Q: Brakes don't work correctly at temperatures below zero

asked by on

The brakes in my car quit working when the temperatures are below zero. If I try to apply the brakes, the pedal wouldn't go all the way but just to the certain point and then becomes blocked for 10-20 seconds. After that, the brake pedal would go all the way down and start working again. I went to the dealer because of this problem and they said everything is fine. I was told that I should get the brakes warmed up before I start driving the car. I guess I need another opinion on the issue. Do you think that the braking system in my car is faulty or is this normal? Thank you in advance.

There are two brake booster vacuum check valves that will stick in cold weather for about a minute. These two valves supply vacuum to the brake booster and will cause reduced power assist to the brakes until they start to open and allow vacuum. The two vacuum check valves should be replaced with one with the new design. These were covered under a bulletin, but the bulletin is no longer active for free replacement. However, the parts should still be available. The old ones are white and the new ones are bigger and black in color. The valves are in the vacuum lines from the booster to the engine in two places in the line. Have your brake pedal problem inspected and repaired by a certified technician to ensure that you can get back on the road safely.

Was this answer helpful?
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. Brakes don't work correctly at temperatures below zero

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: Ignition switch starting in section step. All accessories come on dash but the check engine light is not coming on.

Hi, thanks for writing in. I am not completely sure how to interpret your question, so I will touch base on a few things hoping it will help you out. If I interpret correctly, your car takes two key cycles,...

Q: coolant leaking from injector 3

This could be from a couple of problems that may be unrelated. The first question is from where, specifically, the coolant is leaking. Depending on where the leak is coming from and if there are any other...

Q: Brake pedal goes to the floor when the engine is on

The first thing you'd want to do of course is pull off all the wheels and look for the leaks. But if you have no leaks, yours is the classic sign of a bad brake booster. When brake boosters go...

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...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.