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Humming Noise, maybe engine or transmission?

nosepatrol

Member
First Name
Kyle
Joined
Aug 8, 2020
Threads
5
Messages
9
Reaction score
13
Location
Portland, OR
Website
www.nosepatrol.com
Vehicle(s)
2020 Jeep Gladiator Sport Max Tow
Occupation
Business Owner
Just got my 3.6 gladiator back from having the rear main seal replaced. Driving home from the dealership I noticed a new "humming" noise both when idling and at lower speeds. Can't tell if it goes away at higher speeds or just gets drowned out by the tire/wind noise. Based on me just having the rear main seal replaced, could it have something to do with the engine or transmission? There are no codes or warning lights, but this sound is definitely new.
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