Calgary Jeep Association

4x4 Related Groups => Tech Talk => Topic started by: bdron on March 10, 2009, 07:52:46 AM

Title: cold temp brakes frozen
Post by: bdron on March 10, 2009, 07:52:46 AM

when the temp drops to -20 or so my power brakes are frozen. any ideas what it could be?

Title: Re: cold temp brakes frozen
Post by: wrenchead99 on March 10, 2009, 12:25:56 PM

define "frozen"??   hard to push pedal or pedal will not move at all??  if hard to push, suspect a bad vac booster.  if won't move at all, excessive moisture in the master cylinder could be the culprit

Title: Re: cold temp brakes frozen
Post by: bdron on March 10, 2009, 01:19:30 PM

the pedal is hard as a rock, after I pound my foot on it a few times it starts to move.

Title: Re: cold temp brakes frozen
Post by: Dragonmaster on March 10, 2009, 06:00:48 PM

Time to replace all of your brake fluid.  Over time the fluid absorbs moisture and eventually becomes laden with moisture and the freezng and boiling points change.