Coolant leak on driver's side? - Ford Powerstroke Diesel Forum
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Old 10-17-2013, 05:50 PM
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Coolant leak on driver's side?

Hey guys, I have an 08 6.4 with about 111,000 miles on it and while I was switching out a noisy belt & tensioner the other day (thanks to the video posted up here) I noticed some residue of coolant that was dripping out under the driver's side of the radiator and noticed that my coolant reservoir was getting on the low side.

So I filled it up to the bottom of the cold line last night and all is well until I warm it up this morning and notice some fluid dripping out on the driveway from the same spot. I checked on it during my lunch break and sure enough once the truck warms up and then sits the coolant starts dripping out as soon as I shut it off.

My question is, I'm trying to isolate where this is coming from and haven't been successful so far. I've checked a lot of posts on the forums and wanted to post up some pictures to hopefully get some advice. The degas bottle is about an inch and a half below where it was last night, I only drove about 15 miles today.

The light in the picture is pointing to the edge of the radiator, couldn't find any notice of leak in the hoses going into the radiator, nothing noticable on the EGR cooler but it was getting dark when I had some time to check it out. Some white residue on the battery but I had spilt a little when filling up the bottle last night.



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Old 10-17-2013, 05:57 PM
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Also forgot to mention a humming/buzzing noise coming from the upper part of the radiator on the drivers side just under where the battery cable runs. Sounds like pressure or something leaking out but goes away after it cools down a few minutes.
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Old 10-17-2013, 06:01 PM
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Your radiator is leaking. Most likely.
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Old 10-17-2013, 06:22 PM
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Any way to check out for sure? I don't mind taking it in to have Ford look at it but I'd like to make sure I check everything out before I pay out the *** for a new rad.
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Old 10-17-2013, 09:42 PM
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I had the same issue, and had to get my radiator replaced and the hoses updated. There is a recall on the hoses, do a search. I have the premium care warranty so this only cost me $100 deductible, but if you're going to replace you're better off going with a Mishimoto all aluminum. I believe the part on the Ford radiator that fails is the plastic end cap.
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Old 10-18-2013, 04:39 AM
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Definitely not what I was looking forward to. Without any warranty I'll have to end up doing it myself, I was looking at Mishimoto too and it doesn't look that horrible to swap out and while I've been holding off on doing it I'll probably install my EGR delete finally since I have to drain out the coolant anyway.

I'll try and rip it apart this weekend to see if it is actually a cracked radiator, sucks to see that these 6.4's have repeated problems with them.
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Old 10-18-2013, 09:08 AM
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If you're going to rip it apart, might as well only do it once. Check your hoses first and make sure that what is leaking isn't just a hose and it's running down to the radiator. The updated hoses should have a white plastic connector on the end, not black. There is a TSB on the hoses needing to be replaced, so maybe you can see if yours haven't been replaced and take it by the dealer and have them replaced if they haven't been. That may be a free way to have the dealer deal with inspecting the radiator while they are replacing the hoses.
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Old 10-26-2013, 01:54 AM
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I am on my 3rd radiator and I am still under 100k miles. The radiator itself is not that hard to access. Ford calls for 4 hours of labor and the first time I did it I had it done in 2 hours and 15 min. I am kinda mechanically inclined. If I ever run into another issue I will be going Mishimoto.
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Old 10-26-2013, 02:46 AM
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I wish there were mishimotos in stock when I replaced mine about 2 months ago. Def would be better. Look at VISTA-PRO Part # 438400. They have a lifetime warranty I think. The info is on vista pro's website.http://www.vistaproauto.com/uploads/...icy%209-11.pdf

Can get on for like 550 from Rock Auto too. Don't even mess with factory ford.
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