Lets play... "Guess that Sound"!

[The Custom Jeep Builder]

Welcome to another exciting game of "GUESS....THAT....SOUND!" hosted by Jeep JL

JL Rubicon.
3.5 Lift
Adams 1350 Driveshafts
Yukon 513 gears
RCVS (1 pc) cad deleted

Plenty more, but not relevant. probably.

in 2wd, significant noise while driving. most noticeable at 40mph +. Increasingly loud/noticeable at hwy speeds.

When placed in 4hi the noise COMPLETELY goes away. Immediately returns in 2

When placed in Neutral the noise stays.

When on or off the gas pedal....same noise.

Noise at first sounded like increased wind noise. Eventually noticed it came mostly from the shifter/trans area and started testing the above.

The noise has the constant sound of what sounds like a partially opened window or leaky top, but to add to that it has a repetitive humm that comes and goes every second or so. This humm is NOT effected by RPM or gear. Same rhythm always.


That pretty much covers that. 4wd does make the sound go away, however....when on decel or on/off throttle theres a slight grindy noise/feel but thats different from the main noise of the thread. Extra credit for input on that.


Ok, the betting windows are now open.

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[Blu bi Kong]

Pull the floor mat and carpet up and check and make sure one of your floor drain plugs didn't pop out.

 

[melendez69]

If this is anything like 'pull my finger,' then I'm out.

 

[GreyFox]

If this is anything like 'pull my finger,' then I'm out.

 

[jlewissystem]

I can’t tell if this is a riddle or if you are trying to troubleshoot.

 

[Gregj]

“RCVS (1 pc) cad deleted”


Welcome to the world of “no locking hubs” front drive line noise. The front drive shaft is turning all the time now.

Gregj

 

[The Custom Jeep Builder]

“RCVS (1 pc) cad deleted”


Welcome to the world of “no locking hubs” front drive line noise. The front drive shaft is turning all the time now.


Gregj

Yea, I am aware of the "slight " additional noise brought on by 1pc rcvs. This is not that. This noise came long after the rcvs and as stated above goes away 100% when 4hi is engaged.

 

[Gregj]

I can’t tell if this is a riddle or if you are trying to troubleshoot.

So, is this a riddle?

Still betting on front drive line noise. Now that it is being driven by the front wheels in 2h all the time it is probably getting broke in good. In 4h it is being driven by the t-case so the noise changes.

Gregj

 

[jeepdabest]

A fart?

 

[UKCATS]

So, is this a riddle?

Still betting on front drive line noise. Now that it is being driven by the front wheels in 2h all the time it is probably getting broke in good. In 4h it is being driven by the t-case so the noise changes.

Gregj

^^^^^^This

 

[multicam]

I used to play this game all the time in my YJ but eventually I rage quit and deleted my account

 

[higbyz]

If this is anything like 'pull my finger,' then I'm out.

Yeah ,like Im not gonna respond with a stupid meme to your post !

 

[mer43]

RCVS (1 pc) cad deleted

Long ago, I thought I read of this issue causing noise in the txfr case.

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