GEN 3 DELETED

[MICHGOOBER]

got a 2020 with a delete. starting to lose a lot of coolant but nothing on the garage floor. 2 gallons in the last 1700 miles. I'm no mechanic so thoughts? opinion on the best ecodiesel mechanic in the upper midwest?

 

[Tremper126]

Welcome!
Egr cooler blocked in place or removed? Could be cracked exchanger and going out the exhaust.

possibly head gasket or going into the trans through the cooler, but I feel your shifting would be irratic or it would overflow.
Mechanics working on these are hard to fine but tc diesel is up north/ central if I remember correctly. There was also a place in new Mexico that did them as well.

 

[Ramman1]

got a 2020 with a delete. starting to lose a lot of coolant but nothing on the garage floor. 2 gallons in the last 1700 miles. I'm no mechanic so thoughts? opinion on the best ecodiesel mechanic in the upper midwest?

Turbo cooler line in the valley under the intake.. leaks and steams off immediately after leaking out. Use an aftermarket one with a steel braided line instead of the rubber hose one from Ram.

 

[TC Diesel]

Yes ,if NO signs of coolant in overflow Bootle or in transmission fluid it's likely the cooler line as Ramman1 pointed out.

 

[MaRRaM]

Welcome!
Egr cooler blocked in place or removed? Could be cracked exchanger and going out the exhaust.

possibly head gasket or going into the trans through the cooler, but I feel your shifting would be irratic or it would overflow.
Mechanics working on these are hard to fine but tc diesel is up north/ central if I remember correctly. There was also a place in new Mexico that did them as well.

I had a similar issue. 2021. Don’t have the turbo coolant line issue. All stainless. I had to replace swollen and checked rubber hose to EGR cooler.

 

[8v71]

got a 2020 with a delete. starting to lose a lot of coolant but nothing on the garage floor. 2 gallons in the last 1700 miles. I'm no mechanic so thoughts? opinion on the best ecodiesel mechanic in the upper midwest?

Check The small 6 or 8 mm hose that goes from the top of the radiator to the front top of the the engine, I replaced mine with a 1/4 in or metric equivalent, I missed it until I looked really close and saw the red antifreeze residue midway down the hose because of dispersation from the cooling fans. The FCA replacement hose is really expensive. I used a fuel injection hose from NAPA to fix mine. Good luck

 

[TC Diesel]

Fuel line in some product lines cannot take High temps under pressure ( for X timeframe's ) , I would check the makers Running temps and pressure spec's, the replacement type of hose is expensive for that reason.

 

[BTdriver]

Another possible culprit is the black plastic crossover tube attached to the top of the water pump, just above the pulley. It bolts to the pump, but only has its own rigidity and an O-ring to keep it in the metal tube at the other end. Over time it warps and can get pushed out. They are only about $40 and aren't difficult to access. One might think that when it leaks it would be visible under the truck, but mine didn't until it completely "puked".

 

[PA Steve]

My money is on the short turbo coolant line under the intake manifold. That rubber hose can only last so long under the heat and pressure; eventually, it leaks onto the V of the motor, and initially, the leak is slow enough that the coolant boils off. At some point, it will leak worse, and you'll see coolant dripping off the trans housing.
I'm pretty handy, but not a mechanic, and was able to repair it myself after many hours and discomfort. You will probably want to replace the intake at that time because of the sludge buildup in it. The dealer charge is typically close to $4k, but they remove the truck cab to access the small hose and connections.
Some fixes don't involve removing the cab, and there are many videos, etc., on the topic. Since it is a common issue, you might search for a mechanic who has already done the procedure. Like many repairs, the first time is difficult, subsequent repairs are easier.

 

[BTdriver]

My money is on the short turbo coolant line under the intake manifold. That rubber hose can only last so long under the heat and pressure; eventually, it leaks onto the V of the motor, and initially, the leak is slow enough that the coolant boils off. At some point, it will leak worse, and you'll see coolant dripping off the trans housing.
I'm pretty handy, but not a mechanic, and was able to repair it myself after many hours and discomfort. You will probably want to replace the intake at that time because of the sludge buildup in it. The dealer charge is typically close to $4k, but they remove the truck cab to access the small hose and connections.
Some fixes don't involve removing the cab, and there are many videos, etc., on the topic. Since it is a common issue, you might search for a mechanic who has already done the procedure. Like many repairs, the first time is difficult, subsequent repairs are easier.

I considered that, and while you are right about it being a much more common leak, the OP said the truck has gone through 2 gallons in 1700 miles. When the turbo coolant tube failed on my truck, it was dripping from the bell housing with much less coolant loss. Plus, somebody already mentioned it earlier in the thread.