1. Check your coolant level. My mondeo would speed up the engine to counter a power drain. - The cooling fan was constantly running, the thermostat was only sensing air because head gasket was leaking. whilst on idle this constant running fan would drain the battery so the ECU ups the revs to compensate.
2. There is a small rubber T behind the coil pack that perishes this lets in air to the mixture and upsets the ECU. See posted pic. http://quantumowners.googlegroups.com/web/Zetec%20T.jpg?hl=en <http://quantumowners.googlegroups.com/web/Zetec%20T.jpg?hl=en&gsc=G4T5oAsAA ACIHacuZNMku0nReTN0If9M> &gsc=G4T5oAsAAACIHacuZNMku0nReTN0If9M this did weird things to idle. Hope this helps. Gary _____ From: [email protected] [mailto:[email protected]] On Behalf Of Matthew Sent: 04 April 2009 16:12 To: [email protected] Subject: [Quantum Owners] Re: Tick over It's not your fan kicking in is it? (or some other load starting) If the engine is causing the car to shudder (as in physically detectable by some form of motion) then it must be speeding up or slowing down. The XR2 rev counters are pretty inaccurate anyway and doubtful you'd notice them change reading as they don't move fast enough. I can see such things on my 2+2 when I have the laptop connected to the ECU but can't tell on the XR2 rev counter. Matthew _____ From: [email protected] [mailto:[email protected]] On Behalf Of Stuart Carvell Sent: 04 April 2009 14:30 To: Quantum Owners Subject: [Quantum Owners] Re: Tick over There is no visable change in revs on the revometer. It just feels like a little shugger? Stuart _____ From: [email protected] To: [email protected] Subject: [Quantum Owners] Re: Tick over Date: Sat, 4 Apr 2009 11:14:39 +0100 In theory it shouldn't shudder. Are the revs hunting or is it almost stalling then recovering? My 1800 used to hunt by 200 rpm or so and I can't remember if I fixed it or not. Certainly it did something a bit odd and resetting the ECU sorted it out once. Matthew _____ From: [email protected] [mailto:[email protected]] On Behalf Of Stuart Carvell Sent: 04 April 2009 10:34 To: Quantum Owners Subject: [Quantum Owners] Tick over When my zetec is on idle i can feel the engine shugger every now and again. More when i sit still for longer. Its maybe about once every 7 seconds? Is this normal? Why does it do it? Thanks Stuart _____ Surfing the web just got more rewarding. Download <http://extras.uk.msn.com/internet-explorer-8/?ocid=T010MSN07A0716U> the New Internet Explorer 8<BR Upgrade to Internet Explorer 8 Optimised for MSN. " Download Now <http://extras.uk.msn.com/internet-explorer-8/?ocid=T010MSN07A0716U> <BR No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.238 / Virus Database: 270.11.41/2040 - Release Date: 04/03/09 17:54:00 --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/quantumowners?hl=en IMPORTANT NOTE: All information presented herewith is provided on an "As Is" basis, without warranty or the implication thereof. Neither the Quantum Owners Club nor the individuals associated with the Quantum Owners Club or in the preparation of the above information shall have any liability to any person or entity with respect to liability, loss, or damage caused or alleged to be caused directly or indirectly by the instructions contained within this or related message(s). -~----------~----~----~----~------~----~------~--~---
