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draining tranny oil?

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Old Dec 26, 2002 | 02:40 PM
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agent712
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draining tranny oil?
I read somewhere that you are supposed to take out the fill plug before you take out the 2 lower drain plugs. Why is this? Just for venting?


Thanks
Chuck
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Old Dec 26, 2002 | 04:25 PM
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ya.. its also kinda like opening the vent on a gas can b4 u pour...
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Old Dec 26, 2002 | 05:19 PM
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i thought it was to be sure that it comes off because if you drain it first and the fill plug doesnt come out then ur screwed..
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Old Dec 26, 2002 | 05:54 PM
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Originally posted by af908
i thought it was to be sure that it comes off because if you drain it first and the fill plug doesnt come out then ur screwed..
Whether that's the real reason or not, it makes good sense. At least you'd be able to drive it somewhere and have the fill plug removed if need be.
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Old Dec 27, 2002 | 02:58 PM
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If you do not take out the fill plug before you remove the drain plug, the oil will go everywhere except the pan below the hole.
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Old Dec 27, 2002 | 05:54 PM
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There is only one plug used to drain the tranny.
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Old Dec 27, 2002 | 06:09 PM
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shred
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Talking That came from this thread
Check this thread, was discussed in great detail with some examples of what can happen when you don't take the fill plug out. Was for the rear diff but same story.

Fill Plug before draining
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