jim4 Posted January 12, 2008 Report Posted January 12, 2008 I have a 2.3 petrol mark 1 Gal 1999 year. I've not driven it much over the Xmas break. Back behind the wheel this week it strikes me that it seems to remain at higher than I'd expect revs as you pull up to a junction. Say around 1500 rpm rather than normal tickover of about 900 rpm. When you actually stop it does drop down quickly to 900rpm but there is a delay when the clutch is in before the revs drop. Do they all do this? Thanks. Jim Quote
jim4 Posted January 15, 2008 Author Report Posted January 15, 2008 Thanks mk2vr6. I've just done a search on ISV so know what to check out next......Thanks for your help. Quote
kevb Posted January 28, 2008 Report Posted January 28, 2008 mine too is doing the same did you fix yours and was it easy job or one for the garage. Quote
jim4 Posted January 28, 2008 Author Report Posted January 28, 2008 mine too is doing the same did you fix yours and was it easy job or one for the garage. I'm going to ask my friendly local garage to have a look when it goes in for a service in a month or so. Quote
wibble Posted May 18, 2008 Report Posted May 18, 2008 I have a 2.3 petrol mark 1 Gal 1999 year. I've not driven it much over the Xmas break. Back behind the wheel this week it strikes me that it seems to remain at higher than I'd expect revs as you pull up to a junction. Say around 1500 rpm rather than normal tickover of about 900 rpm. When you actually stop it does drop down quickly to 900rpm but there is a delay when the clutch is in before the revs drop. Do they all do this? Thanks. Jim I used to hook my foot under the accelerator and pull it up. It worked but I shouldn't have had to do it Quote
oakey dokey Posted March 24, 2009 Report Posted March 24, 2009 ISV sticking?  what is this isv??? and where is it? thanks Quote
gaznlou Posted March 25, 2009 Report Posted March 25, 2009 ISV = Idle stability valve (air bypass valve) Quote
oakey dokey Posted March 25, 2009 Report Posted March 25, 2009 and where do i get one of these from and how do you fit????? Quote
gaznlou Posted March 26, 2009 Report Posted March 26, 2009 I am not saying this is your problem for 100%Â Problems with an excessive idle speed (as much as 3500RPM) or a fluctuating or hunting idle speed may be due a sticking Idle Stability Valve (known to ford dealers as an Air Bypass Valve). Removing, cleaning and refitting takes about 15 minutes easy work, so it Quote
oakey dokey Posted March 26, 2009 Report Posted March 26, 2009 I am not saying this is your problem for 100%Â Problems with an excessive idle speed (as much as 3500RPM) or a fluctuating or hunting idle speed may be due a sticking Idle Stability Valve (known to ford dealers as an Air Bypass Valve). Removing, cleaning and refitting takes about 15 minutes easy work, so it Quote
gaznlou Posted March 27, 2009 Report Posted March 27, 2009 No problem, hope this solves it.Don't forget to let us know. It may help someone else one day. Quote
galaxy20 Posted April 1, 2009 Report Posted April 1, 2009 My galaxy 2.0 does the exact same thing, but its not the ISV as i had a new one fitted due to it idling too low, so it must be something else. Quote
gaznlou Posted April 2, 2009 Report Posted April 2, 2009 Next cheapest option is the throttle body. Quote
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