2014 Ford F-150: soft or spongy brake pedal

Filed Aug 20, 2026 · Brakes · AR

On July 30, 2026, while operating my 2014 F-150 under normal driving conditions, the dash cluster information screen displayed a "Brake Fluid Level Low" warning. Moments later, the brake system experienced a sudden/catastrophic loss of front braking performance. The brake pedal became severely spongy and traveled completely to the floorboard, requiring drastically increased distance to bring the vehicle to a stop. Due to ineffective braking, I missed the driveway of the parking lot I chose to inspect/determine what the issue was and subsequently could not stop the truck within the confines of the parking space. This brake failure put me, my family as well as oncoming traffic and pedestrians in jeopardy of injury or death due to collision. A mechanical inspection of the vehicle revealed the rear cup seal inside the brake master cylinder had failed. This internal seal failure allowed hydraulic brake fluid to bypass the cylinder and leak directly into the vacuum brake booster, completely contaminating the booster assembly. Without effective braking, the truck was deemed too dangerous to drive so it was parked and unused until replacement parts could be installed. This specific component failure, internal seal degradation, and resultant fluid contamination of the booster is identical to the safety defect detailed in the federal safety agency Campaign #16V345000 (Ford Recall #16S24). However, this specific vehicle was excluded from that safety campaign solely because it is equipped with the 6.2L V8 engine, rather than the recalled 3.5L engine, this despite using the identical Hitachi master cylinder. The Ford Corporate Consumer Relations was unwilling to assist with the purchase of replacement of the master cylinder, booster but did offer to record my complaint and issue a case number for engineering review. The defective master cylinder and contaminated booster assembly have been retained for inspection if required or requested.

Filed Apr 28, 2026 · Brakes · IL

I was driving and my brakes gave out a bit and my brake pedal was hard to press down and when I pressed down there was a grinding sound. Also a red warning message said check braking system. Has been confirmed for 3.5L EcoBoost engines, which is what I have.

Filed Aug 25, 2025 · Brakes · IA

Vehicle drove fine to work and upon getting in to return home and staring the vehicle, the brake pedal was instantly spongy and low brake fluid alert displayed on dash. There was a difference in 9 hours from when the brakes were fully functional to having brakes were completely out and nonfunctional. Had vehicle towed to local dealership and their diagnosis was "master cylinder is bleeding into the booster" and booster "full of brake fluid." This exact issue has been known and was supposed to be addressed but there have been numerous issues with the new parts installed after the recall leading to subsequent master cylinder/booster failures. Since it has already been "repaired" under the initial recall, the subsequent repair cost $1,300 including diagnostic.

Filed Jun 26, 2023 · Brakes · TX

The contact owns a 2014 Ford F-150. The contact stated while driving 30 MPH, the brake pedal hardened upon depression, with the brake warning light illuminated. The brake pedal was depressed to the floorboard before the vehicle came to a stop. The vehicle was taken to an independent mechanic where the contact was informed that brake fluid was leaking into the brake master cylinder. Upon investigation, the contact discovered the federal safety agency Campaign Number: 20V332000 (Service Brakes, Hydraulic) which he linked to the failure. The manufacturer was notified of the failure, and the contact was informed that his vehicle was not under the recall and was no longer under warranty. The vehicle had was not repaired. The failure mileage was unknown.

Filed Nov 7, 2021 · Brakes · IN

Hard brake pedal at stopping and backing up with a grinding sounds

Filed Jun 21, 2021 · Brakes · 83,000 miles · SC

The contact owns a 2014 Ford F-150. The contact stated that the brakes failed. When the contact attempted to move the vehicle out of the park position the brake pedal failed to engage, the brake pedal became hard to move. The contact stated that the vehicle had to be moved by reversing the vehicle. The vehicle was towed to the dealer. The dealer performed a diagnostic that located the failure code at the brake booster and the master cylinder. The vehicle was not repaired. The manufacturer advised that the vehicle was not included in the federal safety agency Campaign Number: 20v332000 (service brakes hydraulic). The failure mileage was 83,000.

Filed Jun 23, 2019 · Brakes · 170,375 miles · TN

After pulling out of the parking lot of the place we stayed and driving 1/2 mile on a 2 lane road, I attempted to pull over at a gas station for gas before getting onto the interstate. I noticed the brake pedal was very spongy and braking was barely responsive. The pedal was pressed to the floor and then the check brakes indicator message dinged on the truck's info display as I was slowly able to pull into the gas station. After using the e-brake to assist in bringing the truck to a stop, I placed the truck in park and raised the hood. I checked the brake fluid reservoir level and it was well below the minimum line and was close to completely empty. I crawled under the vehicle to visually inspect for leaks of any kind from the brake lines following them up to the brake booster and brake master cylinder with no presence of any leaking brake fluid. I added a total of 2 quarts of dot 4 brake fluid to the reservoir in the hopes that maybe the system was just low somehow. I drove the truck back to the park we had just left only a little over a half mile away and parked the vehicle as the braking was still greatly diminished. As it is the weekend, I have been unable to get the vehicle serviced. I have called the ford recall help line and was told that my truck was not included in the 2013-2014 f150 vehicle recall even though it is the 3.5 ecoboost model and was built using the identical brake components that were recalled by ford. Based on the description of the brake master cylinder failure conditions indicated in the 16s24 ford recall and the conditions I am experiencing with my vehicle's brake failure, I am confident these conditions are related and the brake master cylinder has failed flooding the brake booster with brake fluid.

Filed Jun 20, 2017 · Brakes · TX

Over the course of two days the brake pedal started getting spongy and rapidly progressed to "going to the floor". At this point no repairs have been done, there are no visible signs of leakage and the reservoir level looks ok.

Filed Jun 23, 2016 · Brakes · 10 miles · TX

Driver was in route to a locations when the brake light became illuminated and brake pedal started to feel spongy. Driver was able to safely pull over and insect the brake fluid reservoir which was very low. Driver did a visual inspection and did not see any fluid leaks.

Filed Jun 23, 2016 · Brakes · TX

Driver reported brakes felt spongy in the morning on location. Driver functioned brakes a few time in park and light came on. Checked fluid level and it was low.