Upper Radiator Hose - Ford Powerstroke Diesel Forum
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Old 11-29-2012, 06:27 AM
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Upper Radiator Hose

I have a 2010 6.4L. I replaced the upper hose already with the newer model with two o-rings. That worked for 10K miles but now I am seeing the same intermittent leak from the top of the hose. Any advice on what to do next?

Thanks in advance for your response.
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Old 11-30-2012, 04:14 PM
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are you sure it's not the lower hose? they leak just as often and will drip coolant in the same spot on the ground
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Old 11-30-2012, 06:51 PM
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It's definitely the upper hose, I can see the leak coming from the upper part of the hose, where it connects to the block.
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Old 12-01-2012, 12:53 PM
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it doesn't connect to the block, it connects to the thermostat housing. consider changing that and the thermostats while your at it. corrosion can get built up on the coupler, i've never seen a new style hose leak but always wondered what would happen if the sealing surface was pitted enough
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