Definitely removing valve covers at a minimum tomorrow to see if I see anything. I did notice coolant dripping from the exhaust. But not sure if it was from internally or externally.
Cummins N14 ate coolant. Locked up
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Kruse Family Farms, Mar 31, 2025.
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My quick glances on the side of the road between calling towing, rentals, and shops. It seemed like coolant blew from the front all over everything. I almost thought it was a failed water pump to start. Till I tried to restart it. Also when I pulled the dip stick it didn't really look that milky...lots of coolant externally all over the place. I was expecting the oil to be super milky but it wasn't. Going to check that again in the morning. Oil temp never got super hot and coolant temp never got super hot either. Coolant reservoir was empty when I opened it though. Plus the horrible clanky sounds and the engine not wanting to spin over with the starter.
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Only had time to pull the dipstick this morning when I stopped by to grab my trailer. Oil is about 3-4 gallons over full. So there is the coolant. Didn't see any holes in the block. Honestly going to look into a Cummins reman. I need something fast and would prefer a decent warranty on it. Being that this was "overhauled" by a Peterbilt dealership before I got it and I assume popped a head gasket at 400k with no warning...I don't want to do this every 400k. These engines should go 800-900k.
Diesel Dave and Big Road Skateboard Thank this. -
Diesel Dave and Kruse Family Farms Thank this.
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Diesel Dave and Big Road Skateboard Thank this.
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Diesel Dave and Kruse Family Farms Thank this.
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Whoops misclicked. I thought of that with the Detroit. They apparently make a harness as well for like 800 bucks brand new. If you had a pick of those 3 what is your preference? I have heard great stuff about 60 series and 3406. Haven't really heard much about 6nz. I am least familiar with car but I know people love them.
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I would go Cat in a swap. Even thought about it myself the last few weeks. Keep core charge in mind when thining about a swap.Diesel Dave Thanks this. -
I just asked my parts guy
2WS core is 8500 ish
6NZ 15K ishDiesel Dave and Kruse Family Farms Thank this.
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