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Hyundai i40 engine surging in neutral

Sebastian Dangerfield · 2017-09-07 07:12:45

I noticed this morning that when my car is in neutral, the engine gives a noticable shudder (surge probably isnt the right word). Every two seconds, for about half a second the rev counter drops slightly and the engine makes a noise. It seems fine when its in gear. Does anyone know if it sounds like something that needs…

07-09-2017 7:12am

#1

Sebastian Dangerfield

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I noticed this morning that when my car is in neutral, the engine gives a noticable shudder (surge probably isnt the right word). Every two seconds, for about half a second the rev counter drops slightly and the engine makes a noise. It seems fine when its in gear.

Does anyone know if it sounds like something that needs immediate attention? Its booked in for a service in 10 days, but I have two big trips to do before then. According to the service log, its not due to be done again for a month or 4k, so i dont think its that.

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#2 07-09-2017 7:36am

CJhaughey

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Turn the Air con off and see if that stops it.
When the AC compressor cuts in and out it loads the engine.

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#3 07-09-2017 7:37am

Sebastian Dangerfield

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Join Date: December 2012

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CJhaughey wrote: »

Turn the Air con off and see if that stops it.
When the AC compressor cuts in and out it loads the engine.

Seems to have stopped it alright. Thanks

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