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Old 03-05-2013, 09:51 PM
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edmsvx edmsvx is offline
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Join Date: Jan 2005
Location: Calgary, Alberta, Canada
Posts: 89
Re: below freezing, braking problems.

Quote:
Originally Posted by Crazy_pilot View Post
Given that it improves as the car warms up, I'm wondering if maybe there's a moisture issue in the brake booster or the vacuum line from the manifold. Is it the pedal firmness that changes or the "grabiness" of the brake pads?
This is a common problem, I expect that the check valve in the line to the brake booster gets moisture in it and freezes. This means you do not get any vacuum assist when you apply the brake. I always apply the brake hard before I move the car to make sure that the pedal moves. The brake will be very hard and hardly move at all when you apply it. Once it moves you good to go. I have experienced this on both SVX, 90 Legacy, and 01 Outback. Expect Subaru must have made so changes as I have yet to experience this on my 09 Legacy Spec B.
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1992 (JDM) CXD Ebony Pearl 90K km written off hail damage
1996 (CDN) Lsi, Polo Green, 296,000 km
2009 Legacy Spec B
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