I have a Chevy Silverado 3500 dually 1997 7.4 liter engine with an Allison transmission transmission not shifting out into last gear
7 Answers
Is the transmission fluid level okay? Remember to always rule out the obvious first.
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Yes just will not Chang into last gear but will go into passing gear
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Passing gear is just downshifting 1 gear.
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You should have a 4L80E transmission. It is NOT an Allison. If you push the overdrive button will the light come on?
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