MorWin
2022 Kia Stonic Diesel Experiencing Rough Idling, Power Loss, and Unusual Noises: Seeking Diagnostic Help
Loss of engine power
Loud hissing on acceleration
Whistling noise
Shaking while idling
Black smoke from exhaust on acceleration
Check engine light on
Stalling while idling
Unsteady engine
Jerking on acceleration
6 comment(s)
Hey there your situation sure does sound similar to what I'm dealing with! This waste gate issue is bad news, but I'm relieved to know what might be causing the trouble with my Stonic. It's been a total pain dealing with all these symptoms. By the way, do you remember roughly how much your garage charged you to replace the faulty waste gate valve? Just want to get an idea of what I might be up against. And since you got it fixed, has anything else gone wrong or has the car been running smooth? Thanks for sharing your experiences, bud! Really appreciate it.
Hey! Yeah, been there done that! Let me tell you, the waste gate valve ain't gonna be kind to your wallet - it ended up costing me about 860€, and that included labor. Not the cheapest fix, but it definitely solved the issues I was having with my Sorento. Since getting it repaired, the little beast has been running smooth as silk. The malfunction in the boost pressure was fixed on the visit. Hope this helps you out - just hang in there!
Hey! Thanks for the heads up on the potential cost. Wasn't expecting this issue to be a walk in the park but it's better knowing what I might be hit with, toe to toe with €860 thereabouts. It's a relief to hear your Sorento's been running fine since the repair. Let's hope once my Stonic's issue gets sorted, it'll zoom smoothly too. Honestly, your experience has been really helpful! Thanks for sharing. Guess it's time to bite the bullet and head over to the mechanic's. Wish me luck!
@Mattia
What can I do to fix the error?
Based on the symptoms described, it's likely that your vehicle has a faulty waste gate valve. This is not a minor issue and requires professional attention. I recommend taking your car to a trusted mechanic for a thorough inspection and potential replacement of the waste gate valve. Please remember that this is just a suggestion based on the information provided, and the actual problem could be different. After the repair, please update us on the progress. Do you have any other questions?
Let our mechanics help you!
Best Answer
Hey there, Sounds like you've got a similar issue to what I had with my 2019 Kia Sorento. Your symptoms lined up exactly with what I experienced - smoke, weird noises, shakes, you name it. Turned out, my problem was a faulty waste gate valve. At low pressure, the vehicle would behave alright, but when I stepped on the gas, trouble started. It's as the turbo's not working right, because, technically, it isn't with a defected waste gate. I had to have the waste gate valve completely replaced at the garage. The operation wasn't too smooth, it involved dismantling quite a few parts and the turbo itself. Once replaced, performance was bumped back to what it was, no more smoke or odd noises. I dare say, if it is a waste gate issue, it isn't minor, so you'd better not delay in getting it checked out. Good luck!