I took a few of the coolant filter install
Another poster alluded to adding a coolant filter... possibly in response to dslteks comments... Nothing would be gained since the debris that can cause grief is on the oil side of the oil cooler.... which sits in the reservoir for the HPOP. The only cure for this is if the tech takes the time to carefully inspect the new parts for any manufacturing defects and/or artifacts... Something he SHOULD be doing, anyway. After all, he IS the last step in the quality control process.