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'73 Auto Trans Fluid and Filter

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Old Mar 13, 2016 | 01:22 PM
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Default '73 Auto Trans Fluid and Filter

I'm planing to do a trans fluid and filter change. Should I warm it up first or change it cold?

Tks
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Old Mar 13, 2016 | 02:16 PM
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Change it cold. You'll probably end up wearing some of it and at least it won't burn.

Last edited by BKbroiler; Mar 14, 2016 at 08:27 PM.
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Old Mar 13, 2016 | 09:26 PM
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Got it done, glad it I was cold, wearing a lot of fluid. Even with a lift it wasn't fun...next time valvoline can do the deed.
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Old Mar 13, 2016 | 09:30 PM
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It's a lot easier if you add a drain plug to the pan the first time. Virtually no mess after that.
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Old Mar 13, 2016 | 10:05 PM
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If he has a th400 the filter should be changed every time as there known for problems because there a cloth filter
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Old Mar 13, 2016 | 10:56 PM
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Mine is a TH400, it was a metal filter. There was some black residue in the bottom of the pan, but otherwise it looked good... No metal shavings and the fluid didn't look or smell burnt.
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Old Mar 13, 2016 | 11:27 PM
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That is a cloth filled element encased in metal
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Old Mar 13, 2016 | 11:43 PM
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Make sense now. The metal one I removed didn't have anything inside, but the new one did. I suspect the cloth/paper in the old one "dissolved" overtime and was in part what made up the sludge in the bottom of the pan.
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Old Mar 14, 2016 | 05:45 PM
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Originally Posted by diehrd
If he has a th400 the filter should be changed every time as there known for problems because there a cloth filter
Who in their right mind would do this without changing the filter?
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Old Mar 14, 2016 | 10:34 PM
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Originally Posted by '75
Who in their right mind would do this without changing the filter?
Agree!
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