95 Bonneville random stuttering and bucking
I'm at my wits end trying to figure out this problem. My car'* got almost 200,000 miles and was running good with no major problems. Then the car starting stuttering at random and is getting worse. Sometimes it runs just fine for awhile and then starts up again, the check engine light might come on for a few minutes and then go out. So far I've replaced the fuel filter, fuel pump, and fuel relay. Also replace the Mass Airflow Sensor, new plugs, wires and checked the coils. Any ideas would be greatly appreciated.