Hi, they told me the same thing! I bought the hole piece for $58 from motorcraft and I will have it installed as soon as I can! Right now the light has not ben coming up. The brake lines seem fine by the brakes. Hopefully this rectifies the issue.

 

I replaced a leaky brake booster to vacuum pump vacuum hose (9C482) on one
of my three FEH 2012s/2011 back in 2018.
https://www.greenhybrid.com/forums/f...73/#post265615

The fault is documented in NHTSA ID Number: 10044540 and Ford's TSB-22353
(https://static.nhtsa.gov/odi/tsbs/20...44540-1228.pdf).

 

Thank you so much! I had the same issue: Check brake system warning coming on more and more often, and also noticed that the hybrid wouldn't come on anymore (mpg went down to like 26 or 27). It actually was dangerous in the end when the brake stopped working today for a few seconds while driving. I finally was urged to change the 3-way check valve.

With the help of this thread (and pictures to locate the valve on another forum which also advised to use three adjustable clamps for the hoses just in case) I was able to fix it for my 2010 Escape Hybrid. arbie2 provided the pdf containing the part number. I ordered the vacuum hoses and the 3-way check valve from a Ford dealer for $60-70 a while ago and was able to just replace the valve to get it working again. Initially I had problems as it seemed these hoses wouldn't come off easily but eventually I used two wood chisels to get in between and carefully pry the hoses off. Worked much easier than I initially expected and without breaking anything. I heard some horror stories that it was misdiagnosed by the stealership several times and people paid a lot of money for unnecessary repairs.

Love the internets and the Ford Escape, and that so far I was able to save several thousand dollars with 3 relatively simple repairs (check brake light, ignition failure, rear door actuator). Oil change is as easy as 123 as well.

Also love that that thing now is $2K worth more than when I bought it 5 years ago...haha. Now all I hope it also lasts the advertised 500K miles like the taxis in NYC..then I am set for life :-)

 

Do you have the part numbers? I am looking to replace this on my vehicle as well. Seems to be at the beginning of its failure.

 

2012 hev escape. I had brake line trouble 2 years ago. Hot rim, shaky tire. Two new 8$ rubber brake lines fixed that. This problem is different. I've had "check brake system" several times over years. Turned off and then it's gone. This time is different. Brakes are weak unless pushed far down then very abrupt. At higher speeds I can hardly notice a difference because it's braking with the motor charging the battery at those speeds. Once it gets down to normal brake pad stopping speed (10mphish ) that's when it gets scary. I hope it just needs a flush or something.

Way better than "stop safely now" problem... Don't do it! Drive all the way home and let it run and run. That was always a wet something for me. I would let it dry out very well and then use a "expensive code reader" to reset the codes. That's it. Once you stop you can start until the deep code is reset, so only turn it off once you get home. I think silicon at the bottom weather stripping of the windshield can help prevent this some.

 

You may want to research collapsing brake hoses for at least the Escape as it is a known failure point and many times leads to replacement of the HCU when really only the hoses needed replacing and system bled.