1088C0F8-9481-43CC-AD98-3CB1B12179F6.MP4
Had evap leak due to fuel pump ring leaking, replaced with GM certified oem pump Now it makes this noise, I never noticed it with the old pump but I guess it could have been there before. Runs fine, starts fine, no noticeable power loss, fuel milage hasn’t changed. Started making noise as soon as I changed the pump.