According to the owner's guide, it can be seen that the causes and solutions of the iron bump of Ford pickup truck when it turns from 1000 to 1200 are as follows:

1. The tire pressure is too high, resulting in serious wear of the crown position. Reducing tire pressure can solve this problem.

2. Abnormal tire wear is noisy, so it needs to be replaced.

3. The wheel bearing is damaged, resulting in buzzing, so it is necessary to replace the wheel bearing.

4. The clearance between the piston and the cylinder wall is too large, resulting in buzzing, which needs professional maintenance.

5. The engine knocks on the cylinder, causing the vehicle to hum when driving, which requires professional maintenance.

6. The engine gasket or engine guard mounted on the vehicle vibrates with the engine, so it is necessary to replace the engine gasket or adjust the position of the engine guard.

7. Excessive wear of brake pads produces noise, so it is necessary to replace the brake pads.