Brake vacuum pump replacement — an intermediate DIY repair. Read the whole guide before starting.

Tools + parts

• New vacuum pump (model-specific)
• Socket set
• Torque wrench
• New O-ring / gasket (often comes with pump)

Steps

1. Park on level ground; disconnect battery
2. Locate pump — typically mounted on engine or behind intake
3. Disconnect electrical connector + vacuum line
4. Remove mounting bolts
5. Clean mating surface thoroughly
6. Install new pump with new O-ring
7. Torque bolts to spec
8. Reconnect vacuum line + electrical
9. Reconnect battery; test brake pedal feel

If you're unsure at any step, a mechanic is $150-250 for this job — reasonable given brake safety.