Question for the Jeep experts
I have a 2007 GC as a daily driver and my Toad. 4.7, 4wd It has developed a hum, it seems to be a harmonic issue almost. It starts at about 32 mph, gets louder until about 35 and stops between 38...
Forum Discussion
dodge guy wrote:
From a 30 year Jeep tech, it sounds like you’ve got a rear pinion bearing starting to fail!
This was the first thing I thought of when he said a hum at different speeds. My truck started doing the same thing. It started around 45mph and went away about 55mph. One of the pinion bearings was wearing out. Got the bearings replaced and the noise went away.
