Ford Mustang Forum - View Single Post - differential vent question
View Single Post
post #6 of (permalink) Old 12-24-2015
5.0 Coyote
S197 Member
5.0 Coyote's Avatar
Joined: Oct 2010
Location: San Carlos Park
Posts: 2,339
There should NOT be any + or - pressure inside the rear diff,that is why it is called a vent and not a valve,it is there for equal pressure hot or cold.If it hisses either hot or cold it is plugged and needs to be removed and cleaned in solvent.
5.0 Coyote is offline  
For the best viewing experience please update your browser to Google Chrome