Coolant Reservoir Cap Leak - Ford Powerstroke Diesel Forum
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post #1 of 6 Old 09-18-2011, 09:02 AM Thread Starter
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Coolant Reservoir Cap Leak

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First I want to thank everyone for making this site a great resource for 6.0 owners, I've found this site very helpful for repairs on my new 04 6.0 diesel that I purchased in May 2011!

Here's an issue I noticed, and wanted to get your opinions if anyone has seen this before. Since this is a new truck for me (an I do my own mechanic work) I've been inspecting the truck for issues since I've bought it. This is the second time I've noticed this.

Problem:
There have been splashes and drops on top of the coolant reservoir cap and tank. It also has seemed to make it to the coolant lines below the tank as well as the air intake line.

It seemed weird since they are drops and not pools or lines from coolant running down.

Is this just a bad cap or something else?
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post #2 of 6 Old 09-18-2011, 09:04 AM
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Could just be a bad cap. Cheap to replace. Make sure it is not too full. The "min" mark is the new "max".

2006 F350 CCLB KR FX4

stock...
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post #3 of 6 Old 09-18-2011, 09:41 AM
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clean the area off real good and see how long(or under what conditions) it takes to come back

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post #4 of 6 Old 09-18-2011, 09:50 AM Thread Starter
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Quote:
Originally Posted by sinner6.0L View Post
clean the area off real good and see how long(or under what conditions) it takes to come back
I did, it took about a month for it to happen again.

I read somewhere that ford issued a new replacement for the cap. If that's so, does anyone have a part number or know the difference?
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post #5 of 6 Old 01-05-2016, 09:23 AM
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I'm dealing with the exact same thing. I have been filling it to the MAX line when it is cold. and its never fallen below the min line. It's just a couple drops around the cap like yours and I bought a new 16 psi cap today. I hope it is nothing major!
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post #6 of 6 Old 01-05-2016, 09:50 AM
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stop filling the degas up.... the 6.0 is known to hide coolant and the min line is actually the max on old jugs

GD - 06 CCSB FX4 Lariat
Quote:
Originally Posted by G8orFord View Post
My magic wand broke a few years back when my crystal ball fell on it. Ruined the ball too. So we're going to have to figure this one out another way. YOU NEED A MONITOR or at least a good scanner.
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