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2018 Kia soul. Knocking while accelerating.


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rgalang75
New User

May 4, 2024, 9:38 PM

Post #1 of 8 (286 views)
2018 Kia soul. Knocking while accelerating. Sign In

Hello, my 2018 Kia soul started making this knocking noise today when I would accelerate. Did a little research online some said blown head gasket, bad spark plugs, or clogged catalytic converter. Only knocks when I’m accelerating. Never overheated. No thick oil, no white smoke out of tailpipe. Coolant cap clean. That’s really all I checked. No engine light on. Noticed when I was idling car would start to shake, not crazy but I could feel it. If anyone could give any advice I would greatly appreciate it! Thank you.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

May 5, 2024, 3:56 AM

Post #2 of 8 (255 views)
Re: 2018 Kia soul. Knocking while accelerating. Sign In

Are you sure the noise is actually coming from the engine and not other areas of the drive train?



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



rgalang75
New User

May 5, 2024, 1:59 PM

Post #3 of 8 (236 views)
Re: 2018 Kia soul. Knocking while accelerating. Sign In

Hi, thank you for the reply. It sounds like it was coming from under the car so I had my grandpa rev the engine. Can’t really tell. Opened up the hood and I rev the engine and my grandpa said he could be it more around the engine. When it’s idling you can’t hear it. Only when I rev the engine up.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

May 5, 2024, 2:03 PM

Post #4 of 8 (232 views)
Re: 2018 Kia soul. Knocking while accelerating. Sign In

If you hear it that way it is likely the engine making the noise.

Maybe you could post a recording of the noise but even that way it's nearly impossible to diagnose a noise over the Internet.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



rgalang75
New User

May 5, 2024, 3:59 PM

Post #5 of 8 (219 views)
Re: 2018 Kia soul. Knocking while accelerating. Sign In

I have a video but it’s not allowing me to post it. I can send it to your though email or text if you would like


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

May 5, 2024, 4:02 PM

Post #6 of 8 (216 views)
Re: 2018 Kia soul. Knocking while accelerating. Sign In

No, there are plenty of hosting sites around.

We don't give out personal info.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



tractorboy
User
tractorboy profile image

May 11, 2024, 4:45 PM

Post #7 of 8 (96 views)
Re: 2018 Kia soul. Knocking while accelerating. Sign In

how many miles do u have on the car? you can have a blown head gasket between the cylinder and the outside, not too common, usually they are between 2 cylinders, or the water jacket/oil passage. usually a blown head gasket does not make any noise...usually a pin size leak. could be ur exhaust system, probably leaky exhaust manifold gasket., look around the exhaust manifold for blow by. if it's real bad and it's the exhaust manifold it will eventually set the CEL as too lean, if it's a "V" motor it will say which bank.


tractorboy
User
tractorboy profile image

May 13, 2024, 4:23 AM

Post #8 of 8 (78 views)
Re: 2018 Kia soul. Knocking while accelerating. Sign In

I had a malibu that was making a thumping noise and was not sure it was the motor. I removed the serpentine belt and started the car. I already had the hood open, went around and listened under the hood for 10 seconds...no longer.... no thumping...so was not the motor...turned out to be the power steering pump.






 
 
 






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