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Old 11-12-2013, 09:47 AM
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2011 grand cherokee 3.6 problem

When I come to a stop at a stop light and I'm waiting with my foot on the brake it feels like someone is bumper tapping me and the car sort of jolts and feels like something is hitting me and it does it multiple times. Anyone have any idea what this could be?

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Old 01-07-2014, 06:49 AM
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Sounds like you may have a cylinder misfire
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Old 03-17-2014, 07:46 PM
My Jeep: 2011 3.6L WK2
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Re: 2011 grand cherokee 3.6 problem

cylinder misfire or engine coil issue. My 2011 had to have Cylinder 3 head replaces at 32k miles, and now at 64 engine coil just needed to be replaced as well. New engine in 2011 model has been nothing but a head ache for me. Waiting to pay it off so I can trade it in as soon as possible! cylinder head is under powertrain warranty- engine coil is not.
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