Register Login
The UK's No.1 Chrysler Owners Forum
Reply
 
Thread Tools
Old 20-06-2013   #1
Join Date: May 2012
Posts: 41
Thanks: 0
Trader Rating: 0
United Kingdom 
1.9 m/j stutter and wosh noise at 1800 rpm

Anyone know what causes this wer, wer, wer noise, or u could say, ka, ka, ka noise and the stuttering/pulling back at the same time between 1600-2000 rpm, (worst on light throttle) ? Lots of noise when lifting off accelerator at just above 2000 rpm, (its an automatic). EGR, MAP, MAF, air filter, boost pressure sensor have been replaced & I have checked all turbo and intercooler pipes I can get to whilst its up on ramps and from underbonnet. DPF looks fine on ECU scan. Found out prevous owner replaced all injectors and the inlet manifold. Thanks (its a 2005 16v 150 JTD auto)
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides


Last edited by 1fiatfan; 20-06-2013 at 23:02.
1fiatfan is offline Reply With Quote Quote 
Old 21-06-2013   #2
Join Date: Apr 2009
Location: Hampshire
Posts: 1,620
Thanks: 57
Trader Rating: 0
United Kingdom 
Re: 1.9 m/j stutter and wosh noise at 1800 rpm

This is right on the edge of my knowledge, so I may be wrong, but I believe that the unique injector code numbers need to be programmed into the ECU when they're changed. It might be worth a look at, to check that the numbers printed on them tally with what's programmed in.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

Doofer is offline Reply With Quote Quote 
Old 21-06-2013   #3
Join Date: May 2012
Posts: 41
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: 1.9 m/j stutter and wosh noise at 1800 rpm

Thx Doofer. I have been to my trusted mechanic today and he thinks the intercooler looks odd. It is a different p/n to the manual intercooler. Can someone else who has a 1.9 auto (Dave) look through your grill and tell me if their intercooler is curved at the bottom where it is sticking out past the condenser ?
Attached Thumbnails
Click image for larger version

Name:	intercooler 002.JPG
Views:	113
Size:	566.5 KB
ID:	119487   Click image for larger version

Name:	intercooler 003.JPG
Views:	107
Size:	638.0 KB
ID:	119488  

Click image for larger version

Name:	intercooler 005.JPG
Views:	111
Size:	605.3 KB
ID:	119489  
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides


Last edited by 1fiatfan; 21-06-2013 at 18:19.
1fiatfan is offline Reply With Quote Quote 
Old 22-06-2013   #4
Join Date: Apr 2009
Location: Hampshire
Posts: 1,620
Thanks: 57
Trader Rating: 0
United Kingdom 
Re: 1.9 m/j stutter and wosh noise at 1800 rpm

I can't look at mine, as it's at its second home at the moment (in the bloody garage again - brake problems this time ). A total nightmare, which is another topic in itself.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

Doofer is offline Reply With Quote Quote 
Old 22-06-2013   #5
Join Date: May 2012
Posts: 41
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: 1.9 m/j stutter and wosh noise at 1800 rpm

Thx again Doofer, but I need someone to look through the lower grill on a 1.9 auto as I have found out via eper that the intercooler is different on the auto, & so is the main radiator, (it has a built in oil cooler for the autobox). The 2.4 auto is also a different intercooler to the 1.9 auto.

re your brakes - perhaps you have the front o/s and rear n/s brakes dragging & wearing prematurely, that appars to be a very common Croma fault.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

1fiatfan is offline Reply With Quote Quote 
Old 22-06-2013   #6
Join Date: Jan 2010
Location: Scotland, Highlands
Posts: 42
Thanks: 2
Trader Rating: 0
United Kingdom 
Re: 1.9 m/j stutter and wosh noise at 1800 rpm

I have a 1.9 16v auto. I will check this evening (i'm at work at the moment) and post later if no else beats me to it.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

stuart543 is offline Reply With Quote Quote 
Old 22-06-2013   #7
Join Date: Jan 2010
Location: Scotland, Highlands
Posts: 42
Thanks: 2
Trader Rating: 0
United Kingdom 
Re: 1.9 m/j stutter and wosh noise at 1800 rpm

If its the lower grill (below the number plate) that we're talking about, mine seems to be completely flat. Hope that helps.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

stuart543 is offline Reply With Quote Quote 
Old 23-06-2013   #8
Join Date: May 2012
Posts: 41
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: 1.9 m/j stutter and wosh noise at 1800 rpm

Thx Stuart, yes the pics are of the bottom of the intercooler taken through the lower front grill. So I have a blown out of shape intrcooler, the mechanic says it could be partically blocked and thats why the bottom has been blown out of shape. I have never heard of this happening before. Can anyone else think of any other reason how/why it could be blown of shape? As I undersand it their is no waste gate of these turbos so how is the excess pressure normally released? I am wondering if this is the reason, or if something else wrong has caused the intercooler to expand, I can only think of turbo back pressure that would be powerful enough to bend an intercooler out of shape.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

1fiatfan is offline Reply With Quote Quote 
Old 23-06-2013   #9
Join Date: Jan 2010
Location: Scotland, Highlands
Posts: 42
Thanks: 2
Trader Rating: 0
United Kingdom 
Re: 1.9 m/j stutter and wosh noise at 1800 rpm

I managed to take a couple of pics this morning - excuse the dead flies.
Attached Thumbnails
Click image for larger version

Name:	23.06.13 011.JPG
Views:	77
Size:	3.49 MB
ID:	119554   Click image for larger version

Name:	23.06.13 012.JPG
Views:	76
Size:	3.75 MB
ID:	119555  

__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

stuart543 is offline Reply With Quote Quote 
Old 23-06-2013   #10
Join Date: Sep 2006
Location: cheshire
Posts: 339
Thanks: 19
Trader Rating: 0
United Kingdom 
Re: 1.9 m/j stutter and wosh noise at 1800 rpm

The Turbochargers are VGT on all of them.Sounds like the injectors need trimming,but it wouldnt run if they did need trimming.Trimming is basically an adjustment for the differences in the injector soliniod coil resistances.I think the injector classification sorts this out in Fiat lingo.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

buster is offline Reply With Quote Quote 
Old 18-07-2013   #11
Join Date: May 2012
Posts: 41
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: 1.9 m/j stutter and wosh noise at 1800 rpm

The Intercooler, which was blown out of shape has been replaced, but its made no difference at all. I cant see anything written on the injectors to see what the code numbers are, there is some writing but its not in English. i can see the code numbers on ECU scan.

After searching the net I got the throttle body removed and cleaned out, still no difference. Due to the air being expelled noise I still think their is a hole in a pipe somewhere, however no holes can be found.

What should I be looking for on ECU scan to best have a hope of finding an odd reading?
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

1fiatfan is offline Reply With Quote Quote 
Old 18-07-2013   #12
Join Date: Apr 2009
Location: Hampshire
Posts: 1,620
Thanks: 57
Trader Rating: 0
United Kingdom 
Re: 1.9 m/j stutter and wosh noise at 1800 rpm

You need to check that the printed numbers on them agree with what's programmed in. Is there any correlation between the printed numbers and what the software says?

If not, let me know before doing anything. I know I've checked mine and they agree. If yours don't then I'll get some photos of mine and details of what the software says, so you can see how it should be formatted etc.
Likes evo-number-one liked this post
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

Doofer is offline Reply With Quote Quote 
Old 20-07-2013   #13
Join Date: May 2012
Posts: 41
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: 1.9 m/j stutter and wosh noise at 1800 rpm

Thank you. OK I have checked the injector details in the ECU and the 4 numbers are the same, but they are not installed in the same order, someone has swapped 2 around.
injector 1 - 78SCBK7AA
2 - 88ALCF5AA
3 - AHIGAKAAA - not sure if the I is a I or a 1, is just a straight line?
4 - 88Z3BF5AA

Now looking at the injector plug codes with a magnifying glass, working from standing in front of the car something is odd. Which is clyinder 1 in the ECU ? Assuming its the 1 on the far right, injector 3 & 4 have been swapped over, I guess I need to swap them back. But before I do I want to be sure this is better than just swapping the codes on them in the ECU.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides


Last edited by 1fiatfan; 20-07-2013 at 09:57.
1fiatfan is offline Reply With Quote Quote 
Old 20-07-2013   #14
Join Date: Sep 2006
Location: cheshire
Posts: 339
Thanks: 19
Trader Rating: 0
United Kingdom 
Re: 1.9 m/j stutter and wosh noise at 1800 rpm

cylinder 1 is the timing end of the engine.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

buster is offline Reply With Quote Quote 
Old 21-07-2013   #15
Join Date: May 2012
Posts: 41
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: 1.9 m/j stutter and wosh noise at 1800 rpm

In that case even every injector is in a different cylinder to what is showing on ECU scan . At least they are the correct injectors, bosch p/n 0445110 243. As the EGR valve has been replaced sometime ago, should the ECU somehow have been informed ? I read somewhere you had to re-set something via ECU scan if you replaced the EGR valve ?

I also have an oil misiting on the top hose that goes to the turbo, its the one directly in front of the oil dipstick finger hole, looking from the front of the car. Does any one else have this misting ? I am almost certain its not normal and proof a pipe is blowing. If I clean it off, within a few days its covered in a light oily residue again.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides


Last edited by 1fiatfan; 21-07-2013 at 10:40. Reason: spelling
1fiatfan is offline Reply With Quote Quote 
Reply
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump
Similar Threads
Thread Thread Starter Forum Replies Last Post
(T) Grinding noise at 2.5k-3k rpm neopickaze Punto (Mk1) 12 02-10-2011 22:32
(G) big noise at high rpm sime Punto (Mk2/2b) 8 17-09-2008 22:23
(T) noise at 2000 rpm k222pjr Barchetta 9 03-01-2008 11:11
(T) Knockin noise at 3k rpm. 1.2 stilo Viciouscycl3 Stilo 18 30-11-2006 00:12
(T) Metallic noise at about 4-5k rpm?? Sando Cinquecento / Seicento 22 15-12-2003 20:51