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#31 The Bear

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Posted 12 March 2013 - 07:06 PM

Diagnostics successful!! :D   It's the "Glow Plug Module".

 

They are ordering the part tomorrow and having it fitted Friday morning.

 

£130 + VAT

 

Nice result. As I said before my knowledge (to now) is not great on Fords. However, on Vauxhall's diesels I've worked on it's just a relay that takes a few minutes to replace. :)

 

maybe thought they could, but then found their machine doesnt communicate with this particular car..
seen this happen many times
im in the trade, like you, i get astounded how many garages get involved with diagnostics when they have limited knowledge, its a very specialised field...so to hear a garage admit defeat rather than bill you for ££££s in guess work, think deserves credit.
favourite part of the job, invested thousands to help me with it, but i too am still learning and know my limitations...nothing has beaten me yet, but it will happen one day. especially if i dont carry on investing in the right equipment..something people should bear in mind when they question the cost of plugging in.

 

 I'm in college still learning but I think there's lots that the DIYer can do now also, especially with the net and youtube and stuff. If I wasn't looking to go in to the industry I'd defo get a code reader for home.

One thing you say (about spending money on the tools)... I didn't realise until I got in to a conversation with my teacher that even big garages/dealers would expect you to provide your own tools. I can understand independent garages doing that but big dealers too. Lucky I've built up a bit of kit over the last few years but still thought that was strange. Interesting! :)



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#32 Pirategirl

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Posted 12 March 2013 - 07:47 PM

It took them a while, but were confident once they had found what it was - relief! :)



#33 Preee

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Posted 12 March 2013 - 07:56 PM

Thats good news they have found the problem , and hope you don't have any more problems .

 

Now thats  sorted you will have to start our endless list of modifications to your car :)



#34 Stoney871

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Posted 12 March 2013 - 08:18 PM

Told ya it was likely something to do with glow plugs,(is there a difference between a glow plug relay and a module?) ;)

#35 Pirategirl

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Posted 12 March 2013 - 09:09 PM

Would love to do some mods Preee, just need to save a little money first!  Would like to change the bumpers and and headlights.



#36 Pirategirl

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Posted 12 March 2013 - 09:11 PM

So glad you asked Stoney..... you know I am hitting Google right now!  Hahahaha



#37 Pirategirl

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Posted 12 March 2013 - 09:19 PM

Here you go :P

 

A normal glow plug relay only controls the function of the glow plugs. A glow plug control module is a requirement for emissions regulations. It communicates with the power train control module (PCM) in addition to its normal duty of controlling the glow plugs. The glow plug control module senses faults in the glow plug system or individual glow plugs, and sends the data to the PCM, where it can be read with diagnostic tools.



#38 FOCA

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Posted 12 March 2013 - 09:38 PM

Here you go :P

 

A normal glow plug relay only controls the function of the glow plugs. A glow plug control module is a requirement for emissions regulations. It communicates with the power train control module (PCM) in addition to its normal duty of controlling the glow plugs. The glow plug control module senses faults in the glow plug system or individual glow plugs, and sends the data to the PCM, where it can be read with diagnostic tools.

Clever stuff - so if one glow plug fails the PCM knows which one, but it may send the car into limp home mode

 

On my "antique" all the glow plugs are wired together in series, if one blows the ECU/ OBD scanner does not know which one,

 

but - the engine will start (a bit lumpy/ smokey at 1st) then run good once it warms up - and it does not go into limp home mode, the relay for the glow plugs is probably cheap too - progress....    



#39 Pirategirl

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Posted 12 March 2013 - 09:47 PM

Mine is extremely smokey at the moment, and has been in limp home mode since last Friday........  Can't wait to get it in the garage - certainly does not feel like a sport at the moment!



#40 Mike77

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Posted 12 March 2013 - 10:46 PM

A sport isn't a sport on a focus diesel lol, glad its getting sorted, might be wise to prepare yourself for a change of glowplugs too once the new part goes on, but fingers crossed they will be ok for a while to let your purse fill up again haha. All these parts are common to go wrong on the focus, glowplugs, related relays, modules and the wiring loom related to the above. Keep us informed of how it goes.

#41 Loz Cheung

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Posted 12 March 2013 - 10:58 PM

Glad to hear you've made progress!
Done well to be driving in limp mode all this time :P

#42 Pirategirl

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Posted 12 March 2013 - 11:50 PM

Hmmmm Mike77 - not sure now others drive their 'diesel Sport' but mine was very responsive ;)  so are you saying that I am now in for a whole host of problems now that the glow plug module has gone?  Really hope not, have had it less than a year and have been really happy with it up till now.

 

Had a 2.3 Saab 93 before this and although the focus was not as powerful it was much more responsive...



#43 Pirategirl

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Posted 12 March 2013 - 11:55 PM

Loz Cheung - not happy driving in limp mode :(   Worry about damaging, but have been told by two garages that as long as I keep it to between 1.5 snd 2,000 rev's that I should be ok.  The main problem I could encounter is that the car just won't start.

 

Roll on Thursday night when I take it into the garage!



#44 Stoney871

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Posted 13 March 2013 - 12:19 AM

Hmmmm Mike77 - not sure now others drive their 'diesel Sport' but mine was very responsive ;)



Mines pretty responsive too, them again I do drive it hard.

#45 The Bear

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Posted 13 March 2013 - 01:17 AM

Glow plugs are only there to help with cold starting. The piston compresses the air in the cylinder past the flashpoint of the diesel, the diesel's then injected and ignites. The glow plugs are a heater element that helps with the heating of the air.

 

If you have no glow plugs working the only issue I can see is it not starting.

 

If you can start it then I wouldn't be concerned about running it.

 

UNLESS (as I think another member mentioned) the glow plugs in your car do more than just help with cold start. This is a pure guess but if they help with burning unburned fuel (which I think was what was mentioned before) and they're not currently working that could be where your performance issues are coming from as the various sensors in your car may be receiving dodgy readings and inputting the wrong air/fuel mixture.

 

Can anyone confirm if my guess is right or wrong?

 

Either way I can't see any ''damage'' being done other than if it's in limp mode it may be a bit dangerous from a lack of acceleration point of view.

 

HTH



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