Originally Posted by
slamndually
thank you. EGR cooler is good than
That's jumping to a conclusion pretty quick. What symptoms caused you to suspect the cooler? Are they still there? UGA33 describes the symptoms when things have gotten pretty bad. It can be leaking long before it reaches that point.
This TSB describes how to diagnose.
09-8-3*** COOLANT LOSS - 6.0L