Transmission problem in reverse -
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Go Back > Models > Jeep Grand Cherokee & Commander Forums > WK Grand Cherokee & XK Commander Forum > Transmission problem in reverse

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Unread 07-01-2015, 08:19 AM   #1
Registered User
2005 WK 
Join Date: Mar 2013
Location: Newton, MA
Posts: 108
Transmission problem in reverse

Hey guys, so when I shift my car from drive to reverse I've been getting a grinding noise lately. Can't seem to figure it out I've done some research and heard it might be a pinion bearing. Any one else encounter this. I have a 2005 WK with the hemi and Qudra drive 2.


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Unread 07-03-2015, 08:47 AM   #2
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2006 WK 
Join Date: Apr 2008
Location: City of Trees
Posts: 2,218
Where does it sound like the "grinding" is coming from.......trans. area, diff. area, xfer case area, etc.? Just a few questions to get a little more info:
---Have you checked the fluid level and fluid condition of the transmission, xfer case and diffs.?
---Does it happen when you shift from reverse to drive?
---Does it do it just on the gear transition, or when its moving in reverse too?
---How does the transmission upshift/downshift?
---Any roughness, slipping, hesitations from the trans.?
---When is the last time the transmission, xfer case and diffs. have been serviced?

I can't imagine it being a pinion bearing grinding. If it were a bearing I would think it would be more a growl or continuous noise both going forward and in reverse, not just when shifting from drive to reverse. Not having heard it, there are a number of things that could be causing it......driveshaft(s), transfer case, transmission, front diff. bushings, either or both diffs., just to name a few.
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