Table of contents: Testing 🠇 Overhaul 🠇
Testing
1. The operation of the braking system vacuum pump can be checked using a suitable vacuum gauge.
2. Disconnect the vacuum hose from the pump and connect the gauge to the pump union using a suitable length of hose.
3. Start the engine and allow it to idle, then measure the vacuum created by the pump. As a guide, after one minute, a minimum of approximately 500 mmHg should be recorded. If the vacuum registered is significantly less than this, it is likely that the pump is faulty. However, seek the advice of a Peugeot dealer before condemning the pump.
Overhaul
4. Overhaul of the vacuum pump is not possible, since no components are available separately for it. If faulty, the pump must be renewed complete.