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Old 06-10-2015
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Join Date: Jun 2014
Location: Ayer, MA
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Chatter when first moving forward

I get chatter/vibration when I go from stop to moving forward such as at a stop light. I have an automatic transmission, 4x4, 4L, 2002, and ext cab. The chatter seems to be worse when I start off into a turn. It also seems to be getting worse with time. I used the truck to plow my driveway this past winter with a light weight snoway plow. I had no problems doing this. I am trying to figure out what can cause the chatter and then have the problem checked out. Any suggestions?
Thank you.
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Old 06-10-2015
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Not an automatic trans guru, but it could be torque converter clutches are slipping on lockup.
When you come to a stop the computer unlocks the torque converter, when you press down on the gas pedal computer locks it up again.

Could just be time for a change of filter and fluid in the trans.

If it only does it on start up turning then it probably isn't a Trac Lok differential issue, the Limited Slip differentials require an additive, or oil with additive already added, so the clutches can slip a bit when turning.
Without the additive you will get chatter when turning at lower speeds.
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