Review on Enhance Air Quality with Donaldson Replacement Filters for Airdog I - FF100-2 & WS100 Replacements by Justin Abrams

FUEL FILTER NOT WORKING ON MY AirDog II 4G 165 However the waterlock/filter was working. Strike the tab located between the threaded hole and the face of the O-ring on the pump body itself. This will prevent the Donaldson filter from screwing all the way in and not breaking the seal far enough to do its job. Maybe there is a way to change the tab to allow the filter to fully seat, but it was dark and I had limited lighting so I just swapped out the original filter again to finish my day. I'll update this review when I have a chance to investigate the pump and filter configuration further. Thanks from page 2016 GMC Duramax Denali, with AirDog II 4G 165