Sputtering exhaust note - Team-BHP

etchemkay · 17th April 2007, 20:56

Hi all,
Since a few months, I've been noticing a sputtering in the exhaust note of my Palio 1.2NV ELX. When idling, the exhaust sputters out intermittently (every couple of seconds) - you can hear that and also "feel" the if you put your palm against the exhaust (like the exhaust of the Enfield/Bullet bikes). I've asked the technicians at Jay-Vijay Motors, Pune about the same and they all said that this is normal.
Although I'd like to take their word for it since I don't know zilch about engines, it just doesn't "feel" right.
Has anyone else had the same problem/question? Know any solutions ?
I fill Speed or IOC Extra Premium from reputed pumps only. I rarely drive in race mode and my car has clocked close to 7000kms till date. My second service is coming up soon and I'd like to point out the same to the service center with any information I gather here.
In the meanwhile, if anyone has any opinions/suggestions regarding the same, I would like to hear them out. All help appreciated.

- etchemkay

paras211 · 18th April 2007, 01:28

wats your rpm idle
wow palio s got a race mode i thought only expencive cars had that

moralfibre · 18th April 2007, 07:33

Does this happen during cold start occasions? I suspect adulterated fuel.

wolfinstein · 18th April 2007, 09:33

Are you noticing a Surge and drop in the RPM needle also..!

Get the Fuel Filter changed,Air filter cleaned,Spark plugs re adjusted and Throttle cleaned..at your next service..!

This is pretty normal, happens with Bad Fuel and Dirty Throttle

etchemkay · 18th April 2007, 10:20

Quote:

Originally Posted by paras211

wats your rpm idle

It's the normal idle RPM rate - 1000.

etchemkay · 18th April 2007, 10:27

Quote:

Originally Posted by moralfibre

Does this happen during cold start occasions? I suspect adulterated fuel.

No, this condition does not pertain only to cold-start situations. It is ever-present. I doubt if this is a result of adulterated fuel coz I've always (apart from a couple of desperate times) filled from reputed petrol pumps - RTO-Speed, IOC COCOs.

Quote:

Originally Posted by wolfinstein

Are you noticing a Surge and drop in the RPM needle also..!

No, the RPM needle remains constant at 900-1000. Also, even at 2000rpm (I haven't checked beyond that), the sputtering remains. I've noticed it, at times, in gear also.

Quote:

Originally Posted by wolfinstein

Get the Fuel Filter changed,Air filter cleaned,Spark plugs re adjusted and Throttle cleaned..at your next service..!
This is pretty normal, happens with Bad Fuel and Dirty Throttle

I think I'll get these checked even before my next service. Or maybe I'll just prepone my service schedule.

Jaggu · 18th April 2007, 10:29

get your injectors also checked along with other things mentioned above, try using iFTEX injector cleaner along with your petrol and see

theMAG · 18th April 2007, 11:06

Get the ignition coil and the distributor checked. Also the injectors and the fuel filter.

n_aditya · 18th April 2007, 11:12

Are you running a custom exhaust system? I have a custom free flow exhaust on my esteem and when the rev's drop slowly (when i am coasting to a stop) i can hear the sputter (? there must be another word for this)... Love this sound.. am not complaining. I am sure my injector are clean as i use an injector cleaner regularly.

etchemkay · 18th April 2007, 11:23

Quote:

Originally Posted by n_aditya

Are you running a custom exhaust system?

Nope .. my car's all stock for now.

etchemkay · 18th April 2007, 11:29

Suggestions I've got till now -
- check ignition coil and the distributor
- check injectors
- change fuel filter changed
- clean air filter
- re-adjust spark plugs
- clean throttle
.. anything else ?
I'll be handing over this list to the service station engineers sometime this week. Will keep this thread updated with the progress on the problem.

Thanks everyone.

wolfinstein · 18th April 2007, 17:11

Try to first isolate the cause :

Ask the Mech to Remove the Outlet from the Fuel Filter and then check the quality of fuel-If its Black, Then You can proceed to change the Filter and Get the Injectors Checked.

First Inspect the Throttle,It should be Jet Black with Carbon and all, Then Clean it-Clean Air Filter-If the Throttle appears with slight carbon, Then just spray clean it.

With Spark Plugs, Re-adjustement-Ensure its done properly-Too much or Too less can complicate things.

Lastly, Be present when this work is being done, Try for a Sunday or Your Holiday-Its not a much time consuming work, You should be through in 1 and Half Hours,Provided you reach early and Mech does not run away..!

Shan2nu · 18th April 2007, 17:33

Sometimes, even if your exhaust pipe has a leak somewhere, you can hear the fluttering sound at certain rpm points.

My car is running without it's end muffler and i can hear the fluttering sound at around 1000-1200rpm. Even when you play loud music in your house, you sometimes notice the windows vibrating only when a certain set of notes are played.

Shan2nu

n_aditya · 18th April 2007, 18:21

Quote:

Originally Posted by Shan2nu

My car is running without it's end muffler and i can hear the fluttering sound at around 1000-1200rpm.

Whoa!!!

I have a 4x1 header with a straight pipe and SS muffler. And boy is she LOUD!!! Mostly i slip into neutral when i spot a cop.

Imagine a ride with no end can. Thats somethin like a sportscar pulling away real quick... (i've experienced it in one so i know how loud it can be...!!!). Dont u get pulled over by cops shan?

Shan2nu · 18th April 2007, 19:06

Quote:

Imagine a ride with no end can. Thats somethin like a sportscar pulling away real quick... (i've experienced it in one so i know how loud it can be...!!!). Dont u get pulled over by cops shan?

It's loud only at higher rpms, while cruising, you get that mild soothing exhaust note.

I've run my car without any muffler at all (which caused the brakes to fail) and even then, it didn't seem to affect the cops. Moreover, i do all my high rpm drivng outside city limits (all highways are within 2 kms from my house).

PS : Why do you think i prefer keeping the Vtec in Hubli. LOL

Shan2nu

17th April 2007, 20:56	#1 (permalink)
etchemkay BHPian Join Date: Nov 2006 Location: Pune Posts: 74	Sputtering exhaust note Hi all, Since a few months, I've been noticing a sputtering in the exhaust note of my Palio 1.2NV ELX. When idling, the exhaust sputters out intermittently (every couple of seconds) - you can hear that and also "feel" the if you put your palm against the exhaust (like the exhaust of the Enfield/Bullet bikes). I've asked the technicians at Jay-Vijay Motors, Pune about the same and they all said that this is normal. Although I'd like to take their word for it since I don't know zilch about engines, it just doesn't "feel" right. Has anyone else had the same problem/question? Know any solutions ? I fill Speed or IOC Extra Premium from reputed pumps only. I rarely drive in race mode and my car has clocked close to 7000kms till date. My second service is coming up soon and I'd like to point out the same to the service center with any information I gather here. In the meanwhile, if anyone has any opinions/suggestions regarding the same, I would like to hear them out. All help appreciated. - etchemkay __________________ 2006 Palio 1.2 NV ELX Moon-Mist-Grey - codename "Gracy"

18th April 2007, 01:28	#2 (permalink)
paras211 BHPian Join Date: Nov 2006 Location: mumbai Posts: 275 View My Garage	wats your rpm idle wow palio s got a race mode i thought only expencive cars had that __________________ *Oh, people can come up with statistics to prove anything. 14% of people know that.” -Homer Simpson*

18th April 2007, 07:33	#3 (permalink)
moralfibre Senior - BHPian Join Date: Dec 2004 Location: Back to Pune :-) Posts: 3,237 View My Garage	Does this happen during cold start occasions? I suspect adulterated fuel. __________________ "As long as there are short, balding, middle-aged men, there will always be a market for the Porsche 911." - A BMW Owner. :)

18th April 2007, 09:33	#4 (permalink)
wolfinstein BHPian Join Date: Feb 2006 Location: New Delhi Posts: 951	Are you noticing a Surge and drop in the RPM needle also..! Get the Fuel Filter changed,Air filter cleaned,Spark plugs re adjusted and Throttle cleaned..at your next service..! This is pretty normal, happens with Bad Fuel and Dirty Throttle __________________ " When was the last time, You did something for the first time "

18th April 2007, 10:29	#7 (permalink)
Jaggu Team-BHP Support Join Date: May 2004 Location: Bangalore Posts: 3,892	get your injectors also checked along with other things mentioned above, try using iFTEX injector cleaner along with your petrol and see __________________ The strength to change what I can, the inability to accept what I can't, and the incapacity to tell the difference. -Calvin

18th April 2007, 11:06	#8 (permalink)
theMAG Team-BHP Support Join Date: May 2006 Location: Bengalooru Posts: 3,740 View My Garage	Get the ignition coil and the distributor checked. Also the injectors and the fuel filter. __________________ If you lose your temper, you’ve lost the argument

18th April 2007, 11:12	#9 (permalink)
n_aditya Senior - BHPian Join Date: Oct 2005 Location: Currently at Chennai. Originally from Blore. Posts: 1,713	Are you running a custom exhaust system? I have a custom free flow exhaust on my esteem and when the rev's drop slowly (when i am coasting to a stop) i can hear the sputter (? there must be another word for this)... Love this sound.. am not complaining. I am sure my injector are clean as i use an injector cleaner regularly. __________________ RIP Tootie !!! Missing you terribly. Last edited by n_aditya : 18th April 2007 at 11:13.

18th April 2007, 11:29	#11 (permalink)
etchemkay BHPian Join Date: Nov 2006 Location: Pune Posts: 74	Suggestions I've got till now - - check ignition coil and the distributor - check injectors - change fuel filter changed - clean air filter - re-adjust spark plugs - clean throttle .. anything else ? I'll be handing over this list to the service station engineers sometime this week. Will keep this thread updated with the progress on the problem. Thanks everyone. __________________ 2006 Palio 1.2 NV ELX Moon-Mist-Grey - codename "Gracy"

18th April 2007, 17:11	#12 (permalink)
wolfinstein BHPian Join Date: Feb 2006 Location: New Delhi Posts: 951	Try to first isolate the cause : Ask the Mech to Remove the Outlet from the Fuel Filter and then check the quality of fuel-If its Black, Then You can proceed to change the Filter and Get the Injectors Checked. First Inspect the Throttle,It should be Jet Black with Carbon and all, Then Clean it-Clean Air Filter-If the Throttle appears with slight carbon, Then just spray clean it. With Spark Plugs, Re-adjustement-Ensure its done properly-Too much or Too less can complicate things. Lastly, Be present when this work is being done, Try for a Sunday or Your Holiday-Its not a much time consuming work, You should be through in 1 and Half Hours,Provided you reach early and Mech does not run away..! __________________ " When was the last time, You did something for the first time "

18th April 2007, 17:33	#13 (permalink)
Shan2nu Distinguished - BHPian Join Date: Feb 2004 Location: Hubli - Karnataka - India Posts: 4,165 View My Garage	Sometimes, even if your exhaust pipe has a leak somewhere, you can hear the fluttering sound at certain rpm points. My car is running without it's end muffler and i can hear the fluttering sound at around 1000-1200rpm. Even when you play loud music in your house, you sometimes notice the windows vibrating only when a certain set of notes are played. Shan2nu __________________ VTEC flyby - youtube.com/watch?v=1AhWJlVRPqE

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Rough idle and exhaust note not smooth - Please help me!	ece2k2	Technical Stuff	22	13th January 2008 00:59
Sputtering Zen !!	nogutsnoglory	Technical Stuff	25	27th October 2006 09:31
A note of things to come	nitroxx	Shifting gears	4	17th March 2005 19:04
A note of thanks.	Tarun	The Indian Car Scene!!	14	31st December 2004 09:23