Buzzing auto transmission?

clos0791

clos0791

New member
I have a subtle hissing (sort of high pitch) sound when I shift to reverse and drive. No sound in park and neutral. I have a 2015 JKU with low mileage. The sound only shows up when the engine is warm/hot. It does not happen when the engine is cold.

The Jeep drives fine and shifts fine. I only notice the sound in my garage. I read somewhere that it was normal? It does not really bother me but my OCD is why I'm asking you guys.

I really want to avoid taking it to the stealership.

Anyone else hear this weird sound?

Thanks.

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Strodinator

Strodinator

Caught the Bug
That sound I have found is sort of like hearing the gears "chatter" as they shift from stationary. I've never had any problems with noise like that and have also had them when shifting to reverse. I'm sure your Jeep is still under warranty though so if you really aren't sure I bet the dealer could take a look.

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BobNH

BobNH

Member
With my 42rle, it is the solenoid, and as you note, only from reverse.
Can't say what it is for your model, but I would bet on it being the same thing.

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W

webejeepin

Member
My 2016 had an owl hooting sound when I put it into park and turned it off. Dealer narrowed it down to solenoid in the transmission (NAG1 or 5AW580), and replaced it at 6,000km. Now at 50,000kms...and still no owl under my jeep.

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W

webejeepin

Member
webejeepin said:
My 2016 had an owl hooting sound when I put it into park and turned it off. Dealer narrowed it down to solenoid in the transmission (NAG1 or 5AW580), and replaced it at 6,000km. Now at 50,000kms...and still no owl under my jeep.

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Click to expand...
Replaced the solenoid not the actual transmission. 😎
clos0791 said:
I have a subtle hissing (sort of high pitch) sound when I shift to reverse and drive. No sound in park and neutral. I have a 2015 JKU with low mileage. The sound only shows up when the engine is warm/hot. It does not happen when the engine is cold.

The Jeep drives fine and shifts fine. I only notice the sound in my garage. I read somewhere that it was normal? It does not really bother me but my OCD is why I'm asking you guys.

I really want to avoid taking it to the stealership.

Anyone else hear this weird sound?

Thanks.

Sent from my SM-N950U using Tapatalk
Click to expand...
 
S

sparks

Member
I had the same sound in my 2014 2 dealers claimed they couldn’t hear it. Had a Mercedes dealership transmission tech look at it and said it was most likely a sticking solenoid. Suggested I have him upgrade to some “blue top” solenoids, but since it was under warranty I wasn’t paying anyone to do anything.

If dealer says they can’t hear it I believe You have to get trans temp +160° to get it to happen. Open the door and shift between PRND.

Good luck, hope you end up getting it resolved - I ended up trading mine in for 17


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clos0791

clos0791

New member
sparks said:
I had the same sound in my 2014 2 dealers claimed they couldn’t hear it. Had a Mercedes dealership transmission tech look at it and said it was most likely a sticking solenoid. Suggested I have him upgrade to some “blue top” solenoids, but since it was under warranty I wasn’t paying anyone to do anything.

If dealer says they can’t hear it I believe You have to get trans temp +160° to get it to happen. Open the door and shift between PRND.

Good luck, hope you end up getting it resolved - I ended up trading mine in for 17


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Click to expand...
Thanks for the info, it sounds like I have the exact same thing going on. I will make an appointment and use the info you provided.

So did you get your 2014 resolved? before you got your 2017?

Thanks again, much appreciated.

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S

sparks

Member
clos0791 said:
Thanks for the info, it sounds like I have the exact same thing going on. I will make an appointment and use the info you provided.

So did you get your 2014 resolved? before you got your 2017?

Thanks again, much appreciated.

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Click to expand...

No I told them to take care of it after I traded it in. I remember reading on here that a clogged valve body might also cause a the hum/hoot. Could be that too. Just stay persistent on the dealer to fix it and make sure it all gets documented.
 
clos0791

clos0791

New member
sparks said:
No I told them to take care of it after I traded it in. I remember reading on here that a clogged valve body might also cause a the hum/hoot. Could be that too. Just stay persistent on the dealer to fix it and make sure it all gets documented.
Click to expand...
Thanks!
This info will definitely help 😊.

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