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 Post subject: Vibration when I let off the gas...thoughts?
PostPosted: Mon Nov 02, 2009 4:28 am 
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Drive my wife's Concorde today and I noticed a vibration every time I let off the gas if going over about 45. It almost feels like a tire not in balance, but I wouldn't think that would be noticable only when coasting over about 45 mph...

Basically the engine needs to be at a certain amount of RPM's or something vibrates.

Any ideas or things to check?

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 Post subject:
PostPosted: Mon Nov 02, 2009 8:59 am 
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A tire starting to "sling" its belts can do that. Engine or trans mounts, c.v.'s, tie rods, lower control arm bushings and lower ball joints. Thats where I would start.......


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PostPosted: Mon Nov 02, 2009 3:55 pm 
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check the driveshafts and rear boomerang bushin and what not

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 Post subject:
PostPosted: Mon Nov 02, 2009 5:08 pm 
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The inevitable questions:

-Is there a noise or just a vibration?
-Where do you feel it most? (steering wheel, pedals, seat, etc)
-does braking make it better/worse?
-automatic or manual?

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PostPosted: Mon Nov 02, 2009 5:19 pm 
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Loose nut behind the wheel? :shock:


Gotcha! :wink:

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 Post subject:
PostPosted: Mon Nov 02, 2009 5:53 pm 
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-Is there a noise or just a vibration?
NO NOISE

-Where do you feel it most? (steering wheel, pedals, seat, etc)
STEERING WHEEL

-does braking make it better/worse?
BETTER

-automatic or manual?
AUTO

I noticed it before but my wife was oblivious. I've been driving it while waxing the jeep for the last couple days and its bugging me...

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Fabrications for sale: Aluminum Roof Rack (See Page 9)
Aluminum Gas Tank Skid -- Radiator Skid -- Front Strut Shims
Coming Soon: Rear Bumpers with lots of options


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 Post subject:
PostPosted: Mon Nov 02, 2009 6:00 pm 
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I like that he asks a question about a Concorde and gets the standard answers for the Liberty! :shock:

READING 101=FAILED
:wink: :lol: :lol: :lol: :lol: :lol: :lol:

gotcha jeepin! :wink:

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 Post subject:
PostPosted: Mon Nov 02, 2009 6:04 pm 
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haha, i just cried a little, i'm sorry boiler :oops:

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03 Renegade (Black)
177k miles 3.7L gas - 45RFE
Command Trac / 4.10s
Lift: ft. 790+ rr. JBA4+
The last of the TrailReady Front&Rear Bumpers and TR Rock Rails
Jarhead Offroad light covers
31x10.5R15 RedLetter Grabbers on Blackrock Dunes
L.O.S.T #KD098632


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 Post subject:
PostPosted: Mon Nov 02, 2009 7:25 pm 
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Boiler, check inner and outter tie rods and balljoints up front, I've seen a lot of problem's with them !!!

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 Post subject:
PostPosted: Tue Dec 01, 2009 2:11 am 
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Friend of mine had this problem just a few days ago in his Lancer. (ie, not EVO) lol.

Loose wheel lugs.

Just another of the suggestions that would've been.

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