazer to pull codes as well as reset them all.

After hanging out there for about an hour, I turned it back on and carried on my way as planned. No more issues the rest of the trip, though, the Jeep would get pretty hot. This was about 600 miles into my trip, trip total finished around 2,800 miles over 10 days.

Temperatures averaged
Coolant: 210-232
Oil: 225-244
Trans: 197-201

I have had no issues with derating or power loss since.

Have you cleaned your DPF injector? My check engine light came on and the code was for P02EE. Took off the injector and cleaned it as it was caked! Light turned off after 20 miles of driving.

I just cleaned the injector, the DPF opening wasn't dirty.

watch

Also, found this:

I'll let it cooldown after long trips from now on.

 

[Jeepasaurus_Rex]

Have you cleaned your DPF injector? My check engine light came on and the code was for P02EE. Took off the injector and cleaned it as it was caked! Light turned off after 20 miles of driving.

I just cleaned the injector, the DPF opening wasn't dirty.

watch

Also, found this:

I'll let it cooldown after long trips from now on.

I haven't, I'll definitely check it out! Thank you?

 

[Rusty PW]

On any turbocharged vehicle. It's best to let it idle for a minute or 2 before shut down. This lets the turbine wheel come down from high speed. Revving the engine up, then shutting down is one of the worst things you can do. You just increased the turbine wheel speed, and shut off it's oil supply.

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