# Power steering gear housing test pressure (2004–2005 NB2 and Mazdaspeed)

Canonical URL: https://miatatorque.com/spec/power-steering-gear-housing-test-pressure-nb2-2004-2005/

Applicability: NB 2004–2005 (BP-Z3) — Actual2004 and2005 factory evidence.; NB 2004–2005 (BP-Z3-TURBO) — 2005 factory evidence; 2004 inferred within MSM family.

Confidence: fsm

8.33–9.06 MPa {85.0–92.3 kgf/cm², 1,209–1,314 psi}

Always confirm against your factory manual. Match every restriction and follow all stages and procedure notes. Disputed claims must not be automatically resolved. The complete record below preserves every printed unit, source claim and procedure.

```json
{
  "id": "power-steering-gear-housing-test-pressure-nb2-2004-2005",
  "name": "Power steering gear housing test pressure (2004–2005 NB2 and Mazdaspeed)",
  "aliases": [],
  "applies_to": [
    {
      "gen": "NB",
      "years": [
        2004,
        2005
      ],
      "engines": [
        "BP-Z3"
      ],
      "note": "Actual2004 and2005 factory evidence."
    },
    {
      "gen": "NB",
      "years": [
        2004,
        2005
      ],
      "engines": [
        "BP-Z3-TURBO"
      ],
      "note": "2005 factory evidence; 2004 inferred within MSM family."
    }
  ],
  "kind": "non-torque",
  "value_text": "8.33–9.06 MPa {85.0–92.3 kgf/cm², 1,209–1,314 psi}",
  "procedure": {
    "notes": "Connect factory pressure-gauge SSTs and bleed air; warm fluid to 50—60°C {122—140°F}. Open the gauge valve fully; at 1,000—1,500 rpm turn fully left and right and measure pressure. Do not hold the steering fully turned for more than 5 seconds; excessive fluid heat damages the pump. Repair or replace the gear housing if out of specification; follow the complete factory gauge removal and bleeding procedure."
  },
  "confidence": "fsm",
  "sources": [
    {
      "source": "fsm-2004",
      "page": "Steering Fluid Pressure Inspection (PDF pp. 1528–1529)",
      "as_printed": "Gear housing fluid pressure\n8.33—9.06 MPa {85.0—92.3 kgf/cm², 1,209—1,314 psi}",
      "verified_years": [
        2004,
        2004
      ],
      "document": {
        "id": "fsm-2004",
        "tier": 1,
        "title": "2004 Mazda MX-5 Miata Workshop Manual (electronic manual capture)",
        "covers": [
          {
            "gen": "NB",
            "years": [
              2004,
              2004
            ],
            "engines": [
              "BP-Z3"
            ]
          }
        ],
        "note": "Normally aspirated BP procedures audited; turbo procedures are covered separately."
      }
    },
    {
      "source": "fsm-2005",
      "page": "Steering Fluid Pressure Inspection (PDF pp. 1662–1663)",
      "as_printed": "Gear housing fluid pressure\n8.33—9.06 MPa {85.0—92.3 kgf/cm², 1,209—1,314 psi}",
      "verified_years": [
        2005,
        2005
      ],
      "document": {
        "id": "fsm-2005",
        "tier": 1,
        "title": "2005 Mazda MX-5 Miata Workshop Manual (electronic manual capture)",
        "covers": [
          {
            "gen": "NB",
            "years": [
              2005,
              2005
            ],
            "engines": [
              "BP-Z3"
            ]
          },
          {
            "gen": "NB",
            "years": [
              2005,
              2005
            ],
            "engines": [
              "BP-Z3-TURBO"
            ],
            "trans": [
              "6MT"
            ]
          }
        ]
      }
    }
  ],
  "jobs": [],
  "system": "steering",
  "component": "inventory-pass-2026-10",
  "componentName": "Service measurements and fasteners",
  "sequence_diagrams": [],
  "url": "https://miatatorque.com/spec/power-steering-gear-housing-test-pressure-nb2-2004-2005/"
}
```