Mysterious Antifreeze loss

[Lord Thor]

After I had the emissions recall done, I have started loosing (invisibly) about a 1/4" of antifreeze about every 80 miles. Nothing is visible externally after searching around the engine compartment and transmission (even with engine hot and running). No oil loss or increase, no problem with power. No discoloration or residuals in antifreeze plastic container. Any ideas would be very helpful, Thanks - Lord Thor

 

[carlhenry]

EGR cooler

 

[cs in Alabama]

EGR cooler

no doubt

 

[John Jensen]

Yep, EGR cooler

 

[Lord Thor]

Thanks, looking into the EGR cooler

 

[cds13ca]

Easiest way to tell is remove egr diffuser tube (4 bolts, 2 10mm, 2x8mm). The tip of it (inside the intake) is supposed to be dry black soot. If it's wet black soot, like tar, molasses, it's your egr cooler. That's how my dealer showed me in under 5 min. He said it's supposed to be dry, you can blow it off. If it's wet goo that you can scrap off with a screwdriver, that's yoru cooler leaking.

 

[Lord Thor]

Took the truck to the dealer since the EGR Cooler falls under the extended emissions warranty. They had another truck in the shop for the same thing, a cracked EGR Cooler. The truck was fixed in 6 hours today and the engine idle is even smoother. Great advice fellow members. Thanks

 

[John]

Took the truck to the dealer since the EGR Cooler falls under the extended emissions warranty. They had another truck in the shop for the same thing, a cracked EGR Cooler. The truck was fixed in 6 hours today and the engine idle is even smoother. Great advice fellow members. Thanks

That's what we like to hear

 

[F. P. Thompson]

I received the a notice 10/31/2019 from NHTSA about the coolant leak. FCA will be releasing a recall notice.