Why are Oil Pump more likely to make abnormal noises after new installation

When the brakes are about to move or the brakes are about to stop, the automatic transmission model will make a clanging sound. This is because as long as it is in D or R gear, the automatic transmission vehicle will always produce torque. The force is pressed on the brake disc on the drive wheel, and the manual transmission will only occasionally hear a clanging sound when the slope is loose or the brake is stepped on.

When the brakes of the automatic transmission model are half-raised, the car is already powered, but the brake pads are still in a semi-braking state. At this time, there is a lot of friction between the brake pads and the brake caliper. Make a resonant sound. Transmission Hard Parts will make such a sound when reversing. Manual transmission models are usually not needed because brakes are not required when starting.
Lift the car, then use the tire lever to move the wheel and support arm to check whether the front suspension lower arm bushing is damaged. Judge the wear of the rubber sleeve, if you find any damage, use the wooden wedge method, and then test drive to determine whether there is a fault. After replacing the regular factory or brand rubber sleeve, remember to place the four wheels of the vehicle.
1. Make a friction sound between the brake pad and the brake disc.
2. There are foreign objects between the brake disc and the brake pad.
3. Reasons for the quality of Transmission Hard Parts: high metal content or poor quality, the friction material is too hard.
4. Due to irregular or abnormal use time and abnormal contact friction with (new brake pads), the middle of the brake disc is protruding and excessive loneliness.
5. The fixing pin hole of the brake cylinder is naturally worn, and the spring pressure plate loses its elasticity. Abnormal sound is caused by piston jamming, rust or inflexibility
6. The brake system lacks brake fluid;
7. The brake disc fender is abnormally deformed, and the reverse direction produces close friction with the brake disc;
The possibility of other parts or components is not ruled out, and the actual vehicle test results shall prevail. Especially when the cold car is not fully started, the hot car will quickly reverse, and the brakes are more likely to make sounds. In this way, there is no abnormality. Many cars of different brands are the same, and this is not a problem.
When the brake is abnormal, the car will not vibrate or shake, and you will not feel the inertial balance on both sides of the car, and you will not feel that one of the four corners of the car is sinking. None of the above points can rule out "the sound comes from the power of the building." If "the sound comes from the emergency building in Guanli", then the problem is not just reversing, the car will make abnormal noises, will not brake on speed bumps, and the direction will become unstable.