Join Date: Feb 2013
Location: Long Island, NY
vacuum leak; possible culpret
My S3 always felt (rough idle and lack of power) like it had a vacuum leak. I could never find it. When I removed the windshield washer reservoir (starter swap), I noticed a thin disconnected hose leading down through the firewall below the high pressure ac hose. This had become disconnected, at some point, from a nipple just below the brake booster hose connection on the intake plenum. What is this for?
Since I have not yet replaced my starter and can't run the engine, I was wondering if this could be my problem...lack of power and rough idle! ....Or did I accidentally knock it off (I hope not) when I removed the ww res?! Could it have run, although poorly, with this much vacuum leak?
87 spider grad, 06 audi cab, 12 prius, 79 bellanca viking