Ford Scorpio Forum - Print Page


    
      
        Ford Scorpio Forum
        (https://www.fordscorpio.co.uk/cgi-bin/yabb/YaBB.pl)
      

        General >> Problems >> Ongoing idle problem
        
(Message started by: cossieguy on Dec 11^th, 2006, 8:38am)

Title: Ongoing idle problem
Post by cossieguy on Dec 11^th, 2006, 8:38am

An update of the symptoms: car starts fine and idles fine, however when warm and after a drive if you put the car in neutral or park the revs will surge to 1000 rpm. It doesn't do it every time but the revs wont drop to 750, if you drive off and put it n or p again it's a lottery as to what it will idle at 750 or 1000. Turn off the car and back on and it idles at 1000 if thats what it was idling at before you turned it off. Have new IACV fitted. As thought before its nothing to do with kickdown as I didn't kick it down at all yesterday and it still did it. What components decide what the idle rate will be? This is the only fault on my car and it's starting to annoy me.
Guy.

Title: Re: Ongoing idle problem
Post by Highlander on Dec 11^th, 2006, 9:17am

you've not got a sticky throttle cable maybe?

Title: Re: Ongoing idle problem
Post by cossieguy on Dec 11^th, 2006, 9:21am

Well maybe, but would it stick in exactly the same position to give 1000rpm? Where do you lubricate to ease it?
Guy.

Title: Re: Ongoing idle problem
Post by Highlander on Dec 11^th, 2006, 9:31am

possibly if has a kink or a frayed wire or a bit of dirt jammed in it.
Might be worth disconnecting it to see if you can feel any resistance plus you could run lubricant down the cable when its off.

My 24v's idle about 660-680 with the aircon off

Other than that it's going to be a hard one to find :-/

Title: Re: Ongoing idle problem
Post by cossieguy on Dec 11^th, 2006, 9:34am

Do you think my idle is quite high at 750 then? I'm going to get into the throttle body and clean that up and try lubing the throttle cable as soon as the weather gets better.

Title: Re: Ongoing idle problem
Post by Highlander on Dec 11^th, 2006, 11:41am

Is that the aircon off?

Title: Re: Ongoing idle problem
Post by cossieguy on Dec 11^th, 2006, 11:46am

Yes. Aircon off.