Question about 2002 Jeep Grand Cherokee

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My 2002 jeep grand cherokee drive is not as smooth as when i bought it in 2002 for several years. I had 90000 mile service 3 months ago. that did not sove the problem. I replaced all 4 fromt and rear shock and struts and that did not work. anything else i can do? I want to get back the feeling when I bought the car new and it drove so smooth on whatever road condition

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Quick answer to a complicated question: There is far more to suspension than just your shocks etc. Every suspension component that moves has a joint or bushing. Because they move, they wear. When a single component wears enough, it fails inspection and you replace it. BUT, the combined wear on all the other components, though they individually are not worn enough to fail any inspection still total far more play in the suspension than you had when new. Additionally, over time the springs get old and loose some "springiness"
You technically could replace all the components but the cost would be extremely high and if you did it over time, by the time you put the last part in, you could start all over with the first one you installed.

Posted on Aug 20, 2010

  • owen_o Jan 28, 2012

    Even the rear end feels loose when you get off the gas. Possible same problem he is talking about. Is this the same problem I'm having with my 2002 Jp grandcherokee. overland.

  • Richard Scordino Jan 29, 2012

    Front suspension and rear differential are held in place by bushings at the ends of the control arms. Factory bushings are rubber. You can buy after-market replacements that are made from a harder yet very durable material. They are more expensive than are factory ones and will make your ride a bit less "car like". Often bushing replacement is a bit difficult if you never did one before. Another trick for gaining a bit more control is to have the control arms boxed. This is done by welding a plate over the open side of each arm, eliminating flex.. Jeep control arms are made from very thin metal and are not nearly as rigid as they should be. Doing this is not an alternative to replacing worn bushings though.



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