Known Radiator issue - Diesel Forum - TheDieselStop.com
6.7L Power Stroke Engine and Drivetrain Discussion of the 6.7L Power Stroke diesel engine and drivetrain in the 2011-Up Super Duty trucks. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.7L Power Stroke engine.

 
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post #1 of 4 (permalink) Old 10-09-2018, 12:35 PM Thread Starter
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Known Radiator issue

I have some questions on this known radiator issue that I am just finding out about unfortunately. 1- I can't tell where I'm leaking from, but it is from the front driver's side somewhere, looks almost like it is coming from the bottom of the radiator as its dry everywhere else. Is this the known issue? 2- What are some thoughts on adding radiator stop leak to something like this as a hope for a quick, cheap fix, or at east delaying the inevitable? Thanks in advance everyone.

2011 F-350 CC SRW, Fx4, Deleted, H&S mini max tuner, S&B Intake, straight piped
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post #2 of 4 (permalink) Old 10-09-2018, 03:36 PM
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1. The spot you describe is where most of the radiator failures occur, so it's probably a radiator. 2. No, I would never put stop leak in a cooling system, especially one of these trucks. Stop leak can plug up things you don't want plugged like the core in the radiator or the heater core.

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post #3 of 4 (permalink) Old 10-10-2018, 12:32 PM Thread Starter
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Thanks gearhead, I appreciate the info!
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post #4 of 4 (permalink) Old 10-10-2018, 05:47 PM
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The end tanks are crimped on so when the trucks flex they can exhibit a leak. Some leaks are very minor seepage or a tad more of a consistent drip/ small puddle overnight. I had my original replaced due to symptoms like yours with another OEM for over 65k miles no issues.

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  Diesel Forum - TheDieselStop.com > 2011 - 2016 Ford Super Duties > 6.7L Power Stroke Engine and Drivetrain

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