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Helicopter sound coming from front of 2001 grand cherokee limited

We replaced driversside axle cause the boot was ripped, drivers side wheel bearing cause it was bad, track bar cause bushings were bad and I still have a loud helicopter sound coming from the front end. it gets louder the faster I go and if I slightly turn the wheel either way it gets a little quieter. Please help its an all wheel drive quad dr.thank you. I want to do the work myself.

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  • blueskysrat
    blueskysrat Jan 16, 2013

    Yes it's full 4w. I will have to check to u joints. I have had the tires blanced twice both times they were unbalanced. The first guys said it was like trying to balance footballs but he got it. The second.guy said they looked good but there 10 years old. I bought them used from a friend. Excellent tread. I will also check ball joints and king pin. We did replace the front hub assembly when we did the bearing. It comes as one unit...I believe. I am just a women lol. Any quick check ideas for any if the suggestions?

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Posted on Jan 02, 2017

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SOURCE: 2000 jeep gc laredo 4x4 4.7 auto The front end shakes

if it shakes over 50 miles per hour, it could be your front tires need balancing. and check your ball joints while you are at it. or king pins if it has that. (they are different from ball joints but serve the same purpose.)

Posted on May 14, 2010

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SOURCE: noise from front end when turning

This is your front hub assenbly.

Posted on May 19, 2009

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SOURCE: noise from front end more so when you are turning

You also could have received a bad axle. Sometimes the rebuilds don't hold good tolerance and can make the same noise you are trying to get rid of. Is it full-time 4wd? Maybe the driveshaft ujoint also.

Posted on May 19, 2009

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SOURCE: bad rear axle bearing and seal on a 2000 jeep grand

the bearing does not always have to be really bad for the seal to fail. Centrifugal force will throw axle grease outward where it gets on the rotor. That can make it feel like the rotor is out of round. If grease got on the brake pads I'd replace them and perhaps even the rotor. As far as the caliper being frozen, possible....check it out when you have it apart. You can have more than one shoe untied at the same time. Not always, but it can happen.
When replacing the seal make sure you put some grease on the lip before putting the axle back in. by doing that it won't fail from dry running before the diff lube reaches it.

Posted on May 21, 2010

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SOURCE: My 1995 jeep grand cherokee

Likely then the tech was wrong and some damage has occurred.
(sometimes it's hard to see) Gear sets are expensive and so are bearings. Only people with the proper tools and experience should attempt a rebuild.
Most often you can find a good used unit end to end in a scrapyard for under $200. (I haven't paid more than $125 for any I have gotten lately). You can put your new axles and hub bearings on the new unit or save them for spares.
One very important thing is to exactly match the gear ratio of the one you are replacing. There should be a tag on the diff cover or you can count the ring gear teeth and divide by pinion tooth count to get that #. Some are also stamped on the edge of the ring gear as well. It takes about a day for an average person (with a helper) to remove and install one on the ground providing you have decent tools, jacks and a bit of experience. Far less time on a lift with power tools.

Posted on Oct 31, 2010

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There is a clacking sound from the left tyre while moving on a rough surface and on low speeds


OK so it's your CV axle most likely during slow revolutions it clacks and makes noises so replace both sides to ensure transmission/engine performance stays optimal to power applied to the road. The other cause of noises in that area are due to the wheel bearings needing replaced usually and sometimes repacking the bearings instead. On your car if the axle passes through the wheel it has to ride on something to control balance and torque across the drive shaft. I would replace both front driver and passenger side wheel bearings and the CV axles on both sides please be smart people and replace parts like these in pairs/ together the reason being after you replace one side you drive a few months or less and the other side goes out almost always soon after the other I would say over 75% of the time let it be bearings/u-joints/CV axles or other crucial parts. Hope this helps please take my word and fix it right the first time and please buy the better parts not the cheapest parts out there if you want quality/ safety than buy the better or best parts never just the good or OK parts

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Well it sounds like your left front cv axle needs replaced,the boot sometimes gets ripped on the axle and flings all the grease out and when the joint gets dry it clicks.The only other thing that could do that is the left front wheel bearing so look and see if the axle boot is ripped if it is its the axle,if not it's probabley the wheel bearing that needs replaced.

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