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Old 02-05-2019, 01:37 PM   #1
FL72GMC
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Mystery plug from 4L60

Hey guys. While man handling my engine /trans into my truck a plug fell on the ground. I have not been able to find where it came from. My best guess is it is from the transmission and it installs nipple in. Anyone have any ideas? My luck I will start this thing and will have a transmission fluid shower. Thanks
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Old 02-05-2019, 02:16 PM   #2
YoungPup1977
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Re: Mystery plug from 4L60

Looks like a pcv that fits into the valve cover of the engine. Just a guess but maybe a forum expert may add their experience. Positive crankcase ventilation (PCV). Sucks all the crankcase fumes back into the intake manifold.
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Old 02-05-2019, 07:16 PM   #3
tdangle
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Re: Mystery plug from 4L60

I agree PCV Valve
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Old 02-05-2019, 09:18 PM   #4
Pontitruck
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Re: Mystery plug from 4L60

X3 on a pcv Valve
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Old 02-06-2019, 10:15 AM   #5
FL72GMC
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Re: Mystery plug from 4L60

Thanks guys. I appreciate the assistance.
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