C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
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Old Jun 5, 2021 | 10:05 AM
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marinmanne
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My gearbox suddenly stopped shifting 1 and 2 starts on 3 gears, read online it read like this The 1-2 shift failure on the 4L60E is often due to a faulty throttle position sensor (TPS). Could it be possible, someone who has experience?
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Old Jun 8, 2021 | 11:06 AM
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I did not see your post and had just started a thread today regarding my A-4 1-2 shift slipping. All the other shifts are fine...just that 1-2. For what it's worth I replaced the TPS with great hope and it did not resolve the issue at all. Good luck.
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Old Jun 9, 2021 | 04:36 AM
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marinmanne
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Understood that it would not work. I talked to a gearbox workshop yesterday, he said it needs to be renovated, did not really understand what the problem was, but just remove it and hand it in.
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