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Old 17th June 2016, 23:28   #16
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Default Re: Engine randomly coughs & jerks while driving

I had the same problem long back. My friend got a special tube from Canadian Tire to apply on terminals and voila it vanished. I do not remember the name of tube, but the lube was called dibolic or something (guessing as it happened long back)
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Old 15th June 2017, 18:07   #17
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Default Re: Queries in 'Ask the gurus' section

Desperately need advise.

Hi everyone,
I am Anant my ride is a Honda City Ivtec 2010. It has clocked 1,03,000 km. It has been serviced regularly at the authorized service center.

Coming to the problems:
I have been facing recently at times the car shudders when it is about to roll on, as in when we just start from a stand still. I will call it a shudder not a shiver as it is way stronger in magnitude than a shiver.

The second problem being that whenever I am like cruising at highway speeds like initial three digit speeds or the range from 80 km/hr onward and I depress the clutch and hold it there the RPM of the engine falls to around 450 or 500 rounds per minute.

Once I was on a tour of Uttarakhand and this problem caused the engine to stall a couple of times while on the highway. Luckily I found a service center on the way and the mechanic told me that my Ignition coils were bad he cleaned a fuse like thing found in the coils and for a while the problem vanished.

Now, first of all I need to know that changing the coils would resolve this issue or not. Also, where to get the coils from as my service center is asking a price of 6000 per coil and I need to get 4 coils and obviously that price is too steep. Can I get them online and what brand to buy. Also, if anyone could give me a source to buy from like a website link or something I would be indebted for life. I hope the gurus will save me. Thanks in advance

Regards
Anant

Last edited by aah78 : 16th June 2017 at 01:40. Reason: Post edited for readability & moved. Please read the Annoucements section to familiarise yourself with forum rules.
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Old 19th June 2017, 09:56   #18
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Default Re: Queries in 'Ask the gurus' section

Quote:
Originally Posted by anant5000 View Post
Desperately need advise.

I have been facing recently at times the car shudders when it is about to roll on, as in when we just start from a stand still. I will call it a shudder not a shiver as it is way stronger in magnitude than a shiver.

The second problem being that whenever I am like cruising at highway speeds like initial three digit speeds or the range from 80 km/hr onward and I depress the clutch and hold it there the RPM of the engine falls to around 450 or 500 rounds per minute.
I had faced the same issue in my Honda City 2004 Gxi. It worsens with the car unable to climb a slope from standstill.

Quote:
Now, first of all I need to know that changing the coils would resolve this issue or not.
That a difficult question. But changing the coils solved mine and few of my friends too. All the cars had the fuel pump and spark plugs working fine. You can narrow it down if the ASS asks you to chnage the coils only. Because in my case they started with the fuel pump, and finally arrived at ignition coils.


Quote:
Also, where to get the coils from as my service center is asking a price of 6000 per coil and I need to get 4 coils and obviously that price is too steep. Can I get them online and what brand to buy. Also, if anyone could give me a source to buy from like a website link or something I would be indebted for life. I hope the gurus will save me. Thanks in advance

Regards
Anant
You can get it from aliexpress. I can see 4 coils at a cost of Rs 6000. Please take a picture of your current coils and get in touch with the seller. Since 2014 model Honda city is known by the same name in China they can easily help you. Also ask the seller to ship as a sample invoice showing a lesser amount so that in case the customs ask you to pay duty it will be a small amount.
Regards,
Paul
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Old 13th June 2018, 19:27   #19
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Default Re: Engine randomly coughs & jerks while driving

The starter motor on my City ivtec (2009) went kaput two days back on a late evening. Found a number on Google, and these chaps took the car to their garage which was nearby. As per them, they've done the copper winding for the ignition motor and returned the car today.

Problem is, the check engine light is on and the car now misfires after 3K RPM. I now have to drive it below 3K to take it back home. Needless to say, quite anguished with the ordeal and not sure what to do. Plan to take the car to Pride Honda (Miyapur) first thing in the morning, but authorised service centers don't give me confidence anymore.

If the experts can provide me a few pointers that would be very helpful. Don't want to get fleeced twice
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Old 13th June 2018, 20:01   #20
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Default Re: Engine randomly coughs & jerks while driving

Quote:
Originally Posted by avisidhu View Post
Plan to take the car to Pride Honda (Miyapur) first thing in the morning, but authorised service centers don't give me confidence anymore.
I have the contact number of an Electrician who works at Pride Honda, Miyapur. I will PM you his number. I think he also has an independent garage. Please get in touch with him, if needed.

Last edited by Hickstead : 13th June 2018 at 20:06.
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Old 14th June 2018, 10:42   #21
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Default Re: Engine randomly coughs & jerks while driving

Quote:
Originally Posted by avisidhu View Post
The starter motor on my City ivtec (2009) went kaput two days back on a late evening. Found a number on Google, and these chaps took the car to their garage which was nearby. As per them, they've done the copper winding for the ignition motor and returned the car today.

Problem is, the check engine light is on and the car now misfires after 3K RPM. I now have to drive it below 3K to take it back home. Needless to say, quite anguished with the ordeal and not sure what to do. Plan to take the car to Pride Honda (Miyapur) first thing in the morning, but authorised service centers don't give me confidence anymore.

If the experts can provide me a few pointers that would be very helpful. Don't want to get fleeced twice
First of all the starter motor has nothing to do with engine performance. As its name signifies it is used just for starting - rotating the engine till it fires.

If possible check the ECU for error codes and attend to that. If it is fine then

. Normally misfire and sputtering point to fuel starvation.
. Misfiring especially at higher RPM is due to retarded engine timing. At times it is due to excessive carbon deposits in the cylinder head, which will glow and preignite the fuel before the spark plug does.

Get the following checked
. Fuel line for dirt and kinks.
. Engine timing using a timing light

If both are fine then
. Clean Injectors
. Check the throttle body for carbon deposits - clean if required.
. Take the car out on a relatively uncluttered highway and run the car at around 90-100 km/h for 100km. That should burn off most of the carbon deposits.
. If the problem still persists, try engine cleaner additive with fuel.

Last edited by Aroy : 14th June 2018 at 10:44.
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Old 14th June 2018, 11:33   #22
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Default Re: Engine randomly coughs & jerks while driving

Thanks a ton for the replies and messages guys. Hopefully have a few references through the process which will help me in future!

Quote:
Originally Posted by Aroy View Post
First of all the starter motor has nothing to do with engine performance. As its name signifies it is used just for starting - rotating the engine till it fires.

If possible check the ECU for error codes and attend to that. If it is fine then
....
Your diagnosis is spot on and thankfully didn't have to go beyond the first stage A faulty IAT sensor was the culprit, and just had to be plugged back securely. The error code went away and the jerkiness has disappeared! So all good for now.

One again, a big thanks for all the PMs and suggestions, goes to show why this forum is worth its weight in gold !
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