My 2000 SType 6 cyl...has what feels like an an intermittant misfire. Had the car tuned up better but not eliminated. Happens mostly at idle but ocassionaly on acellerating.. Tech says not coil as only sometime and no engine light. Any ideas welcome THx Rich

 

Failing coil units often cause misfire(s) to be intermittent and not set a DTC.

Use OBD port to determine if there are any pending DTCs. If so, list them here.