04 Rubicon - Cricket sound in 4 wheel only
When I shift into 4 wheel high, I get a cricket noise that directly increases as the RPMs (or Speed) increase. It only occurs in 4 high. It is easily reproducible. When I drop it out of 4 wheel it stops after a couple seconds. I have mainly tested it in 4 high and not 4 low yet. I thought it might be front drive shaft or something since it only occurs in 4 wheel and increases with the engine/wheel RPMs. I have to test if it occurs when in neutral but I don't believe it does.
I would remove the front shaft, lube it up with some wd-40 and clean the area around the u-joint as much as possible. Anytime my truck squeaks I just clean it up and its good to go! Good luck man! If that doesn't work just throw in a new u-joint if you can tell which one it is
Originally Posted by Live4Jeeps
Sometimes you can't get any play or movement in the u joints. They could possibly just need greased. Replacing the u joints in a drive shaft is cheap and easy insurance. I have also had the same noise occur in axle joints.
While focus on the front driveshaft is likely correct, a cricket noise is usually the centering ball in the CV joint not ujoints, although it is a good idea to replace all when rebuilding.
When my Jeep was squeaking, and I mean SQUEAKING!, I thought it was that CV joint as well so I removed the DS to get to it and found a ton of gunk sitting in the double cardan (I think that's what it's called) so I cleaned it out, used the almighty WD-40 and it hasn't made a peep since.
Thanks for all the input. I think you guys are right and I am looking to replace the CV (including the Centering ball) and UJoints before the Off road season opens up out here in CO. I will post the results one complete. Thanks again for all the input!
Originally Posted by swans13 View Post
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