Will not go over 60 MPH and it will not shift gears past second?

2017 HYUNDAI SONATA
36 MILES • AUTOMATIC
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RMAHON315
  • MEMBER
  • 1 POST
won’t go over 60mph and transmission won’t shift gears past 2nd.
Jun 4, 2023 at 9:50 PM
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STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
This sounds like a typical clogged catalytic converter but to be sure this guide can help confirm the issue. What size engine is in this car?

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter


Also, we should run the codes as well.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please go over these guides and get back to us.
Jun 5, 2023 at 1:16 PM
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