My 1997 Honda Prelude acts like it wants to turn off while im driving. The rpms drop as well as the speedometer drop completely but the car does not turn off. Some mechanics have told me that the distributor is going bad and some have told me that the alternator is going bad. What could be the problem? I also hear like a whistling noise coming from the engine and as I accelerate the noise gets louder and the louder it gets the car acts up more.