hemigod

Yesterday I had an odd thing happen. I started my truck in the driveway and a message appeared that brake fluid was low. The brake pedal went all the way to the floor. I opened the hood and there was no fluid in the reservoir, so I filled it. There was also no fluid on the driveway. I started it up and drove for a minute or two around the block, and the message reappeared. The reservoir was empty again and again there was no sign of any brake fluid leaking around the wheels or underneath the vehicle. I filled it again and drove it slowly to the local Ford dealer. About a minute or two after I started driving the message appeared. When I got to the dealer, there was no fluid in the reservoir. I used the e-brake, slow speed, and gears to get to the dealer, in retrospect I should have had Ford tow it. The service advisor could not find any leaks under the truck. They kept the vehicle overnight and this morning they called to tell me that the master cylinder was leaking the fluid into the brake booster and that both parts have to be replaced. I am under warranty, so we'll see what happens. Meanwhile, I looked at the NHTSA web site and found this information. Looks like there have been a few other complaints and the NHTSA is investigating. Glad this didn't happen while I was doing 70 MPH on I-95. I am a FORD shareholder and I hope FORD does the right thing with this issue before anyone is killed. I added my complaint about this issue to the NHTSA data base.
"Manufacturer: Ford Motor Company
SUMMARY:

The Office of Defects Investigation has received 33 reports alleging master cylinder failures in model year (MY) 2013 through 2014 Ford F-150 full size pickup trucks. All of the reports involve F-150 trucks equipped with 3.5L engines, with an estimated 420,000 units sold in the United States representing approximately 36 percent of MY 2013-2014 F-150 sales. The complaints allege symptoms of brake pedal going to the floor with complete loss of brake effectiveness, brake warning lamp illumination, and/or low or empty master cylinder reservoir fluid level with no visible leakage. Several complaints allege repair facilities diagnosed the problem as brake fluid leaking from the master cylinder to the brake booster. Thirty-one (31) of the reports were received in the last 12 months, including 20 in the last 7 months. Four complaints allege that the alleged defect resulted in collisions. A Preliminary Evaluation has been opened to assess the scope, frequency, and safety-related consequences of the alleged defect. The ODI complaints cited above can be viewed at www.safercar.gov under the following ODI identification numbers: 10818273, 10817706, 10809601, 10788886, 10788369, 10785526, 10779854, 10776834, 10766291, 10762034, 10761412, 10760663, 10758997, 10750065, 10749886, 10748122, 10747875, 10747531, 10746143, 10745511, 10744847, 10743344, 10733196, 10733023, 10731327, 10725476, 10725096, 10725046, 10724169, 10715103, 10692723, 10662564, and 10632103."

crazydubc

Had the same thing occur at 21K mileage. Report it to the NHTSA. I had the dealer blame it on my aftermarket CAC.

hemigod

I did report it to the NHTSA, and I also saw the report that the dealer blamed the issue in one case on an aftermarket CAC - so I assume that was you. Mine had 18045 miles when the issue appeared. The scary thing is that there has been no redesign of these parts, so it will be very hard for me to trust the repair. Did they fix yours under the warranty or not because of the CAC? A CAC has nothing to do with a master cylinder failure.

crazydubc

Yeah, they fixed it after I explained that the more dense air from the CAC at 80 degree OAT on startup with no boost will not fail the booster. Additionally, even if it did that would mean in the winter when the air is more dense it would have failed anyways. The dealer just pissed me off and I was scared ****less as it failed in the driveway with kids in the road in front of me.

jplummer

Does anyone know if Ford is doing anything except replacing with the same defective parts? This just happend to my 2014 on 5/17/2016 with 27,050 miles. My dealer is replacing my entire brake system and returning the brake lines, fluid, booster and master to Ford MoCo for their evaluation. My concern is that they don't know how to stop the problem from happening again. I don't feel safe driving this vehicle or towing my boat.

2010FORDF-150

Hey guys im having a weird problem with my brake fluid i have a 2010 ford f150 i drove to my familys house and the truck was fine but when i was about to go home i started my truck and got a low brake fluid notification and my hand brake lite came on and stayed on even thow the hand brake wasnt engaged so i pressed the brake pedal and the brake pedal went all the way down i ended up driving home slow because it was late at nite and i did not have any brake fluid on me so when i finally made it home i checked the brake fluid and the resovoir was empty so i had brake fluid at home and i poured it in and it got me up to half the resovoir and i tried the brakes and they were slugish because air got into the system so the next day i went to check the resorvoir and it was empty again without driveing the truck so i got more brake fluid filled the resorvoir right up to the max line and bled all the brakes and topped it up with more brake fluid and the truck sat at home did not drive it i checked the next day and it was still full so i went for a drive to test everything out and the brakes are good and when i got home i checked the resorvoir and the fluid is still full and i havent lost any fluid ever since and this is really weird there is no leaks on the driveway and the brake lines have no leaks does anybody know what can be happening i was thinking it was leaking into my brake booster but wouldnt it happen all the time if there was an issue...can someone help me with this?

M0RRIS

It looks like this has become a recall, my wife saw on the news that ford is recalling over a quarter million trucks from 2013-2014 for brakes that leak

http://abcnews.go.com/Business/wireS...-leak-39363561

2010FORDF-150

Thanks morris for the reply but i have a 2010 v8 4.6L so i dont think that recall is for me....like i said its really weird because its been fine ever since and i would like to know were that brake fluid mite have gone.

5.Ohno

I second the recall post, just saw a news article about a brake fluid leak. Funny thing is the dealer seems to hear about the recall after the news haha.

2010FORDF-150

Lol haha but does anyone know if the 2010 has any type of 2010 f150 brake recalls?