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
- Check the coolant level in the reservoir tank and radiator. Allow engine to cool before checking coolant level.Β
- If the coolant level in the reservoir tank and/or radiator is below the proper range, skip the following steps and go to DIAGNOSTIC PROCEDUREΒ .
- Confirm whether customer filled the coolant or not. If customer filled the coolant, skip the following steps and go to DIAGNOSTIC PROCEDUREΒ .
- Disconnect engine coolant temperature sensor harness connector.
- Connect 150Ξ© resistor to engine coolant temperature sensor harness connector.
- Start engine and make sure that cooling fan operates at higher speed than low speed.
Be careful not to overheat engine.Β
- If NG, go to DIAGNOSTIC PROCEDUREΒ .
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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