Skip the auto shop - Our mechanics make house calls

Q: Brake pedal not working.

asked by on

The brake pedal goes all the way to the floor. I had to use the emergency brake to get home when I bought it.

A: Hello! It sounds as if you had quite a harr...

Hello! It sounds as if you had quite a harrowing drive home! Given the van is new to you, we don’t have the advantage of knowing the full service history, so I will try to cover as many options as possible. A low brake pedal is a symptom of a failure somewhere in the brake hydraulic system. The easiest test that you can perform is to verify the master cylinder has the appropriate amount of brake fluid. This is relatively easy to do. After lifting the hood, find the master cylinder reservoir located nearest the driver side inner fender. Remove the cap, and verify the fluid is between the “MIN” and “MAX” line. If it is, it is possible the master cylinder has failed and will need to be replaced. If it is not, it may be time to enlist the help of a qualified technician. Because brake fluid is not supposed to be consumed, the lack of fluid indicates a potential leak. Leaks in the brake system can occur just about anywhere, from rubber hoses and seals, to steel lines rusted from road salt, to calipers or wheel cylinders failing with age. The good news is these components are relatively inexpensive to replace, and can usually be done in short time by a technician worth his salt. I would recommend scheduling a brake system inspection to confirm the point of failure, and get a better idea of the cost and time involved to repair your Aerostar to like-new brake performance!

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Fuel rail once went bad. Driver side spark plugs good other side black. Fires up idles a few secs then shuts down.

You need to have the fuel pressure checked to see if the pressure holds steady when the key is cycling on and off. The pressure regulator may be leaking fuel into the intake flooding the three cylinders with fuel. Have...

Q: How do I release the parking brake?

Before driving, you should always release the parking brake. If you do not release the brake, the car will not drive normally, and you can do serious damage to both the braking system, and the engine. To release the parking...

Q: Hard to press brake

Hello. This is caused by a bad brake vacuum booster. When the booster fails, the brakes will get hard and it can cause a vacuum to leak in the engine causing a misfire. It sounds like this is what is...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...