Ecodiesel power derating as temps rise?

[22EcoDs]

What about a finned aluminum pan?

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[PJZ]

Over the weekend hooked up our TT (no water, very little gear, truck only me, GVW fully loaded up is 5,500) and took a quick test spin. Did maybe 15 miles, 64* out, some small grades but nothing of significance. Was just about home and oil temp went up to 249 on the dash - Service Electronic Throttle alert and maybe a slight derate, but didnt feel significant. No issues getting the last 2 miles or so back to the house.

Took a drive in the evening and all was fine. Next morning I used remote start and the truck shut off. Went out and started it and CEL was Service Electronic Stability Control. JT was in limp mode and would not go above 15mph and no real throttle input allowed.

Put the code reader on and Turbo Boost Control code displayed. Looked at some of the data log and it said oil hit 252* at 55mph. Tried to call a dealer that has been good to have it looked at - service dept doesn't answer, VM, no call back, state of the game nowadays.

Cleared the code. Checked again and it showed two permanent codes Accelerator Pedal Position.
Truck drives fine and CELs have not returned from normal driving (not towing). Those permanent codes are now gone after driving it around.

No tune or motor mods. I do have a pedal commander. Went ahead and removed that to eliminate any non stock confounders. Also may pull off the giant AEV lights before towing again. Going to give it another try soon and see how it goes.

Did a check of all fuses and checked the PCM connections - suggested in other threads for the codes displayed.

The truck felt great towing. Plenty of power. Braking was good with the Redarc controller. Handled the trailer well. Was very happy with perf on the short run. Never any previous codes or issues (no towing)

All the above gives me a lot of concern about towing. Not expecting to be pulling through the Sierras but should be able to tow local around SoCal. Hoping a clear oil cooler solution comes out of all the great posts in this thread.

 

[Vtur]

I wasn't towing, but had seen my oil temp as high as 269 in 105 degree ambient temp climbing eastern Sierra. No derating.

 

[PJZ]

I wasn't towing, but had seen my oil temp as high as 269 in 105 degree ambient temp climbing eastern Sierra. No derating.

That's pretty high! Good to know you have a little wiggle room on derating if not towing. Used my 5thgen Ram to pull in the Sierras over the summer and oil temp was over 250* on the hemi.

 

[KW80]

Over the weekend hooked up our TT (no water, very little gear, truck only me, GVW fully loaded up is 5,500) and took a quick test spin. Did maybe 15 miles, 64* out, some small grades but nothing of significance. Was just about home and oil temp went up to 249 on the dash - Service Electronic Throttle alert and maybe a slight derate, but didnt feel significant. No issues getting the last 2 miles or so back to the house.

Took a drive in the evening and all was fine. Next morning I used remote start and the truck shut off. Went out and started it and CEL was Service Electronic Stability Control. JT was in limp mode and would not go above 15mph and no real throttle input allowed.

Put the code reader on and Turbo Boost Control code displayed. Looked at some of the data log and it said oil hit 252* at 55mph. Tried to call a dealer that has been good to have it looked at - service dept doesn't answer, VM, no call back, state of the game nowadays.

Cleared the code. Checked again and it showed two permanent codes Accelerator Pedal Position.
Truck drives fine and CELs have not returned from normal driving (not towing). Those permanent codes are now gone after driving it around.

No tune or motor mods. I do have a pedal commander. Went ahead and removed that to eliminate any non stock confounders. Also may pull off the giant AEV lights before towing again. Going to give it another try soon and see how it goes.

Did a check of all fuses and checked the PCM connections - suggested in other threads for the codes displayed.

The truck felt great towing. Plenty of power. Braking was good with the Redarc controller. Handled the trailer well. Was very happy with perf on the short run. Never any previous codes or issues (no towing)

All the above gives me a lot of concern about towing. Not expecting to be pulling through the Sierras but should be able to tow local around SoCal. Hoping a clear oil cooler solution comes out of all the great posts in this thread.

I've pulled a similar weight and less aerodynamic trailer all around the Great Lakes without any overheating issues. Obviously no serious grades around here either but I've mostly done it in the dead of summer with temps in the 80's or 90's.

From the error codes and other factors you listed (trailer weight, ambient temps, minimal elevation changes, and lack of an obvious cut to engine power) it doesn't sound like a strictly engine overheating event IMHO.

You should try to set up logging (with Alpha OBD or similar) on your next test run, so if it does happen again maybe you can capture the sequence of events leading up to the error codes.

 

[PJZ]

I've pulled a similar weight and less aerodynamic trailer all around the Great Lakes without any overheating issues. Obviously no serious grades around here either but I've mostly done it in the dead of summer with temps in the 80's or 90's.

From the error codes and other factors you listed (trailer weight, ambient temps, minimal elevation changes, and lack of an obvious cut to engine power) it doesn't sound like a strictly engine overheating event IMHO.

You should try to set up logging (with Alpha OBD or similar) on your next test run, so if it does happen again maybe you can capture the sequence of events leading up to the error codes.

Thanks for the info. I think I can log the info on my scanner's app. Agree, seems like not enough load to be causing the errors. Will post up when I make my next attempt. Supposed to be camping in a few weeks up past Ventura and want to make it - nothing better than camping by the beach in December.

 

[IOS-XR]

So last month we drove to Orlando. Took the ecoD Gladiator and drove 1100-ish highway miles each way. We actually ran into a speed restriction on the way home based on heat soak/temp. On the way home we were coming through Atlanta. Anyone that's ever driven through Atlanta in the daytime will attest that the traffic usually sucks.

I'd been driving like a total jerk all the way through northern Florida and Georgia. We're talking about 85-90mph+ keeping up with some other people. Got to Atlanta and hit some serious standstills. Got a gap in the traffic but Google/Wayze said there was another slowdown coming up so we stopped on the north side of ATL for fuel, restrooms, and food. Had the Jeep turned off for about 20 minutes during this time.

Got back on the road and straight back into traffic. It was about a 30 minute 4mph-30mph creep along and it finally cleared. Ambient temperature was 85+. Once we cleared traffic I hit resume on the cruise. It was set for 84mph. As soon as I hit 84mph I ran right into a speed limiter. Checked the oil, transmission, and coolant temps. All were fine. Water was 212 I think, oil was high 220's, and I honestly don't remember the trans. Nothing out of whack. I'm assuming it was EGT due to heat soak.

I set the cruise to 80mph for about 15 minutes and then "had" to lean back into the throttle to get around some traffic blobs. I purposely kept my foot in it and went to "over 85". No issues once I assume the EGT had dropped back down. So I guess the first speed "derate" is 84mph.......

Other than that one instance we had no other issues on the whole trip. It was mid 90's down in Florida so my only guess was pushing it hard all morning plus head soak after traffic. The Gladiator was awesome on the highway and a lot of fun to drive on the trip. I will say the Sunrider gets pretty noisy above 80mph..... Probably should have put the freedom panels back on but we wanted to be able to flip the top back in the sun.

ETA - we had the factory 20" wheels and Dueler H/T tires on for the trip so at this point the Jeep was stock as far as drivetrain. We put the Rubi 17" wheels and 33" KO2's back on when we got home. There's only about a 1/2" size difference between the factory HA wheels and tires versus the Rubi/KO2 setup anyway.

 

[PJZ]

So last month we drove to Orlando. Took the ecoD Gladiator and drove 1100-ish highway miles each way. We actually ran into a speed restriction on the way home based on heat soak/temp. On the way home we were coming through Atlanta. Anyone that's ever driven through Atlanta in the daytime will attest that the traffic usually sucks.

A bunch of us have done the vent cut outs and removed the engine cover/foam packing on the top of the motor. Wonder if this might be a case where that makes a difference. Heat could have exited the top vents while sitting in traffic and also when parked. If you have done all that it nullifies our theory that it would help

 

[@californiajeeping]

A bunch of us have done the vent cut outs and removed the engine cover/foam packing on the top of the motor. Wonder if this might be a case where that makes a difference. Heat could have exited the top vents while sitting in traffic and also when parked. If you have done all that it nullifies our theory that it would help

With my poison spyder vent and all the foam silencer crap removed I can now touch the intercooler pipes and top of the radiator even when its 90 degrees out. It reduces the heat soak at low speed drastically.

Next is aftermarket fenders and inner fenders to help even more.

 

[IOS-XR]

I haven't done anything other than a K&N filter to my engine. It still looks like my profile pic......

I've debated doing the cover and foam packing. From my understanding it's just there for noise abatement, correct?

 

[jc99]

Anyone tried trimming the plastic inner fender liners. Saw this over on the JL forum...

 

[PJZ]

I haven't done anything other than a K&N filter to my engine. It still looks like my profile pic......

I've debated doing the cover and foam packing. From my understanding it's just there for noise abatement, correct?

That is my understanding as well. Removed all that plus exhaust delete and cant tell any difference at all from stock. Maybe a little extra clackty clack, but probably in my mind.

 

[Keith Diesel]

I haven't done anything other than a K&N filter to my engine. It still looks like my profile pic......

I've debated doing the cover and foam packing. From my understanding it's just there for noise abatement, correct?

The foam is strictly for sound abatement. Long term you should eliminate the K&N filter. The oiled versions pass larger particle size and not good for compressor wheel life. If you have a cone style, then it is also pulling in hotter air from under the hood, this will reduce fuel economy. The factory setup is still the best available.

 

[@californiajeeping]

Anyone tried trimming the plastic inner fender liners. Saw this over on the JL forum...

I trimmed some triangular holes in mine just to let some heat out. Doesnt do anything really.

 

[M390]

I haven't done anything other than a K&N filter to my engine. It still looks like my profile pic......

I've debated doing the cover and foam packing. From my understanding it's just there for noise abatement, correct?

K&N’s are trash, especially for a diesel application

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