purple headed warrior Member 33 Member For: 19y 2m 18d Gender: Male Location: Toowoomba, QLD Posted 09/05/08 09:56 AM Share Posted 09/05/08 09:56 AM Hello,I was wondering if anyone knows what the vacuum hose does? (The hose which goes into the engine behind the cross over pipes)I broke mine and am waiting to get a new one on Tuesday (tried Thursday just gone but ford id not have any in stock).I have noticed a change in the revs, they don't drop during a gear change, does it have something to do with the fuel mix? Link to comment https://www.fordxr6turbo.com/forum/topic/45344-vacuum-hose/ Share on other sites More sharing options...
ETM Member 1,194 Member For: 18y 3m 6d Gender: Male Location: syd south Posted 09/05/08 10:07 AM Share Posted 09/05/08 10:07 AM that's your pcv line and yes it will have an effect if left open.firstly the plenum will have vacuum leak and possibly a boost leak if the 1 way valve has been removed.secondly your crankcase is not being sucked of its vapours/pressure and could lead to sluggish performance and oil leaks from strange places. Link to comment https://www.fordxr6turbo.com/forum/topic/45344-vacuum-hose/#findComment-673626 Share on other sites More sharing options...
Fat-Tony Member 5,364 Member For: 19y 2m 29d Posted 09/05/08 10:12 AM Share Posted 09/05/08 10:12 AM Not to mention pressure being placed on the oil seals of the turbo. Link to comment https://www.fordxr6turbo.com/forum/topic/45344-vacuum-hose/#findComment-673630 Share on other sites More sharing options...
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