91 Olds 98, used tranny harsh in reverse - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 02-26-2012, 05:46 PM   #1
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Default 91 Olds 98, used tranny harsh in reverse

I put a used tranny in over the weekend. It'* working fine thru the gears, just when I put the tranny into reverse on start up, it kinda bangs into reverse. No other harsh shifts anywhere, just a bang when putting in reverse. It'* a bit smoother after engine is warm. Any ideas what to check on this used tranny.
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Old 06-05-2012, 08:11 PM   #2
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Is it a GoodWrench re-manufactured transmission from GM or one from a junkyard? What do you mean by bang? Does it make a loud Bang sound or does it hit hard when you shift it into reverse? I have a GoodWrench re-manufactured transmission in my '93 Eighty-Eight and it slams when I shift into reverse, when it'* cold.
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Old 06-05-2012, 11:28 PM   #3
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Default Smoothed on out

It was a used unit from a junk yard. I seafoamed it, and changed fluid and filter....after about a day of use, it smoothed on out and has been running fine.
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Old 06-06-2012, 12:24 PM   #4
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That'* cool. I'm glad the problem solved itself
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