Author Topic: 2011 i30 diesel engine miss at around 1500rpm.  (Read 641 times)

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  • Posts: 2
  • au Australia
    Queensland
2011 i30 diesel engine miss at around 1500rpm.
« September 13, 2021, 15:18:53 »
Recently purchased a 2011 i30 auto wagon.  Great car but develops a miss at around 1500rpm. Usually when cold mabe the first 5 to 10klms of driving. After that it's fine. Any ideas? Is this a common problem? Thanks. Rick.


  • 2011 i30 diesel wagon

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  • Posts: 60
  • au Australia
    Melbourne
Re: 2011 i30 diesel engine miss at around 1500rpm.
« Reply #1 : September 13, 2021, 19:32:31 »
I have a 2010 version of the same car and when mine is cold I can have a slightly rough idle but never notice any roughness once driving and certainly once warm it runs smooth but I also always warm the car for at least 5 minutes from cold so maybe I would get the same result as you if I drove it straight away after starting.

As long as it runs ok when warm I don't think it's anything to worry about but you could run some injector cleaner through which may help.
  • 2010 FD WAGON ,DIESEL 1.6, AUTO, SKY BLUE

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  • Author
  • Posts: 2
  • au Australia
    Queensland
Re: 2011 i30 diesel engine miss at around 1500rpm.
« Reply #2 : September 14, 2021, 03:14:20 »
Thanks. Hopefully someone who has a similar problem will have a solution. Local hyundai dealer thinks it could be injectors but to me if it was injectors wouldn't it have the miss at all rpm?
  • 2011 i30 diesel wagon

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  • Posts: 349
  • gb United Kingdom
    East Midlands
Re: 2011 i30 diesel engine miss at around 1500rpm.
« Reply #3 : September 14, 2021, 05:59:07 »
It could be the glow plugs. One or more may have failed so it's more hesitant to start from cold and runs unevenly at first, but it's fine once there's a bit of heat in the cylinders. The engine has done 225,000 miles and still has the original glow-plugs and injectors. I'm reluctant to change the plugs due to the risk of them snapping off and/or chewing up the cylinder head threads. It's never failed to start after a few extra seconds of cranking.
  • i30 CRD

 


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