Calling all diesel guys!

I have another question for you pertaining to this '05 truck. The CP3 pump has a weep between the two halves at colder temps. I have read that the bolts can back out and just need to be retorqued. Do you think the seals are actually bad or could it be those little torxs head bolts can back off?
I have seen both happen. What we always did when one came in with that issue was retorque to spec and check to see if it leaked afterwards. Plus it’s free to check that. We didn’t even charge for that step if that solved the problem cause it didn’t take long at all, half the time it was done in the driveway.