nocrap 0 Posted October 7, 2006 Hi all, Was fiddling about in the engine bay before and heard a sucking noise when the engine was running, discovers a vacuum pipe that wasn't connected that ran behind the engine into a one way valve. Looking further I found it was supposed to the underside of the air intake pipe, where it joins the throttle body along with another pipe which goes to the air box. My questions are: 1. What is this pipe that goes into the one way valve? 2. What is the correct way round that the 2 pipes need to connect?? 3. What is the orange device that they plug into??? (Picture below) Many thanks Quote Share this post Link to post Share on other sites
Crasher 3 Posted October 7, 2006 The rear pipe (the brass one if I remember) goes to the vacuum feed hose for the servo and the other hose goes to the air cleaner hot air flap unit that ducts hot air from the exhaust when required. The orange unit is a temperature sensing vacuum proportioning valve and they often leak. Quote Share this post Link to post Share on other sites
nocrap 0 Posted October 7, 2006 OK then, so whats the purpose of the servo one then? and does it matter which way round the pipes are connected? Quote Share this post Link to post Share on other sites
