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Jerry, Master Mechanic
Category: Chrysler
Satisfied Customers: 17220
Experience:  ASE Master tech. 30+ years mechanic, shop forman, service manager
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A freezing cold day, is my brake pedal very hard to push and I

Customer Question

Why on a freezing cold day, is my brake pedal very hard to push and I have no brakes. But on a warm day, everything is ok?
Submitted: 8 years ago.
Category: Chrysler
Expert:  Jerry replied 8 years ago.

Hello and welcome to Just, Super mechanic here. About your vehicle.


It sounds like the power brake booster is going bad. You would want to make sure that there is good vacuum to it when that happens just to be sure. There should be about 18"


It may have gotten some moisture in it that is freezing, or it is a hard (rubber) diaphram.