Petersubaru Posted February 11, 2008 Share Posted February 11, 2008 Just wondering today with "0"deg F outside that when first starting to brake, it takes a short time to build up pedal pressure to aid in brakeing..once the car is warmed up, no more problem ('86 ea82 turbo auto) Link to comment Share on other sites More sharing options...
Skip Posted February 11, 2008 Share Posted February 11, 2008 Howdy Peter, This comes up every winter. Couple times already the last month or so. There is a check valve in the large vacuum line to the booster. This valve gets frozen restricting the vacuum to the booster. Cleaning and spraying it out with a moisture displaceant (WD40) normaly get it back to normal. Hope this helps. Link to comment Share on other sites More sharing options...
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