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I have a 2012 freightliner with cummings engine that will…

Customer Question
I have a 2012...

I have a 2012 freightliner with cummings engine that will lose 1/2 gallon to 1 gallon of coolant every 200 miles . can see no leaks . smells like going to exhaust. can you help?

Mechanic's Assistant: What is the complete model and serial number of your machine?

I do not have with me

Mechanic's Assistant: Are you fixing this yourself? What have you tried so far?

I AM NOT FIXING . BUT TRUCK HAS BEEN SETTING AT A REPAIR SHOP FOR 30 DAYS. I BELIEVE THEY ARE AFRAID TO TRY ANYTHING

Mechanic's Assistant: Anything else you want the equipment mechanic to know before I connect you?

NOT THAT I CAN THINK OF

Submitted: 6 months ago.Category: Medium and Heavy Trucks
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Answered in 5 minutes by:
1/4/2018
Technician: cumminsdr, Mechanic replied 6 months ago
cumminsdr
cumminsdr, Mechanic
Category: Medium and Heavy Trucks
Satisfied Customers: 3,847
Experience: All types of Cummins applications
Verified

It is a failed EGR cooler causing your issue. And a simple cooler inspection for coolant in the outlet and inlet sections of the cooler would confirm this EGR cooler should be dry inside.When the egr cooler fails it allows coolant to be pushed into the exhaust and burn off. I would still check the oil level and make sure your oil is not overfull by a lot, that would mean internal leakage of the head gasket or liner seals. I would get your truck out of that shop and have a cummins shop look at it. If the egr cooler leaks bad enough it can actually get into the cylinders and lock up the engine. You aftertreatment system would need to be checked for damage too, Most cases a regen will get the coolant out. In severe cases the DPF is cracked and would need to be replaced. Please take a moment to Rate/Accept my service. Thank you

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Technician: cumminsdr, Mechanic replied 6 months ago

Hi , Just following up to see how everything went. Please Take a moment to Rate/Accept my service​

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Technician: cumminsdr, Mechanic replied 6 months ago

Any luck on finding a repair shop that will properly do the job?

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