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either the od is burnt out and needs to be replaced or the plastic grommet under the throttle plate is bad. this grommet connects your tv cable to your throttle linkage. the last alternative is that the hard bar(input shaft) is broken. if that is the case, then it will shift from 1-3rd and when it tries od, it feels like its going into neutral

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Q: What would cause a 1988 mark vii LSC not to shift in to overdrive?
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