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Old 10-01-2012, 08:03 PM
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Front Hub Clunk/Thump/Knock

On my 2005 PSD w/ 55K miles....I just had the factory 4x4 hubs yanked out (Due to clunking and not wanting to disengage) and replaced with manual Warn hubs. The vacuum hose was plugged off, All new u-joints, bearings and bushings completely replaced for good measure....and there is still a clunking, thumping or knocking coming from the front end when turning half or more steer (Not full, i rub a smidgen on full steer) me and my shop guy are out of ideas. Do you guys/gals have any? My shop guy is thinking the limited slip fluid in the rear is in need of changing. He's wondering if the vibration is traveling up the drive shaft hence feeling it in the front. Please help
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Old 11-15-2012, 08:07 AM
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bump! I have the same issue
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Old 11-15-2012, 11:02 AM
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I'm starting to think its something in the transfer case not disengaging
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Old 11-15-2012, 11:10 AM
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I am going to rebuild my hubs this weekend. I have a suspicion, my problem is that they are staying locked on me.....I know I have a vacuum leak and that is also on the list to fix. I am going to pull mine of tonight and see if they are still locked. The first time I noticed it was when I was trying to find the vacuum leak, but never manually locked the hubs. Last night I was able to manually lock them with some channel locks. I will post what I find out.
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Old 11-15-2012, 01:15 PM
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It is possible you are still engaged. However, you should get a shudder or pull/bucking/binding if it is still engaged.

Going in a different direction, check your swaybar bushings.
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Old 11-15-2012, 05:47 PM
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yip sway bar bushings - check. Every bushing, seal, bearing and such in the front end was replaced.
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Old 11-16-2012, 06:59 PM
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Just got done rebuilding my hubs......the passenger side was sticking and not wanting to disengage......on my initial test run.....it seemed to fix my problem. I have the factory ESOF hubs though.....so I am not sure about your problem now.
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Old 11-16-2012, 07:22 PM
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Yeah neither is the girlfriend....she been trying to figure out my problem too.....lmao. Its seems the more I manually engage and disengage 4x4 it seems to klunk less and less. Now I'm wishing I never did the firmware update on my computer as its not jiving with my edge cts programmer. I found out AFTER I did the update that ford releases firmware updates for the older trucks to purposely rob the engine of power to compensate for wearing and aging parts and the un-reprogram able firmware is fighting the edge program.
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Old 07-11-2014, 03:16 PM
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Quote:
Originally Posted by bigbear75 View Post
Yeah neither is the girlfriend....she been trying to figure out my problem too.....lmao. Its seems the more I manually engage and disengage 4x4 it seems to klunk less and less. Now I'm wishing I never did the firmware update on my computer as its not jiving with my edge cts programmer. I found out AFTER I did the update that ford releases firmware updates for the older trucks to purposely rob the engine of power to compensate for wearing and aging parts and the un-reprogram able firmware is fighting the edge program.
Ive never heard of this and I have the same clunking at half turn.
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