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The nut for the transmission dipstick is not closed tightly

Tiny
MEM100
  • MEMBER
  • 2009 FORD EXPEDITION
  • V8
  • 2WD
  • AUTOMATIC
  • 152,000 MILES
Will this cause oil leakage? If air enters the transmission thought the dipstick hole will this be a problem?
Wednesday, April 15th, 2020 AT 9:32 PM

3 Replies

Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I'm Danny.

Just a quick question first. Are you asking about where the dipstick tube meets the transmission housing? Let me know and thanks for using 2CarPros.
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Wednesday, April 15th, 2020 AT 11:01 PM
Tiny
MEM100
  • MEMBER
  • 2 POSTS
Yes. There's a nut which over the dipstick tube and this nut screws into the transmission housing.
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Sunday, April 19th, 2020 AT 5:54 AM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again.

If the nut doesn't form a complete seal the transmission would be more prone to leaking due to high transmission pressures. So, to answer your question yes, it will leak if not sealed correctly. The fill level/plug will have a rubber o-ring to help seal the transmission and plug/dipstick from leaking. I've attached pictures below. Hope this helps and thanks again for using 2CarPros.

Danny-
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Monday, April 20th, 2020 AT 3:53 PM

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