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Old 04-12-2021, 04:59 PM   #1
2001-SC2
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Default Auto trans leak

No symptoms yet but just starting it and moving it will leave a drop or 2.
Looks like the bottom is leaking, is there any way to seal this without removing the transmission?
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Old 04-12-2021, 07:54 PM   #2
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Default Re: Auto trans leak

Make sure it isn't coming from somewhere else first. The top transmission cover and the transmission filter could be the source. The torque converter seal as well. Ask me how I know
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Old 04-12-2021, 10:23 PM   #3
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Default Re: Auto trans leak

^^ or even the drain plug/seal.
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Old 04-13-2021, 09:59 PM   #4
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Default Re: Auto trans leak

Thanks. The valve body was just replaced by a shop, and it seems like thereís a dip in the rpm for a split second on the 1-2 shift and a slight increase in rpm and a bit of a hard shift on the 2-3 shift but isnít every time.
Are there band adjustments on this? And could replacing the valve body be causing that? Thanks.
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Old 04-13-2021, 10:45 PM   #5
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Default Re: Auto trans leak

No bands, or other adjustments. However, the PCM may need to do a "learn" of the parameters for the new VB. That should occur automatically and very quickly. A full relearn may take a while, but after just a few miles/shifts the shifting should be smooth enough that you will think it is already acceptable. If you have live-data, that will show status of the trans relearn.
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