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Great post, car had rough idle and figured plugs could stand changing at 6yrs old and 52k miles. Changing went easy. However, on test drive it died twice in a 10 mile city drive, once in motion and once at idle. I did disconnect negative terminal when I changed the plugs so do you think it is just relearning idle? I then let it sit idling for half hour and drove it good for another 2 miles so I'm hoping it is good now. Thanks for any insight.
 

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Thanks, it is running better with no shutting off in two days of driving. Does seem to rev up a bit at idle sometimes so I'll check the throttle body next week.
 
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