Rough idle....possibly due to harmonic balancer wobble?? - Pontiac G8 Forum: G8 Forums - G8Board.com
 
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post #1 of 3 (permalink) Old 06-09-2019, 12:16 PM Thread Starter
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Rough idle....possibly due to harmonic balancer wobble??

I’ve had the car a month or so it has thrown no codes and drives good at higher RPM. Once I’m seating at idle it’s rough and jumps a lot anyone experienced this and if so have any idea on the culprit? I’ve changed plugs and cleaned the throttle body.
Thanks
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post #2 of 3 (permalink) Old 06-19-2019, 11:45 AM
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Clean the MAF & TB and have engine scanned to see how fast the O2 sensors are reacting. A dirty MAF or tired old O2 sensors will do it too

'09 PBM GT. #2 "Time to start modding again"
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post #3 of 3 (permalink) Old 06-19-2019, 05:50 PM Thread Starter
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Thanks a lot. Checking this now
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