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Re: What to replace, eratic idle with brakes not applied Posted by MC [Email] (#1472) [Profile/Gallery] (more from MC) on Mon, 1 Apr 2013 11:25:49 In Reply to: Re: What to replace, eratic idle with brakes not applied, SWEDECAR [Profile/Gallery] , Sun, 31 Mar 2013 08:36:53 Members do not see ads below this line. - Help Keep This Site Online - Signup |
My guess would be brake booster. For a while they were kinda of notorious for having diaphragm leaks around here.
We have seen some get so bad that you can actually hear/feel the vacuum leak at the brake pedal assembly under the dash from inside the car.
Also seen some very subtle ones that throw off fuel-trim by ~10% for the longest time without much of any drivabilty or idle complaints.
I think that there may be an update for the brake booster vacuum line too. one with an extra check valve near the booster-pump. ...?
posted by 173.164.68...
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