I recently troubleshot my egr system. The egr component works fine due to the flaps ability to open and close when vacuum line tested. The problem I am having is with finding an egr solenoid. I've purchased a few used ones off ebay, and found one that worked. My question is can my old ones that I have be rebuilt? Also, are there new or rebuilt egr solenoids available? From what I have researched it seems to be a discontinued part.

Regards,
. Anthony V