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4L60E issue

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Old 08-23-2011, 09:32 PM
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Default 4L60E issue

2000 silverado and my trans seems to drop out of overdrive around 40 - 50 mph as if it is slipping. The rpm raises and if I press the gas more it shifts back. Only does it between these two gears. What would cause this?
Old 08-23-2011, 10:20 PM
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Sounds like its dropping out of lockup possible missfire issue.
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