Jump to content


Photo

Tdci Issue Cylinder 4 Above Knock Threshold

please help

  • Please log in to reply
9 replies to this topic

#1 fish 10

fish 10

    Member

  • Members via FB
  • PipPip
  • 14 posts
  • Ford Model: mondeo 20 tdci
  • Location: Swansea

Posted 01 March 2013 - 05:22 PM

my mondeo heater plug light keeps flashing,cars feels like its running on three cylinders it is very smokey and sluggish ,i put it on my scanner and code p2339 comes up with cylinder 4 above knock threshold is it a faulty knock sensor or some thing more serious



Have something to contribute?

Sign in or register to start a topic...

Sign up to FOC Premium Membership To Remove These Ads

#2 mintalkin

mintalkin

    Ford Enthusiast

  • True Ford Enthusiast
  • PipPipPipPipPip
  • 3,466 posts
  • Name: mintalkin
  • Ford Model: mondeo tdci 130
  • Year: 2006
  • Location: Staffordshire

Posted 01 March 2013 - 09:43 PM

9 out of 10 times this will be down to a knackerd injector,get a leek off test done which should comfirm this.



#3 wase16ll

wase16ll

    Ford Enthusiast

  • True Ford Enthusiast
  • PipPipPipPipPip
  • 1,133 posts
  • Name: Tony
  • Ford Model: granada
  • Year: 1992
  • Location: Greater London

Posted 01 March 2013 - 10:51 PM

it could be just injector needs re programming...common fault,

if your scanner can do injector programming be aware that when it says cylinder 4 it probably means the 4th cylinder in the firing order, which i believe, on this engine is actually no2.

if your scanner is capable, can run you through the process, otherwise needs to go to a diesel specialist.



#4 fish 10

fish 10

    Member

  • Members via FB
  • PipPip
  • 14 posts
  • Ford Model: mondeo 20 tdci
  • Location: Swansea

Posted 02 March 2013 - 09:34 AM

thanks guys will try to re programe it my self this morning just had f super mk 2 through post this morning ,hope this will do the job fingers crossed



#5 FOCA

FOCA

    Feet on the table

  • True Ford Enthusiast
  • PipPipPipPipPip
  • 2,814 posts
  • Name: FOCA
  • Ford Model: Mondeo Mk3 Sleeper 194 flb.p.t.
  • Year: Non
  • Location: Scotland
Contributor

Posted 02 March 2013 - 10:39 AM

thanks guys will try to re programe it my self this morning just had f super mk 2 through post this morning ,hope this will do the job fingers crossed

 

Off the top of my head works ok on post - 2004 Mk3 Mondeos but may be difficult to recode the injectors on earlier engines with the F-super

 

Some of the early Mk3s are non OBD2 and use a completeley different ECU

 

You don't say what year your Mondeo is

 

Is that the cylinder connected to the EGR valve? (phisically 2nd from the left, as viewed from the front)  



#6 fish 10

fish 10

    Member

  • Members via FB
  • PipPip
  • 14 posts
  • Ford Model: mondeo 20 tdci
  • Location: Swansea

Posted 02 March 2013 - 12:36 PM

its a 53 plate if thats any help can re program the injectors no problem but wont bring the codes up for me confused,it says read injector press ok then nothing press reprograme injector and every thing comes up ba the codes egr to the left atached to the inlet manifold



#7 FOCA

FOCA

    Feet on the table

  • True Ford Enthusiast
  • PipPipPipPipPip
  • 2,814 posts
  • Name: FOCA
  • Ford Model: Mondeo Mk3 Sleeper 194 flb.p.t.
  • Year: Non
  • Location: Scotland
Contributor

Posted 02 March 2013 - 01:37 PM

If the codes have been cleared no fault codes will come up at least untill the engine/ car is run again, perhaps for a few miles or until the conditions that generate the fault code happen

 

 

EGR stands for Exhaust Gas Recirculation, there is a "hole"/ connector on the exhaust manifold, close to the exhaust port of the 2nd cylinder from the left, as seen standing looking back with the bonnet open - i wondered if this was the faulty cylinder, and speculated if this was somehow connected in some way and it was not a coincedance that the faulty cylinder/ injector was the one connected to the EGR

 

that 2nd cylinder / part of the exhaust manifold, connects to the EGR cooler, it then goes into a metal pipe, which goes around the engine block/ head (on the right-hand side) before connecting to the EGR valve housing on the front (left-hand-side) which connects to the inlet manifold      



#8 mintalkin

mintalkin

    Ford Enthusiast

  • True Ford Enthusiast
  • PipPipPipPipPip
  • 3,466 posts
  • Name: mintalkin
  • Ford Model: mondeo tdci 130
  • Year: 2006
  • Location: Staffordshire

Posted 02 March 2013 - 05:11 PM

the super f will only read codes on mondeos with a buld date after feb 03, but the injector codes should be on a lable on the end of the engine if there the origanal injectors.



#9 wase16ll

wase16ll

    Ford Enthusiast

  • True Ford Enthusiast
  • PipPipPipPipPip
  • 1,133 posts
  • Name: Tony
  • Ford Model: granada
  • Year: 1992
  • Location: Greater London

Posted 02 March 2013 - 08:14 PM

http://www.autodiagn...ing_tdci_ad.pdf

 

you might find the above very useful



#10 fish 10

fish 10

    Member

  • Members via FB
  • PipPip
  • 14 posts
  • Ford Model: mondeo 20 tdci
  • Location: Swansea

Posted 02 March 2013 - 09:32 PM

mintalking thanks for your advice you were spot on with the label on the engine all injector codes were there and some one even numberd them to each cylinder will re programe in the morning thanks for your advice and your help one very happy person ,and garage quoted me 100 for new injector 25 pound to programe it and theyll fit it free think they felt sorry for me paid 2500 for it one owner full service history but been playing up since ive had it many thanks



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




Also tagged with one or more of these keywords: please help

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users