Q: Master cylinder issues with vehicle. Hard to stop.
Brake pedal occasionally goes all the way to the floor and I have to pump it to stop the car. I was told it could be a master cylinder booster or the master cylinder itself.
The booster won’t make your pedal go to the floor. If you bled all the brakes, and there are no leaks, then it’s most likely the master cylinder. You can take them apart and clean them, but if the seals are too bad then you should just replace then bleed the brakes again. A mechanic from YourMechanic can do the above as well as perform a brake safety inspection if you would like.
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
What others are asking
What makes my transmission so rough?
In order to tackle this question appropriately, more information would be needed to guide us in the right direction. One question is, does the transmission slowly engages when you first drive your vehicle, or after it has sat for a...
Noise coming from air conditioner
Hi. From my experience with this car, this is typically caused by a failing AC compressor. The compressor on this vehicle is a common failure and it typically starts to make a loud squeaking or rattling noise. If the noise...
Air conditioner doesn't work
The AC condensers on these cars are known to leak, according to most owners that have had AC problems. Diagnosis of the inoperative AC depends on inspection of the AC condenser for leakage. The AC condenser is in front of...
Rough idle, thermostat code
I'm guessing the codes is P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) (https://www.yourmechanic.com/article/p0033-obd-ii-trouble-code-turbo-charger-or-supercharger-bypass-valve-control-circuit-by-john-nelson). The code and the symptoms you are experiencing may or may not be related. The powertrain control module (PCM) determines operating temperature via the signal...
can i put dexos oil in my sunfire?
You sure can, it needs to be 5w-30 which is the correct viscosity (flow rate of oil) for your vehicle. I recommend the use of this oil.
When I am accerlerating, I feel a vibration.
Hello there, many faults will cause your 2004 Ford Taurus to have a vibration in the gas pedal. It is good that you referenced where the vibration is coming from, as this varies what will cause it. The most likely...
How much dose it cost to replace the wiring harness in my2005 chevy cavalier
Hi Cynthia. Thanks for submitting your question to us today. I'm not sure if a wiring harness is the root issue of the symptoms you're experiencing. Usually when this issue occurs, it's due to fuel delivery or ignition system problem....
When starting, car has heavy gas smell and starts to smoke from under hood with engine light on.
In order to start diagnosis the computer will need to be scanned for codes. The problem sounds like you have a fuel injector leaking or a cylinder misfire. Check engine oil to see if it is overfull indicating fuel has...
Hi Yourmechanic proffessionals. I have nissan Altima 2013 Car and recently I gave it for cleaning .after cleaning,I found that my
If the engine compartment was cleaned, perhaps with water, steam, or other methods a possibility is water or contaminant intrusion into critical electrical connectors and/or disturbed electrical connectors. That possibility might be conformed once the loss of power is traced...
Related articles
Can a Leak in the Brake System Cause Total Brake Failure?
Although Although there are several issues that can lead to total brake failure, the most common one is some form of brake fluid leak. When a brake leak is present, it affects the fluid pressure in your system. Since it...
How to Buy a Good Quality Gasket
There There are a wide variety of gasket types on a typical vehicle, from head gaskets which are installed between the cylinder head and the engine block to engine gaskets which seal out harmful elements and keep the engine safe...
How to Clean Cylinder Heads
The The engine cylinder head (https://www.yourmechanic.com/article/how-to-buy-a-good-quality-cylinder-head) has many passages for coolant and oil and can build up dirt over the life of the engine. Once the cylinder head is removed from the vehicle, it becomes a simple matter to clean...
Browse other content
Cities
Maintenance
Services