Jump to content


Photo

Idle Hunting When Warm Engine. 1.6 Petrol Se.


  • Please log in to reply
4 replies to this topic

#1 z0M813M4N

z0M813M4N

    Newbie

  • New Member
  • Pip
  • 5 posts
  • Name: Lee
  • Ford Model: Focus
  • Year: 2002
  • Location: Kent

Posted 21 June 2012 - 04:37 PM

Why oh why does my Focus occasionally rev hunt, 500 to 900 or a 1000 rpm when warming up or warmed up, especially when coming to a stop at traffic lights. Ive tryed so many things it might be on the net, Pcv valve and hose, Icv, air leak, plugs,leads, all new!, but it still idle hunts 9 times out of 10 when stopped.When coming to a stop the revs raise to about 900 then settle to 700 rpms which is normal when clutch is pressed and released. But when stopped the revs will hunt 500 to maybe 1000 rpm's on there own up and down. Any ideas anyone! Ive been told when it has had a new cambelt fitted sometimes you may need the car pcm updated which may cure problem is that true.? Car runs fine otherwise no missing or hesitation.

Have something to contribute?

Sign in or register to start a topic...



Sign up to FOC Premium Membership To Remove These Ads

#2 Andy 1965

Andy 1965

    Settling In Well

  • New Member
  • PipPipPip
  • 82 posts
  • Name: Andy
  • Ford Model: Focus 1.6 Zetec
  • Year: 2002
  • Location: Scotland

Posted 21 June 2012 - 04:51 PM

Try checking the Throttle Position Sensor.

#3 z0M813M4N

z0M813M4N

    Newbie

  • New Member
  • Pip
  • 5 posts
  • Name: Lee
  • Ford Model: Focus
  • Year: 2002
  • Location: Kent

Posted 23 June 2012 - 09:35 PM

Ive actually swapped my father in-laws Throttle Position sensor over with mine just to see and made no difference, at all. Stupid car!

#4 martyntdci

martyntdci

    Ford Enthusiast

  • True Ford Enthusiast
  • PipPipPipPipPip
  • 1,551 posts
  • Name: martin
  • Ford Model: focus titanium x/comms/sports pack
  • Year: 2008
  • Location: Staffordshire

Posted 25 June 2012 - 04:47 PM

take of the throttle body n give it a good cleaning, there should be a little breather hole in side this does get badly clogged up hence what your experiencing.....

#5 martyntdci

martyntdci

    Ford Enthusiast

  • True Ford Enthusiast
  • PipPipPipPipPip
  • 1,551 posts
  • Name: martin
  • Ford Model: focus titanium x/comms/sports pack
  • Year: 2008
  • Location: Staffordshire

Posted 25 June 2012 - 04:49 PM

take of the throttle body n give it a good cleaning, there should be a little breather hole in side this does get badly clogged up hence what your experiencing.....


carb cleaner of its valuant


Not what you're looking for?

Register now, we have a huge community of enthusiasts to answer any questions you might have



0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users