When car is idling in park it makes a whistling noise from the exhaust and it also makes the idle rough when put into drive cars idle gos lower and noise get worse as im driving i can hear it and go with the idle unless u give it gas then it seems to go away with higher rpm id say 4 to 6 rpms when coming to a stop it makes the car almost die out u have to put it in nuetral to make it not sputter as bad the engine sounds fine but but the mufler whistles and it affects the acceleration
Feb 23, 2015 at 10:09 PM
