What is this sound and why is it so angry
Our '05 unlimited started making this noise from the exact same spot about 2 weeks ago. After reading the posts here, I decided to try a few things before removing the offensive device. Our lj has 53000 miles and I couldn't see how the shaft assembly needs replaced, so I pulled the cap off, and using a can of WD-40 with a long straw, sprayed under the tone ring/wheel, as close to the shaft as I could, I sprayed for about 20 seconds or so. Then I changed the oil, just Valvoline 5W-30. NO MORE NOISE!!! I did talk to the local dealer and they did say there was a recall on 16,000 of these engines, and the oil pump shaft needed to be replaced. Just food for thought. Also, you may want to check daveysjeeps.com for replacement assemblies, he has them used for $20 a piece with the sensor.
I don't know if ours will still need replaced or if the cold outside temps have anything to do with it, It's been in the teens here for a few weeks.