Why Does an Automatic Car Make Noise When Shifting to Reverse?
2 Answers
Automatic car making noise when shifting to reverse can be caused by the following reasons: 1. Faulty Clock Spring: If the sound comes from inside the steering wheel, it may be caused by interference from the clock spring inside the steering wheel. 2. Lack of Lubrication in Shock Absorber Plane Bearing: When turning the steering wheel, if the noise comes from outside the car, it may be due to lack of lubrication in the shock absorber's plane bearing. Applying some grease can solve this issue. 3. Loose Stabilizer Link Bushings: If the noise is not from the shock absorber's plane bearing, check if the stabilizer link bushings are loose or damaged. Loose or damaged stabilizer link bushings can cause noise not only when turning the steering wheel but also when driving on uneven roads. This can be fixed by adding shims. 4. Dirty Power Steering Fluid: If the power steering fluid is too dirty, it can increase the pressure in the power steering system. It is important to replace the power steering fluid promptly.
I used to experience a rattling sound when shifting into reverse in my automatic transmission car, which was really unsettling. The most common cause is transmission issues, such as a worn torque converter or loose shifting mechanism, leading to abnormal gear friction. Sometimes, rust or lack of lubrication in the shift linkage can also cause strange noises. Ignoring it may worsen the noise or even damage the entire drivetrain. I recommend first checking the transmission fluid: if it's low or dirty, it should be replaced immediately. Regular maintenance every 2 years or 40,000 kilometers can prevent problems. Additionally, visit a professional repair shop for diagnostics, such as scanning for fault codes or testing fluid pressure—it saves time and money. In short, early action avoids major repairs and ensures safe reversing, especially in parking lots or tight spaces where issues can be troublesome.
