Why do it sound like my engine is making a whistling noise..??

Hello, if your check engine light is blinking, it is most often an indication of an engine misfire, which is often caused by ignition spark not being consistent. Faulty spark plugs or coils could be at the root of your concern. Diagnostic testing is required to find out what has failed and what must be done to resolve the concern. www.repairpal.com/repair-shops