2006-2008 Nissan Frontier, Xterra, Pathfinder Fuel Gauge Inaccuracy

2006-2008 Nissan Frontier, Xterra, Pathfinder Fuel Gauge Inaccuracy

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SERVICE PROCEDURE 1. Remove the fuel pump assembly from the vehicle and place it in a clean working area. • • Refer to section FL in the applicable Service Manual for removal information. Make sure to follow all Service Manual warnings and cautions. 2. At the top of the fuel pump assembly, disconnect the brown connector. 3. Unwind the harness. 4. Remove the fuel gauge sender unit from the fuel pump assembly as follows: a. Press in on the lock tab. b. Slide the sender unit off. c. Unclip the fuel temperature sensor. 5. Install the new fuel level sender unit in reverse order. Make sure: • Sender connector and fuel pump connector are securely connected. •

Fuel pump harness and sender harness are wrapped / twisted together. • Sender and temp sensor wires are inside guide clip. • Sender unit is locked in place. • Temp sensor is clipped in place. CAUTION: Do not bend the float arm when handling the new fuel gauge sender unit. 6. Carefully reinstall the fuel pump assembly back into the fuel tank. IMPORTANT: • Use a new seal (O-Ring). • Make sure the fuel pump assembly is installed straight down into the tank as shown in Figure 5. • DO NOT allow the fuel pump assembly to shift from center as shown in Figure 6. DO NOT allow shift from center. 7. Install the fuel pump assembly lock ring as follows: a. Place the fuel pump assembly locating tab between the lock ring holders. b. Place the lock ring on top of the fuel pump assembly. c. Insert a pocket screwdriver between the fuel pump assembly plastic locating tab and the lock ring holder as shown in Figure 8. NOTE: The pocket screwdriver will hold the plastic locating tab to the left (counterclockwise) while turning the lock ring to the right (clockwise). Locating tab under lock ring (shown by dotted line) Lock ring d. Hold the pocket screwdriver in place while installing / tightening the lock ring. NOTE: • Use Special Tool J-45722 to install the lock ring. • DO NOT use an impact wrench to install the lock ring. • The pocket screwdriver will hold the plastic locating tab to the left (counterclockwise) while turning the lock ring to the right (clockwise). e. Once the lock ring is in the locked position remove the pocket screwdriver.