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Old 07-12-2015, 10:33 PM
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Weird noise when braking and shifting from 5th to 4th gear

So I was noticing my Grand Cherokee was making a weird noise when I would be braking and the gears going from 5th into 4th. It is hard to describe the noise and it isn't very loud, so it would be really hard to get it on video, but it almost sounds like a siren from a distance. Does anyone else have this annoyance or issue with their GC? Also if you do what did you/dealer do to fix it?

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Old 07-14-2015, 05:03 PM
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Re: Weird noise when braking and shifting from 5th to 4th gear

I only have a small thump from 5th to 4th and 3rd to 4th. It only occurs at temps less than 45 C or 113 F. I have trouble getting the trans temp to rise quickly, I believe we have an additional trans cooler in Aus, so the issues lasts about 10 mins of driving.
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Old 07-15-2015, 10:23 PM
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Re: Weird noise when braking and shifting from 5th to 4th gear

Mine doesn't thump it makes a sound as if you're hearing a siren in the distance and you can hear it when the radio is off and the air isn't blowing full speed.
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Old 07-16-2015, 08:27 PM
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Weird noise when braking and shifting from 5th to 4th gear

Is it more like a whistle. Look for a thread called high pitch whistle while coasting. There's a video. Mine does it as well. Every time I take to dealer they say can't replicate.
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Old 07-17-2015, 01:23 AM
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Re: Weird noise when braking and shifting from 5th to 4th gear

Quote:
Originally Posted by My1stJGC View Post
Is it more like a whistle. Look for a thread called high pitch whistle while coasting. There's a video. Mine does it as well. Every time I take to dealer they say can't replicate.
Just watched the video. Mine isn't making that noise. Also mine only happens while I'm braking and the gears are going from 5th to 4th. The only thing I'm worried about is that my Jeep will be out of warranty and if my problem is a potentially serious problem I'm going to have to put money into it (which I don't want to do because its a lease).
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Old 07-17-2015, 09:23 AM
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Weird noise when braking and shifting from 5th to 4th gear

Is this with the Pentastar 3.6??

I have a new GC, 3.6, my downshifting is all wonky/clunky when coming to a stop. Not horrible but pretty annoying and it makes coming to a smooth stop pretty difficult.

I came from a 2014 GC 5.7, no shifting issues whatsoever.

Also, shifting 1-2 and 2-3 it makes a noise when accelerating aggressively. Like a squeak/grind noise.

But I do not have any other noises upon regular driving/shifting.

I haven't been to the dealer yet. I only have 800 miles on it, got it a week ago today (Friday).
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