Q: 2012 Chevy Equinox brakes pedal goes to floor then works tightly

asked by on August 07, 2017

My wife's SUV suddenly suddenly won't stop when you press brakes. The pedal will go all Tyne way to the floor and feels squishy. If you let off and press again it grips tightly and will lock up. I checked the fluid andis halfway full.

My car has 128000 miles.
My car has an automatic transmission.

The master cylinder not holding or getting pressure the first time is a bad residual valve built into the master cylinder. You will need to replace the master cylinder and bleed the system air out.

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

If my immobilized light indicator doesn’t turn on when I insert my key and turn my vehicle on does this mean I have a faulty immob

Hi John. When your engine is turned on, the immobilizer light should briefly turn on. This lets you know that the security system is working; if the immobilizer light does not briefly come on, the system is not functioning properly....

will a 2008 engine from a pontiac g6 gt fit in my 2006 pontiac g6 gt

The 2006 engine is a LX9 motor and the 2008 engine is a LZ4 motor and they are different. I have never tried to swap these two motors to see the differences and would recommend to replace the motor with...

I have a 2009 gmc yukon SLT. I noticed my front lights slightly dim during the dark hours. Auto Zone diagnose my battery good at 9

Hi there. Typically when you have dimming headlights, it's due to an electrical relay that is loose, damaged or faulty in some capacity. It can also be due to excessive dirt or a build-up of debris on the headlights itself....

Do you provide parts when repairing like o2,sensors

Yes, of course, any needed, or desired, repair parts can be made part of any repair order so that you do not have to go through the time and trouble of researching and procuring repair parts. I see you are...

does a cracked exhaust manifold cause oil to leak

A damaged exhaust manifold does not affect engine oil consumption. Of serious concern though is the possibility that the cracked manifold is leaking exhaust gas (including poisonous carbon monoxide) into the passenger cabin, typically through the firewall and vents. If...

Engine fault warning lamp flashing

Hey there. This may suggest a short or potentially a bad fuse or relay problem related to your AC. Your car's computer has what is known as a "fail safe" default that is engaged when the computer detects an electrical...

Spark Plug Gap Issue

When the manufacture says .043 then a gap from .042 to .046 is okay. When we gap the spark plugs it is not an exact science and this is why we get as close to the recommended gap as possible....

Beeping noise after battery replacement

The horn in the vehicle acts as a switch. Activating the horn energizes a relay, which powers up the electronic horn located under the hood. It is possible that the relay in the circuit has experienced a malfunction, where the...

What does the Service All-Wheel Drive message mean?

The Service All-Wheel Drive message can appear in the driver information center (DIC) when your vehicle is having an issue with the all-wheel drive (AWD) system. If the DIC displays this alert, stop your vehicle as soon as possible, turn...

Related articles

A Buyer’s Guide to the 2012 Mercedes-Benz G-Class
Combining Combining rugged performance with an iconic boxy exterior style, the 2012 Mercedes-Benz G-Class is a hallmark of the SUV segment. It manages to combine true off-road capabilities with luxurious comfort and outstanding on-road performance in a way that most...
A Buyer’s Guide to the 2012 Lexus GX 460
It It may be hard to believe, but luxury and adventure can go hand in hand – especially with the 2012 Lexus GX 460. From its luxurious interior with a variety of features to its high-quality build, off-road prowess and...
Signs You Need New Car Brakes
Car brakes are essential to maintain for safety. Spongy brake pedals and a shaky steering wheel are signs to change the brake pads or brake rotors.