Jerks above 1500 rpm in Ford ikon

Astleviz · 15th March 2009, 22:22

I need some help with diagnosing a peculiar problem with my ikon before I rush to the ford dealer (who will most probably ask me to replace the fuel pump and some other parts).

When I start my ikon, there are absolutely no issues. The engine fires up on the first crank and idles smoothly as before. I slot it in first and drive off gently, it behaves normally. But when I press the accelerator a little bit more, the car starts jerking. It's as if either fuel supply is not regular or if the ignition timing is not perfect.

Let me clarify, the car doesn't shudder, splutter or misfire. The car doesn't come to a halt. It always starts up with the first crank. If I don't rev the car, the engine doesn't die out. It's just that there's a mild but perceptible jerk when I press the throttle. If I stay below 1500 rpm, there is no jerking, the car behaves normal but after that the jerking starts.

Are there any other issues apart from a fuel pump issue that may be causing this erratic behaviour?

A few points to consider-

1. My car has never run out of fuel, I always tank up between quarter and half tank.

2. The car was serviced recently and has not done more than 600 km after the service so we can rule out clogged air/fuel filter.

3. The car was parked still for about a month while I was away. And the problem didn't start immediately after I came back. I used the car for about 2 weeks and there were absolutely no issues, it was only a couple of days ago when the problem started.

benbsb29 · 15th March 2009, 22:42

I suppose throtle-body cleaning should help solve this. PM Jaggu with a link to this thread, he would defintely have a solution.

wolfinstein · 15th March 2009, 23:13

Check the Throttle.

Remote chance that it can be the Valve clearence that needs adjustment. I was facing a similar issue in My XETA- Adjusting the Clearence solved it.

Shan2nu · 15th March 2009, 23:27

Does this happen all the time or for a short peroid of time (say 30-40secs).

Shan2nu

aaggoswami · 15th March 2009, 23:55

The throttle. Recently this was done in friend's Ikon ( he runs a shop and will fill up from any place ).
Moreover look for injectors also. Clogged injectors can also lead to this, as was the case with the Ikon I have mentioned above.
And we cannot rule out the fuel filter. If you have filled in fuel after servicing, there are chances of the fuel quality being bad.

SirAlec · 15th March 2009, 23:57

check the spark plug. since you already changed the various filters.

Eddy · 15th March 2009, 23:57

I think its the ignition coil thats gone. If that is the case, be prepared to shell out around 6k at an authorised Ford service center.

gr8guzzler · 16th March 2009, 01:24

Fuel is suspect check the fuel filter. If pump was an issue, it would take a few minutes before it starts again (is that happening?)

Astleviz · 16th March 2009, 03:36

benbsb29/wolfinstein:
Will surely get that done.

Shan2nu:
It happens all the time. And the jerking is pretty uniform, it's not sporadic.

SirAlec:
Will get the spark plus changed as well though they were changed during the last service (approx. 600 km ago).

Eddy:
It could be the ignition coil as well, but wouldn't that cause more serious problems? Like starting problems, or the engine shutting down momentarily? I have absolutely no other issues except the continuous jerking after 1500 rpm.

gr8guzzler:
The car starts on the first crank every time, do you think it still may be a fuel pump issue?

mail4loys · 16th March 2009, 07:50

The ignition coil is a known issue with Ikon, check it as it might be the case. I had a similar issue (http://www.team-bhp.com/forum/techni...tml#post884879 ) and i got fixed when i changed my ignition coil. Also, do you see any sudden change in the rpm (fluctuate) when you get jerk ?

headers · 16th March 2009, 07:58

check if your fuel line is not sucking in air somewhere in addition to the above!

genesis · 16th March 2009, 10:48

Most likely the IC valve, the dealership will know the problem. I had it on my ikon multiple times
Usually the clean it out but finally you will have to replace it.

Astleviz · 16th March 2009, 15:40

mail4loys:
there is no fluctuation in the rpm. The jerking happens all the times, with the AC off as well as on.

genesis:
what exactly is this IC valve? and where is it located? I'll bring it up at the service station and get it cleaned as well.

Eddy · 16th March 2009, 15:54

Astleviz, I had a problem with my ikon. But that was when it was idling.

http://www.team-bhp.com/forum/techni...when-idle.html

Yours may or may not be a problem with the ignition coil.

genesis · 16th March 2009, 16:23

@astleviz wrote:
"genesis:
what exactly is this IC valve? and where is it located? I'll bring it up at the service station and get it cleaned as well"

It is in an assembly close to the engine block easily accessible when the hood is opened. Cant describe exactly where, but it is not a major thing to get out and clean.
Pretty well known problem with an ikon, the service center will know exactly where it is (they better!)

15th March 2009, 22:22	#1
Astleviz BHPian Join Date: Apr 2006 Location: Panjim, Goa Posts: 370 Thanked: 174 Times	Jerks above 1500 rpm in Ford ikon I need some help with diagnosing a peculiar problem with my ikon before I rush to the ford dealer (who will most probably ask me to replace the fuel pump and some other parts). When I start my ikon, there are absolutely no issues. The engine fires up on the first crank and idles smoothly as before. I slot it in first and drive off gently, it behaves normally. But when I press the accelerator a little bit more, the car starts jerking. It's as if either fuel supply is not regular or if the ignition timing is not perfect. Let me clarify, the car doesn't shudder, splutter or misfire. The car doesn't come to a halt. It always starts up with the first crank. If I don't rev the car, the engine doesn't die out. It's just that there's a mild but perceptible jerk when I press the throttle. If I stay below 1500 rpm, there is no jerking, the car behaves normal but after that the jerking starts. Are there any other issues apart from a fuel pump issue that may be causing this erratic behaviour? A few points to consider- 1. My car has never run out of fuel, I always tank up between quarter and half tank. 2. The car was serviced recently and has not done more than 600 km after the service so we can rule out clogged air/fuel filter. 3. The car was parked still for about a month while I was away. And the problem didn't start immediately after I came back. I used the car for about 2 weeks and there were absolutely no issues, it was only a couple of days ago when the problem started.
	() Thanks

15th March 2009, 22:42	#2
benbsb29 Team-BHP Support Join Date: Nov 2006 Location: Brisbane Posts: 9,968 Thanked: 13,223 Times View My Garage	I suppose throtle-body cleaning should help solve this. PM Jaggu with a link to this thread, he would defintely have a solution.
	() Thanks

15th March 2009, 23:13	#3
wolfinstein BHPian Join Date: Feb 2006 Location: New Delhi Posts: 994 Thanked: 20 Times	Check the Throttle. Remote chance that it can be the Valve clearence that needs adjustment. I was facing a similar issue in My XETA- Adjusting the Clearence solved it.
	() Thanks

15th March 2009, 23:27	#4
Shan2nu Senior - BHPian Join Date: Feb 2004 Location: Hubli - Karnata Posts: 5,533 Thanked: 125 Times View My Garage	Does this happen all the time or for a short peroid of time (say 30-40secs). Shan2nu
	() Thanks

15th March 2009, 23:55	#5
aaggoswami Senior - BHPian Join Date: May 2007 Location: Vadodara Posts: 4,982 Thanked: 2,931 Times	The throttle. Recently this was done in friend's Ikon ( he runs a shop and will fill up from any place ). Moreover look for injectors also. Clogged injectors can also lead to this, as was the case with the Ikon I have mentioned above. And we cannot rule out the fuel filter. If you have filled in fuel after servicing, there are chances of the fuel quality being bad.
	() Thanks

15th March 2009, 23:57	#6
SirAlec Senior - BHPian Join Date: Sep 2006 Location: zxc Posts: 3,393 Thanked: 726 Times	check the spark plug. since you already changed the various filters.
	() Thanks

15th March 2009, 23:57	#7
Eddy Team-BHP Support Join Date: Apr 2007 Location: Delhi Posts: 9,387 Thanked: 13,301 Times	I think its the ignition coil thats gone. If that is the case, be prepared to shell out around 6k at an authorised Ford service center.
	() Thanks

16th March 2009, 01:24	#8
gr8guzzler BHPian Join Date: Apr 2005 Location: Navi Mumbai Posts: 653 Thanked: 87 Times View My Garage	Fuel is suspect check the fuel filter. If pump was an issue, it would take a few minutes before it starts again (is that happening?)
	() Thanks

16th March 2009, 03:36	#9
Astleviz BHPian Join Date: Apr 2006 Location: Panjim, Goa Posts: 370 Thanked: 174 Times	benbsb29/wolfinstein: Will surely get that done. Shan2nu: It happens all the time. And the jerking is pretty uniform, it's not sporadic. SirAlec: Will get the spark plus changed as well though they were changed during the last service (approx. 600 km ago). Eddy: It could be the ignition coil as well, but wouldn't that cause more serious problems? Like starting problems, or the engine shutting down momentarily? I have absolutely no other issues except the continuous jerking after 1500 rpm. gr8guzzler: The car starts on the first crank every time, do you think it still may be a fuel pump issue? Last edited by Astleviz : 16th March 2009 at 03:39.
	() Thanks

16th March 2009, 07:50	#10
mail4loys BHPian Join Date: Nov 2006 Location: Austin, TX Posts: 378 Thanked: 8 Times View My Garage	The ignition coil is a known issue with Ikon, check it as it might be the case. I had a similar issue (http://www.team-bhp.com/forum/techni...tml#post884879 ) and i got fixed when i changed my ignition coil. Also, do you see any sudden change in the rpm (fluctuate) when you get jerk ? Last edited by mail4loys : 16th March 2009 at 08:05.
	() Thanks

16th March 2009, 07:58	#11
headers Senior - BHPian Join Date: May 2006 Location: Greater Chennai Posts: 4,667 Thanked: 559 Times	check if your fuel line is not sucking in air somewhere in addition to the above!
	() Thanks

16th March 2009, 10:48	#12
genesis BHPian Join Date: Sep 2008 Location: Mumbai Posts: 773 Thanked: 339 Times	Most likely the IC valve, the dealership will know the problem. I had it on my ikon multiple times Usually the clean it out but finally you will have to replace it.
	() Thanks

16th March 2009, 15:40	#13
Astleviz BHPian Join Date: Apr 2006 Location: Panjim, Goa Posts: 370 Thanked: 174 Times	mail4loys: there is no fluctuation in the rpm. The jerking happens all the times, with the AC off as well as on. genesis: what exactly is this IC valve? and where is it located? I'll bring it up at the service station and get it cleaned as well.
	() Thanks

16th March 2009, 15:54	#14
Eddy Team-BHP Support Join Date: Apr 2007 Location: Delhi Posts: 9,387 Thanked: 13,301 Times	Astleviz, I had a problem with my ikon. But that was when it was idling. http://www.team-bhp.com/forum/techni...when-idle.html Yours may or may not be a problem with the ignition coil.
	() Thanks

16th March 2009, 16:23	#15
genesis BHPian Join Date: Sep 2008 Location: Mumbai Posts: 773 Thanked: 339 Times	@astleviz wrote: "genesis: what exactly is this IC valve? and where is it located? I'll bring it up at the service station and get it cleaned as well" It is in an assembly close to the engine block easily accessible when the hood is opened. Cant describe exactly where, but it is not a major thing to get out and clean. Pretty well known problem with an ikon, the service center will know exactly where it is (they better!)
	() Thanks