Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2004 Infiniti QX56 AWDFACTORY OEM SERVICE PROCEDURE
With GST
- Start engine and warm it up to normal operating temperature.
- Drive the vehicle at a speed of 80 km/h (50 MPH) for a few minutes in the suitable gear position.
- Set 5th position, then release the accelerator pedal fully until the vehicle speed decreases to 50 km/h (30 MPH).NOTE: Never apply brake during releasing the accelerator pedal.
- Repeat steps 2 to 3 five times.
- Stop the vehicle and turn ignition switch OFF.
- Wait at least 10 seconds and restart engine.
- Repeat steps 2 to 3 five times.
- Stop the vehicle and connect GST to the vehicle.
- Make sure that no DTC is displayed. If the DTC is displayed, go to DIAGNOSTIC PROCEDURE .
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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