Quote:
Originally Posted by Sheetrockman
Yes I have since installed a coolant filter but that is not the problem with the cooler. it is a poor design and it boils the coolant causing metal fatigue in the cooler radiator thus it leaks.
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The cooler design is fine if you have enough coolant flow to it. When the oil cooler plugs up on the coolant side it reduces the coolant floe to the EGR cooler (they are in series).
For a failed EGR cooler:
The primary cause is poor coolant quality (ie solids in the coolant).
The secondary cause is a plugged oil cooler.
If you have a failed EGR cooler and you replace it and you install a coolant filter, BUT you do NOT replace the plugged oil cooler, you will be installing another EGR cooler.
