Mk3 Mondeo TDCi Poor MPG Updated

[TIFF]

i bit fiddly but nothing to hard..........

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[Brian]

Have just ordered one will give it ago must remember to fill it up before i fit it


Brian

[mk3sparky]

Originally Posted by st3v3

No Tiff it shouldnt affect the performance, by blanking off what you are doing is taking some of the fumes from the burnt fuel and stopping them entering the engine to be reburnt again, so efectively only letting in outside normal air now instead a mix of air and fumes,be aware though, if you have the electrical connector on the EGR and you blank it off, the ecu *MIGHT* read a resticted air flow and put on the engine managment light, How ever some people have had no problems at all with this, some have.

mondeo tdci 130 estate 174000 miles 06 plate
cleaned out my egr last night with carb cleaner was sh--ed up badly,inlet was not to bad so left it,time permitting-the car smoked really bad before especially at night when car lights are behind you and put foot to the boards,last night i also blanked off my egr and today no smoke at all and drove 170 miles today and read 53.8 mpg but this afternoon the engine management light came on, no loss in performance though just the light on, is there anything i can do to fool the light or do i have to remove the blank plate i am getting better mpg now the blank is on definitely

[TIFF]

Bit of an update........

Car is still only getting about 34mpg round town, this is with me trying to get it up aswell.....

Where exactly are these sensors that could do with changing...

One on the water pump......easy enough...

Where are the others and what are they caled ect.....so i can get them ordered

[TIFF]

Ok peeps

what are the actual sensors that need changing.... What do I need to ask for.

And what is this valve on the waterpump??

[st3v3]

Originally Posted by mk3sparky

mondeo tdci 130 estate 174000 miles 06 plate
cleaned out my egr last night with carb cleaner was sh--ed up badly,inlet was not to bad so left it,time permitting-the car smoked really bad before especially at night when car lights are behind you and put foot to the boards,last night i also blanked off my egr and today no smoke at all and drove 170 miles today and read 53.8 mpg but this afternoon the engine management light came on, no loss in performance though just the light on, is there anything i can do to fool the light or do i have to remove the blank plate i am getting better mpg now the blank is on definitely

here is a potetial way of fooling the EML you may have to register on the forum to view:
http://www.fordmondeo.org/forum/show...search/1/tp/1/

[st3v3]

Originally Posted by TIFF

Ok peeps

what are the actual sensors that need changing.... What do I need to ask for.

And what is this valve on the waterpump??

After searching for what seems ages, i believe that valve is a kind of a pressure release valve of some sort mate.

I cant help on the sensors that need changing BUT if you clean the MAF, very carefully with a cotton bud and some kind of brake and carb cleaner, you should see a better mpg this way also.

hope this helps.

[TIFF]

done the MAF sensor Steve.......... seems to drive slightly better Just want to get these sensors changed now....onece i know what they are

[TIFF]

[TurboShed]

A really good read this thread

[TIFF]

So people have changed these sensors.........but dont know what they were????

[liarco2001]

Cheers for the info people. Am gonna crack on with this stuff now the weather seems to be clearing. Didn't want to risk doin anything and getting it wrong cop my hands were cold lol. Cost me an arm and a leg over xmas and stuff tho. The only sensor i read in this thread is the camshaft position sensor which is on the top of the engine about 6 to 8 inches to the right of the oil filler cap.

[liarco2001]

Originally Posted by the youth

check the bottom pulley

steve

Hi mate. May sound stupid but what exactly am i checking? Had the pulley in on my peugeot hdi and could clearly see a strip of metal poking out of the side of it. Am i looking for summit similar or are there any other defining features to say its knackered. Cheers.

[TIFF]

Cam sensor and crack position sensor.........FINALLY!!!!!

[ronin_hungary]

After reading through this topic, I am definitely cleaning the EGR and maybe the intake. I have about 56.5k miles in the car (91,000 kms) and never had this done. I have the smoke, but as for mpg, I would say it varies. Motorway did not clean it as well as the regular "highway" (around 70-80 mph driving instead of constant 100 mph). I am curious how much carbon residue will come out.

Thanks for the great info here, I guess I will follow the wikiford link guide.

Cheers,

R.

ps.: Any idea what type of EGR do I have? (Car is a MY07 Jan, but windows say MY06 year end manufacturing).

[Alzay]

Have a few days off, so I thought I'd clean out my EGR valve today as I was thinking it may need a clean out.
I've read various threads about some who are clean and some that are really bunged up. Mines was the later.

My first comment was Holy Fuck there was about 8mm of a thick oil like coating round the inside of the EGR, it was horrible stuff.

I attacked it with brass brushes and 6 tins of carb cleaner - and my daughters baby bath to dunk the EGR in. shhhh
I've not taken the car out yet as the roads are too mucky at the moment to see if it improves my MPG.

Anyway pics

Yes Keith that is carpet on my garage floor.

Gummed up shit

It was really grim.



Initial clean


Most of the crap scrubbed off.


This is the stuff going through the engine. :crybaby:


Also took off all the pipework and manifold which was in a similar state.

It's an easier job to do on a Derv than on a V6 but the mess is very much the same.

[cozzymatt]

mine was also exactly like that! makes you wonder how it even works in that state!!

[furqall]

look at this inlet manifold from a transit !!!!!!!!!

[Rob..]

Originally Posted by furqall

look at this inlet manifold from a transit !!!!!!!!!

FK!

[TIFF]

Right peeps....bit of an update....

I have cleaned all the EGV ect and relaced the Cam sensor..........

But my MPG is still only 34mpg with town driving and on a run of 150mile it went up to 36mpg....but soon dropped back down.

Now what i have noticed is that when i start the car from cold i get a little white smoke, only for about 10 seconds then its fine.........

So i am thinking that i have a lazy injector somewhere............So does it just need recoding or will i need a new injector.......

Also....what injectors will my car have, its a 52 plate TDCi 115bhp model???

[mark_24v_wiring]

I'm going down the route of injector cleaner and then a recode but then i get the glow plug light flashing up every now and then too which dont help matters just looking at something on egay right now that the guy says will recode injectors if he comes back with a good answer to the question i just asked i'm gonna buy it and see if it works................ill keep ya posted

[st3v3]

Originally Posted by mark_24v_wiring

I'm going down the route of injector cleaner and then a recode but then i get the glow plug light flashing up every now and then too which dont help matters just looking at something on egay right now that the guy says will recode injectors if he comes back with a good answer to the question i just asked i'm gonna buy it and see if it works................ill keep ya posted

edited

[st3v3]

Tiff you need to make yourself a member of MEG and anyone else for that matter and read this it will save you money and the fella who does the reprograming on TDCI injectors i belive his name is Blizzard_UK


http://www.fordmondeo.org/forum/show...d/803949/tp/1/

[mark_24v_wiring]

Originally Posted by st3v3

DONOT USE ANY LIQUID INJECTOR CLEANER ON YOUR tdci i promise you its not a wise move and i will find the proof, to prove to you!!

BRB

Good enough reason for me dont worry i wont.


Been looking on MEG all afternoon and keep seeing what my problem is with diff soultions.

Prob best if i just lay it out and see what you guy's think.

Had the car for a while now 53 plate tdci 115bhp.

Ever since i got it the glow plug light randomly starts flashing and engine power goes qhuck turn of the key off and on sorted and it's working again.

I have changed and cleaned everything (Ford filters) apart from injectors or having them reprogramed.

It's got better but still does it.

Reading MEG earlier there is a guy there that has the same symtoms as me but his turned out to be an electric actuator????

Any ideas anyone??

[KregRS]

Originally Posted by TIFF

But my MPG is still only 34mpg with town driving and on a run of 150mile it went up to 36mpg....but soon dropped back down.

This maybe a stupid question, and I cant be arsed going back thru the thread to find out, but how are you getting your mpg? Are you working it out yourself, or relying on the dash display? And if it is the dash, are you resetting it each time you're checking?

[st3v3]

Originally Posted by mark_24v_wiring

Good enough reason for me dont worry i wont.


Been looking on MEG all afternoon and keep seeing what my problem is with diff soultions.

Prob best if i just lay it out and see what you guy's think.

Had the car for a while now 53 plate tdci 115bhp.

Ever since i got it the glow plug light randomly starts flashing and engine power goes qhuck turn of the key off and on sorted and it's working again.

I have changed and cleaned everything (Ford filters) apart from injectors or having them reprogramed.

It's got better but still does it.

Reading MEG earlier there is a guy there that has the same symtoms as me but his turned out to be an electric actuator????

Any ideas anyone??

I cant find the proof but found people who had problems then found people who hadnt, using different liquid injector cleaners, if i was you i wouldnt use it.
Thats why i edited my post.

I have similar from start up and i think sometimes its when the glow plug light hasnt gone out and i turn the key too early, i personaly think the ecu throws a quick wobbly because the glowplugd arent warmed or what ever they do, depending on the ambient temp.

[TIFF]

Originally Posted by KregRS

This maybe a stupid question, and I cant be arsed going back thru the thread to find out, but how are you getting your mpg? Are you working it out yourself, or relying on the dash display? And if it is the dash, are you resetting it each time you're checking?

Just going on the MPG screen in the car......... Dont reset it, just leave it to give me an average.....

[KregRS]

Originally Posted by TIFF

Just going on the MPG screen in the car......... Dont reset it, just leave it to give me an average.....

Try resetting it, after all it is an average, you might find you're getting better than you think.

[cozzymatt]

try resetting it.. it takes seconds for it to reduce but takes weeks for it to rise...

[Brian]

I reset mine every now and then as it goes up lol

Today when i got in the car it was reading 43mpg so i reset it and went for lunch and when i got home checked it and getting 50.2mpg


Brian

[TIFF]

i wil reset it next time i go out.......wil let you know what i see

[TIFF]

Just had 4 new injectors and a recode on the Mondeo............Car drives MINT now......

Its handy having Delphi on your doorstep eh

[DanW@FastFord]

Mind me asking how much you paid for that little lot? Presume you didn't get much (if any) change from £500?

Your symptoms sound like mine, but I reckon just one of my injectors is dicky (as the whole lot were replaced in September last year)

[mark_24v_wiring]

Tiff as yours is running right now can you do me a small favour and volt test your fuel rail pressure sensor please and let me know what you get.

3 wires middle is earth 1 should be 5v with ignition on it's the Reading from the other 1 I'm after at idle and 3000 rpm.

Mine don't match autodata just wondering if that's wrong or I have got closer to my fix

[TIFF]

Dan...............

I have a very good friend at Delphi........... you would be very shocked/jealous at what i paid.......

Mark....I wil do at the weekend mate...

[DanW@FastFord]

Ha, good work. Looks like I'll need to befriend a Delphi specialist then

[TIFF]

Dan....you have PM...

[mark_24v_wiring]

Originally Posted by TIFF

Dan...............

I have a very good friend at Delphi........... you would be very shocked/jealous at what i paid.......

Mark....I wil do at the weekend mate...

Cool ta Tiff

[liarco2001]

Originally Posted by mark_24v_wiring

Cool ta Tiff

Hi tiff, your mpg sorted yet?

[TIFF]

It's starting to climb now I have new injectors..