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#6: 07-03-2013, 08:25 PM
Title: Member
Location: Wisconsin
Car: '17 Outback 2.5i Premium
Posts: 123
iTrader: (0)
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I fixed this on my car by replacing the one-way valve in the vacuum hose between the intake and the brake booster. If the valve doesn't hold vacuum, you get more boost when the RPMs return to low idle (several seconds after you take your foot off the gas).
The Following 2 Users Say Thank You to ronemus For This Useful Post:
DonnyJagaru (10-09-2014), quick4dr (07-05-2013)