Differential breather hose

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Grunzen

Full Access Member
Joined
Jan 15, 2012
Posts
168
Reaction score
76
Location
MO and CO
Changed my fluid out in January. Had the same thing happen. It was 20 degrees outside when I did it and not on perfectly flat ground so once the weather warmed up and I got it heated up it started venting out. All good now, though.
 

Lvrkight6481

Full Access Member
Joined
Feb 17, 2016
Posts
75
Reaction score
125
Location
Las Vegas
I had same problem with my 2013 and after 3 trips to the dealer oh this and that. They finally rebuilt the rear end saying it was overheating causing the overflow. Hope this helps.
 

Ruger

FRF Addict
Joined
May 16, 2011
Posts
9,193
Reaction score
8,261
Location
Northern Nevada
I had same problem with my 2013 and after 3 trips to the dealer oh this and that. They finally rebuilt the rear end saying it was overheating causing the overflow. Hope this helps.

How many miles were on your truck when the dealer rebuilt the rear end?
 

cubiefan101

Full Access Member
Joined
Oct 21, 2012
Posts
431
Reaction score
138
Location
Illinois
Any update on this?

My truck just started doing the same thing.....found diff fluid coming out of the top of the breather tube.

Sent from my SM-G925P using Tapatalk
 

bwep

Member
Joined
Nov 11, 2012
Posts
44
Reaction score
78
Location
Mass
My truck also was blowing fluid out the vent tube. They preformed the following TSB and it has not done it since the repair.

TSB 14-0090

05/01/14

CLICK/SNAP NOISE ON INITIAL ACCELERATION FROM A STOP - BUILT
ON 1/1/2011 AND THROUGH 4/1/2014

FORD: 2011-2014 F-150http://ecoboostforum.com/threads/tsb-14-0090-drivetrain-click-snap-on-initial-acceleration-ford-f150-ecoboost-3-5l-v6.102/
 

Ruger

FRF Addict
Joined
May 16, 2011
Posts
9,193
Reaction score
8,261
Location
Northern Nevada
This is related information. I recently changed the fluids in the rear and front differentials and the transfer case, and the fluid from the front differential was milky and foamy indicating that it had water in it. Since the last change there have been no water crossings - nothing but driving under normal conditions. I haven't a clue how water got in there.
 

smurfslayer

Be vewwy, vewwy quiet. We’re hunting sasquatch77
Joined
Dec 16, 2016
Posts
16,069
Reaction score
23,546
If you’re spewing fluid through the breather hose, and the usage pattern hasn’t changed you should open up the diff, fill with fresh fluid and confirm no defective hose or fittings.

I got black flagged at summit point when my Mustang did this about 10 laps into the session. It was hot, but not brutal, but I was caning it pretty hard. All I got from the flaggers was ‘trailing blue smoke’, which I thought was profoundly bad. I rigged up a catch system to get me through the day, and had my local shop check everything out - NPF. Never had another problem or incident. I did have similar symptom on a previous truck. I did a water crossing, maybe 20 or so seconds tops(?) A couple days later I spied a lead on the diff cover and gasket. took to the dealer, changed the fluid and they suggested it might have been water in the fluid as a previous poster suggested.
 
Top