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05-20-2011, 11:41 PM #1
- Join Date
- Mar 2010
- Jacksonville, FL
Tranny issue- 116K, newly rebuilt engine, and it 'bumps' like shifting at times....
vehicle: 1999 Suburban 2500 4x4 gov't issue, 4L80E tranny, 350 Vortec- just rebuilt...and the tranny 'bumps' like it wants to shift hard but doesn't shift, usually in top gear. Also, every once in awhile, it 'shudders' like you're going over those highway 'wake up' strips on the edge of the road, but if I let off the gas and then hit it again, it stops....
Any ideas on the issue here?
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