Q: Spongy brake pedal

asked by on

I was doing a front brake job on my 09 grand caravan and I noticed brake fluid coming out of the cap of the master cylinder when I was a pushing in the Pistons on the caliper with a C clamp. Was wondering if that could cause any of it damage the master cylinder because now it seems like I have a spongy brake pedal and increased stopping distance.

My car has 204000 miles.
My car has an automatic transmission.

You may have pushed some residue into the master cylinder and causing the pistons to not seal inside the master cylinder. You should bleed the brakes or have them bled to see if some air was introduced and bleeding will fix the problem. If bleeding does not help, then replace the master cylinder. If you would like, a certified technician from YourMechanic can come to your home or office to inspect your braking system.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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
  1. Home
  2. Questions
  3. Spongy brake pedal

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: transmission goes into shift inhibator

Here is the most common cause for your concerns. The park/neutral switch can be exposed to road water/salt/debris that ruins the integrity of the switch. Literally water is kicked up into the switch on all left hand turns and...

Q: Brake bleeding problems

You are going to need to have the ABS module put into bleed function using a scanner that can enable this function or have a mechanic that has a scanner (with this function) and a pressure bleeder to pressure bleed...

Q: Van hard to start

Hi. Your problem has numerous potential causes. One thing that comes to mind, however, is that your fuel pump may be faulty. The pump may be allowing pressure to bleed off when the engine isn't running. This can be tested...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...