The “Achilles heel” of the 6.0L Power Stroke is heat management. EGR coolers are prone to crack internally and cause coolant to be introduced into the intake manifold and down into the cylinders. A big sign that your EGR cooler is bad is the clouds of white smoke the truck will emit. If this problem is not taken care of, other issues will arise. Bent connecting rods due to hydro-locking are just one expensive component that can be the result of a bad EGR cooler that is not taken care of. This section will take you through the steps to replace a bad EGR cooler.