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Old 08-01-2009, 05:22 AM   #6
Green Machine
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Join Date: Jul 2004
Location: Estherville, Iowa
Posts: 3,371
Re: stumbling/misfiring at 2500-3000 rpms

Could it be the torque convertor locking/unlocking ? Try resting you foot on the brake enough to turn on the brake lights next time it happens.
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