What are the methods to solve exhaust pipe resonance with 2 yuan?
3 Answers
Drive the car onto the inspection pit, engage the handbrake, rev the engine to 5000 RPM and then release the throttle, carefully listen under the car. Improve the exhaust sound, the idle sound at 750 RPM is smooth, and the low-frequency resonance of the exhaust pipe at 1400 RPM disappears.
I know all about exhaust pipe resonance! It's mainly caused by aging rubber hangers or a deformed exhaust pipe, resulting in a buzzing noise at certain RPM ranges. Fix it for two bucks? There's a trick! Cut a thick old bicycle inner tube into finger-width rubber strips, then replace the original rubber hangers or wrap them around the hooks. Don’t tie it too tight, or the damping effect will be poor. If you can’t find an old inner tube, spend two bucks at a hardware store to buy a small piece of heavy-duty spring and hook it between the exhaust pipe and chassis as a temporary damper—it works! I used this trick to hold out for three months before finally spending twenty bucks on new hangers for a permanent fix. Perfect for roadside emergencies!
Don't rush to spend big money when the exhaust pipe shakes violently. Just prepare two zip ties and an old belt for an emergency fix: First, cut two small rubber pads from the belt and place them between the exhaust pipe hanger and the frame connection. Then, secure them tightly with zip ties. The key is to add some cushioning between the exhaust pipe and the frame. Two dollars for two packs of the cheapest zip ties will do the trick. Remember to prioritize the hanger closest to the front of the car, as vibrations usually start from there. Last week, I helped an elderly neighbor with this method, and the buzzing sound from his old Jetta immediately reduced by 80%. Of course, this is only a temporary solution. Before a long trip, it's safer to replace the worn parts.
