[succulant]

I've noticed over the past week or so that my car has a slight 'bouncing' of revs when starting from cold or hunting I think its called. I've experienced this before in a much more aggressive way with a Nissan Almera CRDI I had a few years back which struggled to maintain idling reves when starting in very cold weather. It was eventually traced to a switch on the fuel pump and turned out to be a common and expensive fault at £147+fitting. My i30 is no where near as bad, the rev counter doesn't even move but I can hear the revs bouncing. So far it sorts its self after 5 or 6 seconds and I'm not too concerned but I wondered if anyone else had experienced this? 

[Phil №❶]

Not ours, but they're both autos. 5-6 seconds wouldn't concern me at all. When you consider, from rest, what changes are happening inside the engine all at once I would consider that perfectly acceptable, I note however that you say this is a new development. Our cars idle for at least 30-40 seconds, to allow oil to circulate and the engine to settle, check gauges, seatbelts, & clearances before moving etc.

[Dazzler]

Might be worth a squirt of Diesel Injector cleaner 

[jaspa]

Hi Succulent,
I have same problem with an added puff of smoke,has been doing so for 18 + mths.First start only then ok for rest of day.Numerous trips to dealer and they have found "metal fragments "in the injector pump!!..Dealer said warranty fix....Hyundai Aus have cried "contaminated fuel"
I have said 120,000ks and not a hiccup or miss nor breakdown.....I think I would hve noticed
any "fuel" issues.....and the dealer would have certainly heard......Am not HAPPY!! as this is a 12k
fix...
Mine is a 2008 i30 crdi slx

BEWARNED......

[Dazzler]

Welcome Jaspa..

Sorry to hear that (are you going to try and fight the ruling)

The words "ombudsman" or "Today Tonight" can be effective at times..    

[jaspa]

yeh going to give it a whirl,as far as i am concerned its a warranty fix(according to the dealer).
It looks like I am getting the cold shoulder from Hyundai as have not even received an aknowledgement to my emails even after confirming(by phone) that they were received,so looks like I will be taking it to the next level.

regards
.