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Rough engine idling

Tiny
DAVE0104
  • MEMBER
  • 2015 KIA SORENTO
  • 3.3L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 170,000 MILES
Obd code said crankshaft position sensor needed replacement so I did that. The next day (not driven 100 miles yet) the problem of rough idling exists and the “check engine” will flash until I pull over and stop/start the engine. Will the problem resolve itself and the light go out?
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Thursday, May 30th, 2019 AT 5:45 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Hi Dave,

When you say the check engine light is flashing. Do you mean it comes on and stays on then goes out intermittently or it is steadily flashing?

If it is flashing steadily, you don't want to drive it until you pull codes again and fix what most likely will be a misfire. This flashing check engine light means you are doing potential catastrophic damage to the engine and or exhaust because there is a server misfire.

This will also explain the rough idle and running condition.

Please pull the codes and send me what you find and we can go from there. Thanks

https://www.2carpros.com/articles/engine-vibration-at-idle
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Friday, May 31st, 2019 AT 7:37 PM

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