Slow Response, what could be the cause?

[Odwa_M]

Afternoon to the MyBB community

I need you guys to advise me/offer possible solutions regarding my car.

I have the Hyundai Getz 1.6 HS. What I have observed lately is the reluctance of the vehicle to
respond to the accelerator. If I am standing at Stop/Traffic lights,for example, then the lights turn green and
I engage the 1st gear and press the accelerator, the vehicle takes time to respond and pick-up speed even though I have floored the accelerator.After a few seconds, it picks up speed and I have to let go of the accelerator.

There's no smoke or any thing of that sort, the idling is normal.I changed the spark-plugs, oil, air filter and oil filter and for a few weeks, it was fine. Then it started again and it's not consistent, sometimes it happens and sometimes, it does not.

TIA

 

[Jet-Fighter7700]

crankshaft pulley bolt story, bad batch of machining done at hyundai/kia factory.

so many of them do weird things under load

also affecting kia picantos and hyundai I10 with g4HG engine,

big article here about it,
https://www.carcomplaints.com/news/2017/kia-sorento-crankshaft-bolt-lawsuit.shtml

article is about a kia sorento, but ANY kia/hyundai was affected by it,

Id check carefully as its the first sign its about to go...

 

[Jet-Fighter7700]

here is more, some in a hyundai getz

http://www.kiaownersclub.co.uk/foru...haft-pulley-bolt-failur_topic5189_page33.html