Ecodiesel power derating as temps rise?

[Rubiman]

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Can you send the IOS link?

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[CreepyJeepy]

Can you send the IOS link?

https://apps.apple.com/us/app/car-scanner-elm-obd2/id1259933623

 

[Rubiman]

Yhanks

https://apps.apple.com/us/app/car-scanner-elm-obd2/id1259933623

Thanks!

 

[Rat2Desert]

Finally got a chance to tow my trailer today on a test run. I have a 20' vintage Silver Streak, supposed empty weight is 2500, likely closer to 3000 with some extra stuff and water inside. Tongue weight is supposed to be 250. No load other than myself in the truck.

Outside air temp was 105, the main grade I went up was 5-6 miles at 6 degree gradient, with some rolling grades after. Elevation gain was about 3,000 feet. This was I-5 in Los Angeles from Castaic up to Pyramid Lake. AC was on all the time.

Overall, I was able to hold 55-65 (and often faster if I wanted, but in CA we're limited to 55 towing). On the main grade I maintained 45, watching the EGT gauge and trying to not exceed ~1,100. Also, manual shifting almost the whole time. Oil bounced to 260 once, water got up to 235 or so.

Most useful thing for me was watching the EGT in different gears. Maintaining 45, 4th gear kept me right at 1,100 on the EGT. 5th gear spiked to about 1,250. I moved between 4th and 5th several times and the EGT difference was a consistent 100-150. Intake temp was 160 during the slow, steep section, dropped to 120-140 on more gradual hills.

Also noticed that just 2-3 MPH could make 100 degree difference on the EGT, maybe 3-5 on oil and/or water.

Overall I'm pretty pleased, I can live with some slow hills as long as I have a way to monitor crucial temps and keep the engine happy. It seems that limiting my speed based on a fairly conservative EGT keeps the rest of the temps under control and hopefully keeps me out of derate territory. Thanks to @CreepyJeepy for the OBD dashboard and inspiration to get it set up.

I have some long distance towing coming up in a week, I'll have a full load of gear and will be heading to Wyoming. I'll be tracking and reporting results after the trip, probably about 3,000 miles by the time I'm done.

 

[briandmiles]

What was the fix? A force regen?

Yes, they did a forced regen. They said it shouldn't work because it only showed 29 percent full but when it was done they drove it around and never had another problem. I have had it derate since then but it didn't throw the exhaust code.

Brian

 

[Rubiman]

Do you guys think having an
iDRIVE Throttle Controller
for the lag would cause issues?

 

[Red_5]

I was just watching YouTube video and a diesel Gladiator derated while they were on a trip. It was loaded for camping but towing. In his case, after stopping a dealership, it turned out to be a dirty engine air filter. Might be something to keep an eye on and regularly change.

 

[WXman]

Mine is still broken. I towed on the freeway again today, uphill at times, with a winch right in front of my grille, and my coolant ran 205 with oil at 225 the entire way. Can't figure out why no matter what I do mine won't overheat.

 

[Sduncan]

Hmmm... yesterday I flat towed my 3400lb TJ to the coast (Pismo Beach) on Hwy 46. Outside temps were 95 ish. I saw the coolant as high as 236, oil temp spiked to 257, trans never over 205. I wasn’t pushing it and was maintaining 60-70 depending on grade and traffic. I’m a gear head and have always been nervous with temps at these levels.
The consensus seems to be the the diesels have barely sufficient cooling and do run warmer than most. This basically sucks. So now I’m thinking “ would a good engine oil cooler help? Where to mount it? Is there any way to increase air flow through the radiator and then out of the engine compartment? And so on... There’s only two things I’m kind of disappointed with.. the high operating temps and the completely inadequate front spring and shock rates that bottom out if I pull into my driveway too fast. The suspension I know how to fix and am waiting on parts to arrive, the cooling is another story that I’ll have to research.

 

[Jefe1018]

Mine is still broken. I towed on the freeway again today, uphill at times, with a winch right in front of my grille, and my coolant ran 205 with oil at 225 the entire way. Can't figure out why no matter what I do mine won't overheat.

This made me chuckle, I’ve been watching this thread carefully since ordering mine. Your videos helped put a nail in the coffin to convince me on the oil burner.

 

[Wattsimages]

Bullet Proof Diesel should have a working prototype on my JTRD next month.

On side note I was going up a 4 mile 6% grade last night. Before I hit the summit I could smell hit oil. Coolant temp was 242 and oil temp was 264. Outside temps 82 with 60+ humidity. Started the climb at 65mph and at summit was down to just above 50mph.

Any updates on Bullet Proof Diesel?

 

[steelponycowboy]

Do you guys think having an
iDRIVE Throttle Controller
for the lag would cause issues?

I have had nothing but problems with the iDrive on three different Jeeps. Almost had my warranty voided on my Wrangler due to using it. They replaced it twice and I've finally trashed it. After a few thousand miles it caused all kinds of throttle control issues causing the jeep to stall, buck and kick and lose power. Removed it entirely on my JT and everything back to "normal"

 

[steelponycowboy]

Any updates on Bullet Proof Diesel?

Not since I had my Jeep in for them to go over. Got a call from the GM there a few weeks ago saying they are working on the problems and went out and bought a diesel JT so they can have something in house to figure out solutions.

 

[steelponycowboy]

Hmmm... yesterday I flat towed my 3400lb TJ to the coast (Pismo Beach) on Hwy 46. Outside temps were 95 ish. I saw the coolant as high as 236, oil temp spiked to 257, trans never over 205. I wasn’t pushing it and was maintaining 60-70 depending on grade and traffic. I’m a gear head and have always been nervous with temps at these levels.
The consensus seems to be the the diesels have barely sufficient cooling and do run warmer than most. This basically sucks. So now I’m thinking “ would a good engine oil cooler help? Where to mount it? Is there any way to increase air flow through the radiator and then out of the engine compartment? And so on... There’s only two things I’m kind of disappointed with.. the high operating temps and the completely inadequate front spring and shock rates that bottom out if I pull into my driveway too fast. The suspension I know how to fix and am waiting on parts to arrive, the cooling is another story that I’ll have to research.

I feel your pain. My spring and shock issues were fixed when I went with the Mopar 2" lift. Made a big difference over the factory Rubicon suspension and shocks.

My biggest disappointment is the "over heating" issues, power de-rating and now my MPG over the last 7K miles has been 14.7. My 1st 7K miles it was 24.6. I've lost 10mpg and the dealer has no idea why. Same old explanation, the eco diesels are trouble. Feeling like I should have got the 3.6 and put a supercharger on it.

 

[Rubiman]

I have had nothing but problems with the iDrive on three different Jeeps. Almost had my warranty voided on my Wrangler due to using it. They replaced it twice and I've finally trashed it. After a few thousand miles it caused all kinds of throttle control issues causing the jeep to stall, buck and kick and lose power. Removed it entirely on my JT and everything back to "normal"

Got rid of mine as well....

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