Originally Posted by
Toreador_Diesel
Close....there are actually 2 ways on a 6.0, the other is the EGR cooler.
You can actually go to harbor freight and build yourself a gauge to test the pressure and easily determine what the problem is.
You'll need a T-fitting for 3/8 hose and of course a guage to monitor pressure.
Perform this test when the truck is fully warmed up btw...
-If the pressure rises quickly under hard acceleration, it's the EGR cooler leaking.
-If the pressure rises slowly under hard acceleration, you have blown Head Gaskets.
Good point.
I'd assume in most cases if the EGR cooler is shot, coolant would end up white smoke out the tail pipe though. No always, but usually.
In my case, it didn't need time to build pressure, it was instant. As soon as the truck was started the degass had pressure, and a 3/8" rubber exhaust pipe feeding it.
I wish I would have taken a video now.