Coolant leak, rear engine passenger side

dieselappnerd · Oct 9, 2017

I’ve got a coolant leak that seems to be coming from the right rear part of the engine. I’ve been up above and don’t see any drips coming down, it comes at a pretty steady pace, but only once the engine has heated up. 2004 F450 6.0

ghohouston · Oct 9, 2017

Heater core hose likely

6.0 Tech · Oct 10, 2017

Coolant control valve if it has one. You can change out the whole hose, which is what it calls out for on pickups, or the excursion valve is available separately.

Wrxeac · Oct 10, 2017

Agreed, my engine looked very similar to yours when my control valve was leaking.

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dieselappnerd · Dec 16, 2017

It turned out to be the hose back to the heater core, leaking at the T for the coolant filter. I replaced all the upper hoses, and now no leak. Thanks!!

Coolant leak, rear engine passenger side

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