[SS-Traveller]

Originally Posted by nfsfreak

...cost to replace it, if cannot be serviced?

Since you mention the engine is just noisy and not vibrating heavily when driving, I don't think it's a completely failed injector - you wouldn't manage to drive the vehicle on 2 cylinders for any substantial distance, what with the massive vibrations building up in the 3-cylinder engine. Do get an independent diesel injection specialist (maybe a Bosch centre) to check this out. With the Accent CRDi out of production for some time, Hyundai are tending not to have parts in stock, and in any case their charges are astronomical in comparison to FNGs. An injector was quoted to me at 30+k at HMIL's own service centre (HMP Delhi) while it cost less than 10k INR with my regular spares shop.

I think you may have one or more partially blocked injector(s), which can be serviced on an injector service bench, and not require replacement. As suggested, do try out a dosage of 2ml/litre of System-D for 50-100km before opening up everything, and see if the sound level goes down.

The ownership report of my Accent Viva CRDi is here.

[nfsfreak]

Thanks for the suggestions guys.

Originally Posted by alstonvaz

NFSFreak, take it to a station where they clean the CRDI injectors and ask them to clean only the third injector ( Clean in the sense, replace the filter inside the injector and check the flow) this should cost you max 2k.

If you think this has done you good, then get the first 2 injectors cleaned too, it will help.

Thanks alstonvaz. I have a contact in Salem for injector service. Let me try this.

Originally Posted by oxyzen

Not always the ECU can detect a faulty injector.
Absence of MEL light does not prove the injector is not faulty.

You should try to drive the car with changed injector (which your mechanic did) and see if there is any improvement in performance.

Thanks oxyzen. Tried it yesterday and the engine sound definitely reduced. Also, engine response felt better with replaced injector (drove for a short distance).

Originally Posted by SS-Traveller

Since you mention the engine is just noisy and not vibrating heavily when driving, I don't think it's a completely failed injector - you wouldn't manage to drive the vehicle on 2 cylinders for any substantial distance, what with the massive vibrations building up in the 3-cylinder engine. .....

Yes apart from engine noise and just slight reduction in performance, everything else is fine. So, I think just servicing injector might work. If not, then like Anushman pointed out (in his Elantra CRDi thread) could be problem with engine mounting. would check on that lines as well.

Originally Posted by narayanang76

NFSFREAK: You can try out System D (for Diesel), available at Bharat Petroleum bunks. System G is for petrol - FYI

Originally Posted by SS-Traveller

I think you may have one or more partially blocked injector(s), which can be serviced on an injector service bench, and not require replacement. As suggested, do try out a dosage of 2ml/litre of System-D for 50-100km before opening up everything, and see if the sound level goes down.

Thanks for the info narayanang76 & SS-Traveller. I will try System D.
Few clarifications reg dosage (just to be sure): if diesel in tank is 20L, should I directly add 40ml of system D directly in Tank?
Once added, is there any indication which shows its working (like excessive smoke etc, as System D helps cleaning engine residues). Pardon my ignorance on this, I'm completely a newbie on technicals

Originally Posted by IQBAL VEERJI

Yes ,Yes pls go to Hyundai S .S. if you got plenty of money to throw, these H.S.S. are fleecers .
They told me same about injector failure in my CRDI, and told me that Injectors cost is 21000/- each.
Iwent to my local F.I.P. SERVICING mechanic he openend up the F.I.P. and replaced all seals and serviced the same ,and every thing was normal, charged me 1200/-.I used the car for about 33000 ks before selling it off.

Originally Posted by SirAlec

if i am not wrong, Hyundai crdi injectors are about 18k each.

PS: Do you have kabadi like we have in Ahmedabad. The one that buys totaled cars from insurance companies in lot. Its the best bet to source parts

Iqbal Veerji/sirAlec, The injectors are costly. Thats why I dont want to get it replaced in H.A.S.S
@SirAlec, There is no place like the one you pointed out in Ahmedabad but my mechanic can source it from somewhere (Bangalore/Chennai) at a reasonable price, if not cheap. But lets see if replacement is necessary. As others pointed out, I just hope that only cleaning the injectors is required.

[SirAlec]

Originally Posted by nfsfreak

@SirAlec, There is no place like the one you pointed out in Ahmedabad but my mechanic can source it from somewhere (Bangalore/Chennai) at a reasonable price, if not cheap. But lets see if replacement is necessary. As others pointed out, I just hope that only cleaning the injectors is required.

Just to let you know cleaning injector is not that expensive.

[narayanang76]

Originally Posted by nfsfreak

Thanks for the suggestions guys.


Thanks for the info narayanang76 & SS-Traveller. I will try System D.
Few clarifications reg dosage (just to be sure): if diesel in tank is 20L, should I directly add 40ml of system D directly in Tank?
Once added, is there any indication which shows its working (like excessive smoke etc, as System D helps cleaning engine residues). Pardon my ignorance on this, I'm completely a newbie on technicals

Please follow the link about System G / System D. http://www.team-bhp.com/forum/techni...es-thread.html

Dozage should be based on the fuel in the fuel tank, in my opinion.

Cheers
narayanang76

[archat68]

IMO injectors can't be just swapped and made to work (what your mechanic did). Every piezeoelectric injectors used in the modern CRDi engines have a unique code on it which represents its characteristics like injection volume etc.(every batch of injector even from the same manufacturer differs). While changing the injector you need to "feed" that code into the ECU - only then the ECU will work with the new injector. No small service centre can do this.

So, get it checked in a big service centre with the proper scan tool. Most probably your injector is blocked or dirty. Check the make of the injector and get it cleaned by their service centre - do not do it from smaller service centres - you need specialised tools to clean and check the performance after cleaning.

[IQBAL VEERJI]

Originally Posted by nfsfreak

Thanks for the suggestions guys.



Thanks alstonvaz. I have a contact in Salem for injector service. Let me try this.




Thanks oxyzen. Tried it yesterday and the engine sound definitely reduced. Also, engine response felt better with replaced injector (drove for a short distance).




Yes apart from engine noise and just slight reduction in performance, everything else is fine. So, I think just servicing injector might work. If not, then like Anushman pointed out (in his Elantra CRDi thread) could be problem with engine mounting. would check on that lines as well.





Thanks for the info narayanang76 & SS-Traveller. I will try System D.
Few clarifications reg dosage (just to be sure): if diesel in tank is 20L, should I directly add 40ml of system D directly in Tank?
Once added, is there any indication which shows its working (like excessive smoke etc, as System D helps cleaning engine residues). Pardon my ignorance on this, I'm completely a newbie on technicals







Iqbal Veerji/sirAlec, The injectors are costly. Thats why I dont want to get it replaced in H.A.S.S
@SirAlec, There is no place like the one you pointed out in Ahmedabad but my mechanic can source it from somewhere (Bangalore/Chennai) at a reasonable price, if not cheap. But lets see if replacement is necessary. As others pointed out, I just hope that only cleaning the injectors is required.

At least during my ownership days I have never came across any one replacing those Expensive items.
In all cases it is rectified by cleaning them sincerly by the service guys.Local MICO A.S.S. willdo a best job , better then these jokers at H.A.S.S.

[SS-Traveller]

Originally Posted by archat68

IMO injectors can't be just swapped and made to work...

They can be in the Accent CRDi. It came in BS2 specs till June 2005 IIRC (the first common rail diesel engine to be launched in any passenger car in India), and if nfsfreak's car is BS2, injectors are not coded to the ECM individually. Mine was a December 2004 model (Viva CRDi), and the electronics were not that complicated as in a BS3 common-rail engine.

[nfsfreak]

Visited 'Bangalore Auto Diesel Works' in Salem (BOSCH/MICO) for injector cleaning yesterday. Specialists in Common Rail Systems (CRS).

Charged around Rs 1300 per injector, for servicing.

Cleaned all three injectors. Total hit on my wallet: Rs 4100

Removed the injectors with the help of an outside mechanic and handed the injectors to the workshop.

(They dont have mechanics to remove injectors from the car and hence you have to find some mechanic outside to remove the injectors. You have to handover only the injectors to them.)


Took around 3 hours for the service. They told me that the third injector nozzle was bit loose which could be the reason for reduction in performance and the excess noise from engine. They had corrected it.
Also, They gave me power delivery readings from each injector.
It was about 3 cc more than normal in second injector (around 58. 55 is considered as normal). First and third injector were around 50.

Fitted back the injectors and could notice that suddenly the engine is more refined (compared to last few 1000 kms)

Drove back to Bangalore today.The engine noise is very much reduced and car feels more responsive now. All is well so far

Thanks everyone for your inputs. Certainly, it is because of your inputs I was confident about this injector cleaning.

Overall, I'm happy with their service. PM me if anyone wants details about the company.

Note: Since I wanted to check the effect of injector cleaning, haven't tried System-D yet. I would check it in my next long drive.

Originally Posted by archat68

IMO injectors can't be just swapped and made to work (what your mechanic did). Every piezeoelectric injectors used in the modern CRDi engines have a unique code on it which represents its characteristics like injection volume etc.

Originally Posted by SS-Traveller

They can be in the Accent CRDi. It came in BS2 specs .... the electronics were not that complicated as in a BS3 common-rail engine.

Yes, I think SS-Traveller is right. Mine is also a BS2 (2004 model) and my mechanic was able to test the engine with swapped injectors.