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Started to idle rough and had no power?

Tiny
G72155
  • MEMBER
  • 2017 KIA FORTE
  • 2.0L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 115,483 MILES
My car listed above LX started to idle rough and had no power. It began to smoke too. I checked it out with my OBDII tester, and it stated that I had a misfire on my #3 cylinder. I changed my spark plugs and it continued. I then rotated my ignition coils to see if the code changed to the other cylinder. I checked and it continued to read misfire in the #3 cylinder. After each retest, I deleted the code and started over. It is running better, but it isn't right. Where do I go now? Thank you.
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Tuesday, September 27th, 2022 AT 7:33 PM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
These only leave low compression, or the fuel injector is bad. here are two guides to help you test the compression and fuel injector with instructions below on how to remove the fuel injector on your car.

https://www.2carpros.com/articles/how-to-test-engine-compression

and

https://www.2carpros.com/articles/how-to-test-a-fuel-injector

Check out the images (below). Let us know what happens and please upload pictures or videos of the problem.
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Wednesday, September 28th, 2022 AT 4:50 PM
Tiny
G72155
  • MEMBER
  • 4 POSTS
Thank you. I'll try it and see.
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Wednesday, September 28th, 2022 AT 5:00 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
Please let us know what you find. We are interested to see what it is.
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Thursday, September 29th, 2022 AT 1:05 PM

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