I have a 2010 Toyota Corolla with 66,000 miles on it. When accelerating my car, it becomes bumpy between 20-40 miles per hour. I don’t notice this happening while on the highway. I’ve had a couple of mechanics tell me they think it could be either the coil pack, spark plugs or fuel filter. I have 2 questions. First, how can I test the coils and spark plugs to see if they are good or bad and second, do you have any other suggestions on what might be the problem? Thanks for your help!
Thursday, January 23rd, 2014 AT 6:48 PM