coolant in valley?????

[bugstroke]

well we got a 04 f350 at work with a coolant leak. jacked the back all the way up then let it down and coolant ran on the floor. what i am asking is what is in or around the valley that could be leaking. could the head gaskets be physically leaking or maybe egr cooler or how about the intake?

[ifish424]

i don't know exactly what it is called but if its in the valley i would guess it is coming from the little orange heater hose that connects to the pipe coming out of the bottom of the egr cooler. if you look just below the front of the turbo pedestal you will see it. i think its pretty common to replace those. they are a royal pain to get off too...you could do a pressure test to help find it but on top of the engine i'm pretty sure there really isn't anywhere else it could be leaking from. If you blew a headgasket you would be burning coolant, you wouldn't see it leaking

[forddieseldoctor]

the egr cooler hose doesn't always leak under pressure. some leak only cold with low pressure and +1 on the headgasket not leaking externally. never seen it before.

[hpprose]

In the valley you have the EGR cooler. There is an o-ring that seals the connection into the intake (doubt that is leaking unless you have had work done recently).

On the other side of the EGR cooler, there is a hose (orange or blue depending on what year you have). That hose could have gotten cut.

There is also, a hose that is on top of your intake manifold that goes back to the Degas bottle.

Then you, also, have the oil cooler, which flows coolant.

In addition to these places to look, there is a seal that is between the front cover and intake manifold. If you have had work done recently, that may be leaking (generally when they leak, THEY REALLY LEAK.

[DieselFab67]

Originally Posted by hpprose

In the valley you have the EGR cooler. There is an o-ring that seals the connection into the intake (doubt that is leaking unless you have had work done recently).

On the other side of the EGR cooler, there is a hose (orange or blue depending on what year you have). That hose could have gotten cut.

There is also, a hose that is on top of your intake manifold that goes back to the Degas bottle.

Then you, also, have the oil cooler, which flows coolant.

In addition to these places to look, there is a seal that is between the front cover and intake manifold. If you have had work done recently, that may be leaking (generally when they leak, THEY REALLY LEAK.

I've had some luck just twisting the hose that connects the EGR cooler to the oil cooler. Re-seats the o-rings and no more leak