Alfa Romeo Forum banner

1 - 20 of 27 Posts

·
Registered
Joined
·
28 Posts
Discussion Starter #1
Having just had the original injectors reconditioned after diagnostic showed high injector readings am finding the car continues to have a rough idle particularly when cold, white smoke when started in mornings and now a juddering at low rpm when applying gentle accelerator, seems to stop juddering when applying more throttle . Have the car booked in at dealership in 2 weeks and thought in the meantime to strip EGR valve and clean thoroughly (no change), in process of cleaning MAP sensor and going to give the MAF sensor a clean too..... has anyone had similar problems and managed to get resolved??

Oh and is there a fuel filter in a Brera 2.4 jtdm 20v?? both the motor factors and local Alfa dealership had advised that there is no fuel filter in this model.... but am sure i can see one at the back of the engine bay!!!

Many thanks for reading ?
 

·
Registered
Joined
·
1,009 Posts
Having just had the original injectors reconditioned after diagnostic showed high injector readings am finding the car continues to have a rough idle particularly when cold, white smoke when started in mornings and now a juddering at low rpm when applying gentle accelerator, seems to stop juddering when applying more throttle . Have the car booked in at dealership in 2 weeks and thought in the meantime to strip EGR valve and clean thoroughly (no change), in process of cleaning MAP sensor and going to give the MAF sensor a clean too..... has anyone had similar problems and managed to get resolved??

Oh and is there a fuel filter in a Brera 2.4 jtdm 20v?? both the motor factors and local Alfa dealership had advised that there is no fuel filter in this model.... but am sure i can see one at the back of the engine bay!!!

Many thanks for reading ?
The is 100% a fuel filter on these cars. I'd be willing to bet my life savings on the fact that every fuel powered car in the last 25 years has had a fuel filter. Seriously strange that anyone would say otherwise! Specially a main dealer.

Here is the cheapest one I have found for our cars. Mahle being a OEM supplier to plenty of car companies hints that they are a good quality part.
Mahle Fuel Filter KL567 (Alfa Romeo 159, Fiat Bravo) single

As for the starting issue and rough running has this been something that has just come on since having the refurbished injectors?
 

·
Registered
Joined
·
28 Posts
Discussion Starter #4
Thanks for your replies guys, the rough idle and intermittent smoke has been there before the injectors were reconditioned, mainly whitish smoke first thing in morning for around 3 seconds and intermittently i would notice a omissions smell and them notice the appearence of smoke behind the car and the average mpg wpuld drop to arpund 24 mpg from 31 mpg!! rough idle has been present for a while and the juddery acceleration at low rpm has started recently prompting a visit to the dealership and recon of all 5 injectors based on the quite high injector readings.

Thanks for both confirming too that there is indeed a fuel filter.... found myself looking at the posts on this fab site describing how to change the filter and looking at the filter at the rear of the engine bay only to be told by my local motor factors and shockingly the main Alfa dealership that there was no fuel filter for this particular model!!! will be popping into Halfords to buy myself one today and see if fitting a new one sorts the juddery acceleration and idle probs....

Am questioning now whether it was such a good idea booking my car into the main dealership to investigate the rough idle etc if they dont even know theres a fuel filter fitted.... i may cancel haha ?
 

·
Registered
Joined
·
28 Posts
Discussion Starter #5
Was also advised that because original injectors were reconditioned and placed back into their original cylinders, new IMA codes were not needed.... car doesnt appear to be any better since recon neither does it appear to be any worse so possibly original fault is elsewhere ?
 

·
Registered
Joined
·
4,779 Posts
The Fuel filter is the big silver cylinder on the bulkheard (slap bang int he centre with (IIRC) three black tubes coming out the top), it is supposed to be changed every service. If this main dealer is the one carrying out yours service and they don't know it has a fuel filter I would be very concerned!

It's highly likely your manifold is caked in soot (check out the condition of the MAP sensor when you clean it, will mirror the inside of your manifold). Try and spray EGR cleaner (it's designed to go through the engine) through the holes for the EGR and MAP into the manifold to help loosensome of the deposits.
There is also an engine update for the 2.4 ECU, which is related to rough idle (but not white smoke!).
Other area to look at is the DPF. They have a finite life and can gradually get clogged with time (the usual regen won't sort it). You can get some stuff that goes in the fuel tank from halfords etc, or Wynns do a product you spray directly in the DPF and force a regen!
 

·
Registered
Joined
·
28 Posts
Discussion Starter #7
It was the main dealership service centre who assured me there was no fuel filter when i phoned to buy one..... the same service centre where my car is booked into for a diagnostic etc on the rough idle etc, am having second thoughts now ? is it only the main dealership who can do an update on the ECU ??

Will be heading over to halfords today and buy a replacement fuel filter and see if i can get some of the Wynns DPF regeneration additive too......

I did take out the MAP sensor last night and found it to be very clogged up with gunk..... cleaned it with some electrical cleaner and although it may be a little early to say the car this morning on the drive to work didnt seem to have any juddering at low rpm acceleration!!! the white smoke on start up and rough idle / diesel clatter are still there ?
 

·
Registered
Joined
·
28 Posts
Discussion Starter #8
Another thought is to take the car back to the garage who fitted the injectors and ask them to double check the injectors are bedded in properly and maybe get them to check the injector pump timing....

Many thanks for your comments.... much appreciated ?
 

·
Registered
Joined
·
103 Posts
Another thought is to take the car back to the garage who fitted the injectors and ask them to double check the injectors are bedded in properly and maybe get them to check the injector pump timing....

Many thanks for your comments.... much appreciated ?
Do a search for swirl flaps and all your questions will be answered, you can either have them removed (a bit pricey) or just disable them.
Avoid the main dealer, they don't know what they're looking at, go to a specialist, Auto Lusso and Alfa workshop are the most respected if you're down south.
 

·
Registered
Joined
·
1,009 Posts
Another thought is to take the car back to the garage who fitted the injectors and ask them to double check the injectors are bedded in properly and maybe get them to check the injector pump timing....

Many thanks for your comments.... much appreciated ?
These injectors are timed by the ECU the pump timing doesn't matter so that can't be the issue.

It does sound like the remaining issue you have is clogged intake manifold and swirl flaps. If you lock them open and then try a cold start with them open you should notice a difference. I know I did.
 

·
Registered
Joined
·
28 Posts
Discussion Starter #11
Going to change the 'non existent fuel filter' with a new 'non existent fuel filter' from halfords and see what that does and can only benefit the fuelling ?....

Will definately have a go at fixing the swirl flaps open, havent a clue where to start or where to look for these at the mo.... can anyone point me in the direction on how i can tackle the swirl flaps??
 

·
Identity Confirmed, Authorised Trader
Joined
·
7,045 Posts
Going to change the 'non existent fuel filter' with a new 'non existent fuel filter' from halfords and see what that does and can only benefit the fuelling ?....

Will definately have a go at fixing the swirl flaps open, havent a clue where to start or where to look for these at the mo.... can anyone point me in the direction on how i can tackle the swirl flaps??
How can an Alfa dealer tell you there is no fuel filter, they don't stand a chance

Swirl flaps are a problem on the 2.4 and there is no easy fix, to fix them the cam belt, high pressure fuel pump and bracket the pump is bolted to needs to come off, this is not a DIY job. We do them all the time

There also other things that will need to be checked

Ned
 

·
Registered
Joined
·
28 Posts
Discussion Starter #13
Thanks Ned, beats me how the dealership doesn't acknowledge that the 2.4jtdm Brera has a fuel filter.... especially as i pointed out i cold see the filter at the rear of the engine bay.

Not long had the belts done on the car and having just forked out a mint on the injectors etc am not relishing the expense on another big repair bill.... at least until the bank account has time to settle. Is there a temp fix i can do in the meantime even if it is purely to make sure there is an issue with the swirl flaps before diving straight in?? Out of interest would you know how much it would be to fix the swirl flaps if there was indeed an issue with them??

Many thanks. Steve
 

·
Registered
Joined
·
203 Posts
My 1.9 still has them.

Looking forward to remove or disable them.

All I know is that if you do have the bad luck of them getting into the cylinder, the motor is most likely gone.

Sent from my Elephone P7000 using Tapatalk
 

·
Registered
Joined
·
28 Posts
Discussion Starter #15
Going to definately have them disabled at least for now until I get them removed at same time as belts etc... just need to find a local garage who can do them.....
 

·
Registered
Joined
·
28 Posts
Discussion Starter #17
Will ask around a few garages (not our local dealership tho ?) and post if there's any who can do a temp job / price etc pre belt change.....
 

·
Registered
Joined
·
28 Posts
Discussion Starter #19
Got the new fuel filter so will give it a go and see if that makes any difference, are they self bleeding units???

Also noted the injectors and manifold were replaced roughly when the car was 2 years old and looks like a recall for some reason as there was no charge..... but still worth the garage taking a look to see what condition the swirl flaps are in im sure!!!
 

·
Registered
Joined
·
351 Posts
Got the new fuel filter so will give it a go and see if that makes any difference, are they self bleeding units???

Also noted the injectors and manifold were replaced roughly when the car was 2 years old and looks like a recall for some reason as there was no charge..... but still worth the garage taking a look to see what condition the swirl flaps are in im sure!!!
Where abouts are you mate? I believe the fuel filter self primes, can't remember ever having any issues when changing one
 
1 - 20 of 27 Posts
Top