# 99 jeep shaking like crazy

**URL:** <https://community.cartalk.com/t/99-jeep-shaking-like-crazy/56628>\
**Category:** Maintenance/Repairs\
**Tags:** cherokee, jeep\
**Created:** [October 20, 2010, 1:36am UTC](https://community.cartalk.com/t/99-jeep-shaking-like-crazy/56628 "2010-10-20T01:36:58Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![rdb187](https://avatars.discourse-cdn.com/v4/letter/r/e19adc/32.png) [@rdb187](https://community.cartalk.com/u/rdb187)\
**Post date:** [October 20, 2010, 1:36am UTC](https://community.cartalk.com/t/99-jeep-shaking-like-crazy/56628/1 "2010-10-20T01:36:58Z")

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my 99 jeep cherokee vibrates like crazy when the a/c compressor is on. shakes so bad that i thought it was a problem with the balance. any ideas or do i just have a bad compressor?

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**Author:** ![cigroller](https://avatars.discourse-cdn.com/v4/letter/c/c68b51/32.png) [@cigroller](https://community.cartalk.com/u/cigroller)\
**Post date:** [October 20, 2010, 4:21am UTC](https://community.cartalk.com/t/99-jeep-shaking-like-crazy/56628/2 "2010-10-20T04:21:54Z")

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Consider that the AC adds quite a bit of load to the engine. If yours is performing marginally then the AC compressor will give it a load it can’t handle. So my guess is that you probably need something simple - like basic maintenance stuff. Like maybe new plugs & wires, air & fuel filters. But you didn’t even say how many miles are on it let alone anything about the state of maintenance items so its anyone’s guess.

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**Author:** ![rdb187](https://avatars.discourse-cdn.com/v4/letter/r/e19adc/32.png) [@rdb187](https://community.cartalk.com/u/rdb187)\
**Post date:** [October 20, 2010, 2:10pm UTC](https://community.cartalk.com/t/99-jeep-shaking-like-crazy/56628/3 "2010-10-20T14:10:44Z")

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160k, relatively good shape, serviced regularly and recently, and only driven about 2000 miles a year. the engine doesn’t seem to be bogging down or sound any differently when i looked under the hood. thanks.

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**Author:** ![cigroller](https://avatars.discourse-cdn.com/v4/letter/c/c68b51/32.png) [@cigroller](https://community.cartalk.com/u/cigroller)\
**Post date:** [October 20, 2010, 2:15pm UTC](https://community.cartalk.com/t/99-jeep-shaking-like-crazy/56628/4 "2010-10-20T14:15:14Z")

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Just because its running rough doesn’t mean it will “seem” to bog down or sound different.

Check out the plugs & wires. Do any other maintenance even close to due. (When some people say “serviced regularly” they mean oil changes). Check the fuel pressure.