Ford F-250 Super Duty Hissing noise when brake pedal is depressed Inspection at your home or office.

Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM.

Estimate price near me

Service Location

Customer Ratings

(327)

How A Diagnostic Works

Instantly book a certified mobile mechanic to come to you

Mechanic diagnoses the problem and quotes necessary repairs

Your vehicle is ready to go

Fair, upfront & transparent pricing for all services

Our certified mobile mechanics can come to you now.

Customer Ratings

(327)

Hissing noise when brake pedal is depressed Inspection Service

How much does a Hissing noise when brake pedal is depressed Inspection cost?

On average, the cost for a Ford F-250 Super Duty Hissing noise when brake pedal is depressed Inspection is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2006 Ford F-250 Super DutyV8-5.4LService typeHissing noise when brake pedal is depressed InspectionEstimate$114.99Shop/Dealer Price$124.99 - $132.49
2007 Ford F-250 Super DutyV8-6.0L Turbo DieselService typeHissing noise when brake pedal is depressed InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2006 Ford F-250 Super DutyV8-6.0L Turbo DieselService typeHissing noise when brake pedal is depressed InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2004 Ford F-250 Super DutyV10-6.8LService typeHissing noise when brake pedal is depressed InspectionEstimate$94.99Shop/Dealer Price$104.99 - $112.48
2009 Ford F-250 Super DutyV8-5.4LService typeHissing noise when brake pedal is depressed InspectionEstimate$94.99Shop/Dealer Price$105.02 - $112.55
2020 Ford F-250 Super DutyV8-6.7L Turbo DieselService typeHissing noise when brake pedal is depressed InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2014 Ford F-250 Super DutyV8-6.7L Turbo DieselService typeHissing noise when brake pedal is depressed InspectionEstimate$99.99Shop/Dealer Price$109.87 - $117.28
2001 Ford F-250 Super DutyV10-6.8LService typeHissing noise when brake pedal is depressed InspectionEstimate$99.99Shop/Dealer Price$110.24 - $117.94
Show example Ford F-250 Super Duty Hissing noise when brake pedal is depressed Inspection prices

Brakes are the most important safety components on your vehicle. Despite that importance, it’s easy to take them for granted, at least until your car begins to do strange things. Ordinarily, pressing your brake pedal should result in only the car slowing down or stopping. If you hear a hissing noise when the brake pedal is depressed, it may mean there’s something that needs to be repaired in the system.

How this system works:

On many cars, the master cylinder works in tandem with a brake booster. The brake booster is mounted to the firewall, generally in front of the steering wheel position, and the master cylinder attaches to it. The entire point of the brake booster is to make it easier to press the brake pedal and slow or stop the car.

Your brake booster works on vacuum pressure. There’s a diaphragm inside that is responsible for maintaining pressure when you’re not pressing the pedal. However, when you do press the pedal, a push rod moves forward within the booster and into the master cylinder. The side of the diaphragm facing the cabin vents to atmospheric pressure, while vacuum is maintained on the other side.

This then equalizes with pressure on the other side of the diaphragm, providing the boost needed to make pressing your brake pedal easier. The hissing noise you hear when the brake pedal is depressed could be nothing more than ordinary operation, or it could be a sign of a deeper problem. There are a couple of different potential issues here, some more severe than others.

Common reasons for this to happen:

  • Leaking Vacuum Line: Your brake booster is supplied with vacuum from the engine via a vacuum hose. It’s usually located near the firewall. If this hose has a leak, it can be heard within the cabin.

  • Leaking Brake Booster Diaphragm: The diaphragm that’s responsible for maintaining pressure within the brake booster can fail, particularly if the master cylinder is leaking fluid into the booster. When this happens, you’ll hear a hissing sound when depressing the brake pedal, but the pedal itself will be much, much harder.

  • Damaged or Missing Foam Silence: Most cars equipped with brake boosters also have a foam silencer that’s designed to help prevent you from hearing that hissing sound. If the silencer has degraded or been damaged, you’ll hear the hissing sound.

  • Failing Master Cylinder: If you hear a hissing sound and suspect that the problem is the diaphragm in the booster, the actual cause is likely the master cylinder beginning to fail. Signs that the master cylinder is leaking into the brake booster include low fluid in the reservoir with no visible leaks.

What to expect:

A top-rated mobile mechanic will come to your home or office to inspect your brake system, including the brake pedal operation, the brake booster and listen to the hissing sound. The mechanic will then provide a detailed inspection report that includes the scope and cost of the necessary repairs.

How it's done:

The mechanic will need to crank the car in order to verify the hissing sound, and a test drive may be necessary to duplicate the complaint. Additionally, the mechanic will inspect the brake pedal operation, the condition of the brake booster, the master cylinder, the level of fluid in your system and more.

How important is this service?

Power brakes are wonderful things, making it far easier to work a brake pedal that would otherwise require significant force to activate. While the hissing sound may be a sign of nothing more dangerous than a failed piece of foam, it could be a symptom of something much more worrisome – a damaged brake booster and a failing master cylinder. You cannot afford to take chances with your brake system. One of our professional mechanics can inspect the entire system and determine if there’s cause for concern, and what needs to be done if there is a problem.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Ford mechanics

Real customer reviews from Ford owners like you.

Excellent Rating

(327)

Rating Summary
304
8
3
2
10
304
8
3
2
10

Ronald

41 years of experience
301 reviews
Ronald
41 years of experience
Ford F-250 Super Duty V8-5.4L - Oil Change - Tomball, Texas
Thank you Ronald!

Leonardo

5 years of experience
13 reviews
Leonardo
5 years of experience
Ford F-250 Super Duty V10-6.8L - Brake fluid is leaking - Danbury, Connecticut
Leonardo was amazing. He was very careful in replacing the brake line and bleeding the brakes. I can tell that he knows auto mechanics and really likes what he does. Thank you so much for sending him. Great work

Corey

17 years of experience
332 reviews
Corey
17 years of experience
Ford F-250 Super Duty V8-6.2L - Positive Crankcase Ventilation (PCV) Valve - Charlotte, North Carolina
He was on time and very polite. He new what he was doing it was great to see that now a days

Thomas

12 years of experience
96 reviews
Thomas
12 years of experience
Ford F-250 Super Duty V8-6.2L - Check Engine Light is on - Midlothian, Texas
Very thorough in his descriptions of what was wrong with my vehicle. Very knowledgeable mechanic.

Excellent Rating

(327)

Rating Summary
304
8
3
2
10
304
8
3
2
10
Number of Ford F-250 Super Duty services completed
3597+
services done by our mechanics
TOTAL NUMBER OF EXPERT Ford MECHANICS
1700+
experts on our platform

Recent articles & questions

How to Replace a Lost or Stolen Car Title in Texas
It’s It’s never a great feeling to lose something of importance, or worse yet have it stolen. So what if that item is your car title? Your car title is what proves you are the owner of your vehicle, and...
What are the Car Pool Rules in Oklahoma?
Car Car pool lanes were introduced to American road a few decades ago, and have been rising in popularity ever since. A large number of states have these lanes, and they cover more than 3,000 miles across the country. Many...
Mobile Mechanics 101: The Essential Mobile Car Repair Guide
What you need to know about mobile mechanics: repairs and maintenance services they provide, and pros & cons versus a repair shop.

Car shuts off while driving

This sounds like potentially a mass air flow sensor (https://www.yourmechanic.com/services/mass-airflow-sensor-replacement) problem. The mass air flow sensor monitors the air flow into the engine and when this is faulty can cause reactions much like what you are describing. I would suggest...

Bottom Brake lights not lighting

Hello there, a few common faults will cause your 2007 Chevrolet Colorado to have brake lights that do not illuminate. In many cases the bulbs are the most common failure, these bulbs are dual filament and are responsible for the...

How many Camshaft position sensor are in a Saturn relay

There is two camshaft sensors on this engine mounted in the front of the engine inline with each camshaft.

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (844) 997-3624 · hi@yourmechanic.com