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.

2000 Infiniti QX4FACTORY OEM SERVICE PROCEDURE

Fuel Pump

REGULATED FUEL PRESSURE

Application	At Idle W/O Vacuum - psi (kg/cm² )	At Idle W/Vacuum - psi (kg/cm² )
All Models (Except Sentra 1.8L CA)	43 (3.02)	34 (2.39)
Sentra 1.8L CA	-	51 (3.57)

FUEL PUMP RESISTANCE

Application	Resistance @ 77°F (25°C)
All Models	.20-5.0 Ohms

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready Tools Compare Repair Quote Quote Shield Pro

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.