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Rough idle, engine stutter, intermittent check engine light

Tiny
NYGLEE
  • MEMBER
  • 1995 BUICK RIVIERA
  • 3.8L
  • V6
  • 2WD
  • AUTOMATIC
  • 180,000 MILES
I have a rough idle and a stutter between 40 and 60 miles an hour and an intermittent check engine light that will be on for a day and then off for two days.
I have changed the ignition control module, the crank sensor, the cam sensor, all the wires and the plugs are about a year old.
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Sunday, August 5th, 2018 AT 6:09 PM

1 Reply

Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I am Danny.

Have you been able to have the code retrieved and can you supply us with the code number? That helps us with diagnosis . If you do not have a scanner/code reader you can take your car to your local auto parts store (Pep Boys, AutoZone,O'Reillys) and they will check for free. Once you get back to us with the code numbers we will be happy to help. I have attached a link showing what is involved. Hope this helps and thanks for using 2CarPros.
Danny-

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing
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Sunday, August 5th, 2018 AT 7:12 PM

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