Just wanted to thank everyone on this thread that contributed with useful information. I had the same problem as all of you with fluid coming out of the vent. I used a mirror and a flashlight to look on top and verify. I bought a 3/8-18 tap item number 2525A114 from McMaster Carr along with 3/8" npt magnetic pipe plug item number 1072A22. I bought a 37/64" drill bit also from them but I do not have a drill that will accept a shank over 1/2"...soooo I went to Menards and bought a 9/16" drill bit necked down for a 1/2" chuck. It threaded fine, I used a socket and extension with my 3/8 ratchet to thread it since all my tappers were too small to fit this larger tap.
I am not sure how much black sludge and oil came out but I am pretty sure I caught the problem right away. I would guess there was about 8 ounces or less left. I sprayed a whole can of brake clean through it and ran some clean oil after tapping to make sure all of the shavings came out. Filled it up using one of those cheap pumps that screw onto the gear oil container and a piece of tubing. I used the bent zip tie method for the fill height.
Car is a 2011 Ford Edge SEL AWD with 89,500 miles.
AGAIN,THANK YOU ALL!!!
