- Install the vacuum gauge as same as the leak test.
- Connect the oil pressure gauges (A) to the master cylinder using the attachments (special tools) as shown.
- Bleed air through the valves.
- Start the engine and let it idle.
- Have an assistant depress the brake pedal with a 98 N (10 kgf, 22 lbf) and 294 N (30 kgf, 66 lbf) of pressure measuring with a commercially available pressure gauge (A).
- The following pressures should be observed at the pressure gauges in each vacuum.
Vehicles With ABS
| Vacuum kPa (mm Hg, in.Hg) | N
(kgf, lbf) |
kPa
(kgf/cm², psi) |
| 0 (0, 0) | 98 (10, 22) | 0 (0, 0) |
| 294 (30, 66) | 1,700 (17, 240)
*: 1,600 (16, 230) |
|
| 66.7 (500, 19.7) | 98 (10, 22) | 4,600 (46, 670)
*: 4,200 (43, 610) |
| 294 (30, 66) | 10,500 (107, 1,500)
*: 10,300 (105, 1,500) |
*: 4-door KQ Model
Vehicles Without ABS
| Vacuum kPa(mm Hg, in.Hg) | N
(kgf, lbf) |
kPa
(kgf/cm2, psi) |
| 0 (0, 0) | 98 (10, 22) | 0 (0, 0) |
| 294 (30, 66) | 1,700 (17, 240)
*1: 1,600 (16, 230) *2: 1,800 (18, 260) |
|
| 66.7 (500, 19.7) | 98 (10, 22) | 4,400 (45, 640)
*1: 4,100 (42, 600) *2: 4,800 (49, 700) |
| 294 (30, 66) | 10,500 (107, 1,500)
*1: 10,300 (105, 1,500) *2: 9,800 (100, 1,400) |
*1: 4-door KQ Models and KK (VN) Models
*2: 4-door PA Models
- Inspect the master cylinder for leaks if the readings do not fall within the limits shown above.