michaelshrimpton Posted March 22, 2015 Share Posted March 22, 2015 Sorry if this is posted in the wrong section (first post) My car is idling rough, and seems to have a lack of power - struggles with hills etc & intermittently won't start (more so cold start). I have nothing to compare the car to as its my first car. I had the bonnet open yesterday and took the air box off and could hear a loud hissing from the right side of engine (as you look at it). I finally manged to track where the hissing was coming from and it seems to be coming from the fuel line -or the fuel pressure regulator valve. I'm not 100% sure if it was from the valve or the hose connecting has a split in it. Question is, is it normal for there to be hissing from this area on this type of engine - and also could this hissing be causing the rough idle and lack of power? Any help or advice would extremely appreciated! :) Thanks. Quote Link to comment Share on other sites More sharing options...
Dan62 Posted March 22, 2015 Share Posted March 22, 2015 The vacuum comes from the intake manifold so any leak will cause idle problems. Seems you have located the problem. Quote Link to comment Share on other sites More sharing options...
michaelshrimpton Posted March 22, 2015 Author Share Posted March 22, 2015 oh good thank you, would this lead to the car not starting sometimes too? and feeling a bit sluggish? Quote Link to comment Share on other sites More sharing options...
Dan62 Posted March 22, 2015 Share Posted March 22, 2015 I don't know. Its worth pulling the HT leads and checking the spark plug wells are free of water as this is a fairly common issue. Quote Link to comment Share on other sites More sharing options...
michaelshrimpton Posted March 22, 2015 Author Share Posted March 22, 2015 plugs and leads have been changed recently so i doubt its them Quote Link to comment Share on other sites More sharing options...
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