Jump to content


Show
Photo

Hesitation Going Downhill And When Cold.


Best Answer slemon123, 01 November 2013 - 06:18 PM

Just got the report sheet from the garage. There was a leak off the pipe on injector number 3. It was removed cleaned sealed and retested. Great deal. Go to the full post


  • Please log in to reply
23 replies to this topic

#1 slemon123

slemon123

    Settling In Well

  • Budding Enthusiast
  • PipPipPip
  • 44 posts
  • Name: barry
  • Ford Model: Mondeo
  • Year: 2008
  • Location: Kerry

Posted 28 October 2013 - 12:42 PM

Hi Guys. My 2008 mondo hesitated when it's cold and usually going down hill. Also noticed it when on cruise control. Any ideas what might be wrong? I'm thinking it might be injectors. Any advice will be welcome. Thanks.

Have something to contribute?

Sign in or register to start a topic...

Sign up to FOC Premium Membership To Remove These Ads

#2 stooge75

stooge75

    Too much time on the boards

  • True Ford Enthusiast
  • PipPipPipPip
  • 654 posts
  • Ford Model: Mondeo tdci zetec
  • Location: Angus

Posted 28 October 2013 - 01:53 PM

have you tried new fuel filter?



#3 slemon123

slemon123

    Settling In Well

  • Budding Enthusiast
  • PipPipPip
  • 44 posts
  • Name: barry
  • Ford Model: Mondeo
  • Year: 2008
  • Location: Kerry

Posted 28 October 2013 - 02:04 PM

Yes. I changed it along with oil and oil filter 2 weeks ago. It doesn't happen all of the time and usually when I start up the car I know by the sound if the drive ahead is going to be like that or not.

#4 stooge75

stooge75

    Too much time on the boards

  • True Ford Enthusiast
  • PipPipPipPip
  • 654 posts
  • Ford Model: Mondeo tdci zetec
  • Location: Angus

Posted 28 October 2013 - 02:14 PM

I think you'd be better going to a local ford dealer or someone who has a Ford IDS vcm. they can plug it in & get all your live data etc. It'll tell them exactly what fuel pressure,sensors etc are returning. It should only cost a max of £40 (ish)



#5 jeebowhite

jeebowhite

    Resident Loon

  • Super Mod
  • 15,299 posts
  • Name: James
  • Ford Model: Sea Grey Mondeo MKIV 1.8TDCi 140ps Zetec
  • Year: 2007
  • Location: Kent
Contributor

Posted 28 October 2013 - 02:49 PM

is it the same with or without cruise?



#6 slemon123

slemon123

    Settling In Well

  • Budding Enthusiast
  • PipPipPip
  • 44 posts
  • Name: barry
  • Ford Model: Mondeo
  • Year: 2008
  • Location: Kerry

Posted 28 October 2013 - 03:49 PM

It's the same with and without cruise control. It can happen anytime but I've noticed that it happens a lot going downhill.

#7 stooge75

stooge75

    Too much time on the boards

  • True Ford Enthusiast
  • PipPipPipPip
  • 654 posts
  • Ford Model: Mondeo tdci zetec
  • Location: Angus

Posted 28 October 2013 - 04:08 PM

if you're goin downhill,& put it in neutral,can you rev it right up? does it hesitate then?(the revs i mean)

faulty maf sensor can cause this but so can lot of other things. get the data readings read i'd say.

Have you tried resetting the ecu?



#8 slemon123

slemon123

    Settling In Well

  • Budding Enthusiast
  • PipPipPip
  • 44 posts
  • Name: barry
  • Ford Model: Mondeo
  • Year: 2008
  • Location: Kerry

Posted 28 October 2013 - 04:50 PM

I must give that a go and get back to you on it.

#9 slemon123

slemon123

    Settling In Well

  • Budding Enthusiast
  • PipPipPip
  • 44 posts
  • Name: barry
  • Ford Model: Mondeo
  • Year: 2008
  • Location: Kerry

Posted 28 October 2013 - 05:35 PM

I actually just took out the MAF sensor and they don't look too shiny but rather dull and brownish. Can this sensor be cleaned or not as the wires are semi enclosed in the sensor housing. This is one like the one in my Mondy ImageUploadedByFord OC1382981136.576131.jpg

#10 stooge75

stooge75

    Too much time on the boards

  • True Ford Enthusiast
  • PipPipPipPip
  • 654 posts
  • Ford Model: Mondeo tdci zetec
  • Location: Angus

Posted 28 October 2013 - 05:44 PM

got to admit,Ive never come across this particular type before.Id get some electrical contact cleaner. I wouldnt use carb cleaner as it degrades plastics.Give it a good scoot & let it dry out. Dont aim the jet of cleaner directly at the wires though & dont touch them with anything,as theyre very delicate.



#11 slemon123

slemon123

    Settling In Well

  • Budding Enthusiast
  • PipPipPip
  • 44 posts
  • Name: barry
  • Ford Model: Mondeo
  • Year: 2008
  • Location: Kerry

Posted 29 October 2013 - 09:03 AM

@stooge75. Ok. I tried revving while in neutral going downhill. No hesitation but... I revved to 3000rpm and released the throttle the car continued to rev to 4000rpm before coming back down. I did this 3 times and the same each time. Any wiser?

#12 stooge75

stooge75

    Too much time on the boards

  • True Ford Enthusiast
  • PipPipPipPip
  • 654 posts
  • Ford Model: Mondeo tdci zetec
  • Location: Angus

Posted 29 October 2013 - 05:00 PM

personally if it was mines I'd want to get it scanned on a dealer level Ford IDS vcm. the software they have will tell them exactly(or it should) what sensor isnt working properly.It could be 1 of too many things & its no good chucking money & parts at it without knowing what these results will be. It'd be worth the £40 (approx) to have it done.

It could be anything from clutch sensor,(had similar prob on own car but only when changing gear but have been told from ford that if clutch pedal sensor elecs are sticking it could also cause probs when not pressed),accelerator pedal(fly by wire),air sensor,idle control,etc

It would be worth getting it done though i think



#13 slemon123

slemon123

    Settling In Well

  • Budding Enthusiast
  • PipPipPip
  • 44 posts
  • Name: barry
  • Ford Model: Mondeo
  • Year: 2008
  • Location: Kerry

Posted 29 October 2013 - 05:13 PM

Yeah. Will defo have to get that done. As soon as I get a chance to pop over to a ford dealer I'll update on the outcome. Hopefully nothing too serious.

#14 slemon123

slemon123

    Settling In Well

  • Budding Enthusiast
  • PipPipPip
  • 44 posts
  • Name: barry
  • Ford Model: Mondeo
  • Year: 2008
  • Location: Kerry

Posted 01 November 2013 - 02:46 PM

Well I'm just out of the ford garage and had the full diagnostics done. Took 90 mins so it was thorough. One if the injectors was leaking fuel. Thankfully my problem was small and it got sorted on the spot. Thanks for the input guys.

#15 jeebowhite

jeebowhite

    Resident Loon

  • Super Mod
  • 15,299 posts
  • Name: James
  • Ford Model: Sea Grey Mondeo MKIV 1.8TDCi 140ps Zetec
  • Year: 2007
  • Location: Kent
Contributor

Posted 01 November 2013 - 04:30 PM

what was the final bill?



Have something to contribute?

Sign in or register to start a topic...


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