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humming from front axle
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=3&t=79511
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Author:  Eletrikhellfire [ Wed Jul 02, 2014 12:53 pm ]
Post subject:  humming from front axle

I have an 05 liberty with 215,000 miles on her. I just had the transfer case rebuilt with the steel gears new front brakes (CPR) and a right front wheel bearing all within the last 3 weeks( this got rid of part of my humming noise). A month or 2 prior to all this work I started getting a humming noise (and vibration in the floorboard and slight vibration in steering wheel) from the front end above 40 mph. The noise didn't change when making a turn telling me it wasn't a wheel bearing. I had the truck up on 4 jack stands and put it in full time 4 and couldn't get it to humm or vibrate. Now I can hear and feel the noise above 20 mph any ideas ? I put about 112 highway miles a day on her

Author:  tommudd [ Wed Jul 02, 2014 2:21 pm ]
Post subject:  Re: humming from front axle

Two items to check
Rear CV on the front driveshaft ( rear boot goes bad allowing dirt/moisture in and bearings go bad)
Intermediate shaft / CV on the right front, (plines fuse together/ wear out )

Both will cause humming like noises and vibrations and both are a common issue

Author:  Eletrikhellfire [ Wed Jul 02, 2014 4:34 pm ]
Post subject:  Re: humming from front axle

Thanks when I had the transfer case rebuilt they told me there was a little bit of play in that front shaft going into the axleif I took that front drive shaft out can I Drive the truck without fluid leaking everywhere just to try to pinpoint which one it is?

Author:  tommudd [ Wed Jul 02, 2014 5:33 pm ]
Post subject:  Re: humming from front axle

Eletrikhellfire wrote:
Thanks when I had the transfer case rebuilt they told me there was a little bit of play in that front shaft going into the axleif I took that front drive shaft out can I Drive the truck without fluid leaking everywhere just to try to pinpoint which one it is?


Yes you can remove the front driveshaft and drive it no problem, you can also remove the CVs and Intermediate shaft and drive it. Make sure you plug up the hole on the front diff though if you remove the CVs

Author:  Eletrikhellfire [ Wed Jul 02, 2014 5:50 pm ]
Post subject:  Re: humming from front axle

Thanks I'll keep you posted your help is much appreciated

Author:  Eletrikhellfire [ Wed Jul 02, 2014 6:50 pm ]
Post subject:  Re: humming from front axle

so I took out the front drive shaft and that took care of half of the noise you're right the boot was torn and dirt was in there making the shaft bad now I have to take out the right front CV joint to see if that takes care of the rest of the noise

Author:  tommudd [ Wed Jul 02, 2014 6:58 pm ]
Post subject:  Re: humming from front axle

Well thats 50% or maybe more of the problem then :wink:
Driveshaft is an easy and fairly cheap repair

Author:  Eletrikhellfire [ Wed Jul 02, 2014 7:05 pm ]
Post subject:  Re: humming from front axle

$500 from AutoZone

Author:  tommudd [ Wed Jul 02, 2014 7:08 pm ]
Post subject:  Re: humming from front axle

Eletrikhellfire wrote:
$500 from AutoZone



What front driveshaft??
No you replace the end, takes maybe 10-15 minutes since you already have it out. Cost is under 65 bucks
http://www.driveshaftparts.com

Price: $45.00
Product ID : ME807

OH and another thing if you need any CVs up front, do not buy from *utozone etc, only NAPA remanned ones

Author:  Leeann [ Wed Jul 02, 2014 8:14 pm ]
Post subject:  Re: humming from front axle

Direct link:
http://www.driveshaftparts.com/cv-joint ... 1999-2004/

Author:  Eletrikhellfire [ Wed Jul 02, 2014 8:59 pm ]
Post subject:  Re: humming from front axle

That end of the shaft is good but the end Travolta to transfer case is garbage.

Author:  Leeann [ Wed Jul 02, 2014 9:17 pm ]
Post subject:  Re: humming from front axle

That is the transfer case end. The differential end doesn't often fail.

Author:  Eletrikhellfire [ Wed Jul 02, 2014 10:16 pm ]
Post subject:  Re: humming from front axle

When i followed that link it says grand Cherokee does it matter ?

Author:  Leeann [ Wed Jul 02, 2014 10:21 pm ]
Post subject:  Re: humming from front axle

Look under Description for the list of vehicles it covers.

Author:  Eletrikhellfire [ Wed Jul 02, 2014 10:35 pm ]
Post subject:  Re: humming from front axle

Thanks you've been a big help

Author:  The_dealer [ Wed Jul 02, 2014 10:40 pm ]
Post subject:  Re: humming from front axle

Just for the record, I used the same one for mine. Install was pretty easy and it works perfectly.

Author:  Leeann [ Wed Jul 02, 2014 10:43 pm ]
Post subject:  Re: humming from front axle

No problem.

I have the kit on my toolbox, to be installed this weekend.

Author:  Eletrikhellfire [ Wed Jul 02, 2014 10:57 pm ]
Post subject:  Re: humming from front axle

Hope all goes well

Author:  Leeann [ Wed Jul 02, 2014 11:03 pm ]
Post subject:  Re: humming from front axle

Thanks :)

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