How to Replace the Isuzu Diesel Fuel Filter?
1 Answers
Diesel fuel filter replacement steps: 1. First disconnect the plug on the water level sensor to prevent wire harness twisting and knotting during disassembly. 2. Loosen the drain valve to release water and oil inside the filter. After draining water, use a container (>2L) to collect fuel from the filter for recycling. 3. Attach the removal wrench, aligning the wrench groove with the lower cover rib before installation. 4. Loosen and remove the lower cover counterclockwise; the filter element will come out with the cover, then pull the filter element out from the lower cover. 5. Remove the plastic seal from the new filter element, apply lubricant (recommended: #46 hydraulic oil) to both top and bottom O-rings for easier assembly. Avoid directly gripping the filter paper to prevent contamination or damage. 6. Replace the O-ring on the lower cover (included with filter element), ensure proper positioning, and lubricate the O-ring. 7. Center and pre-press the filter element into the lower cover until the bottom O-ring enters the cover's groove. 8. Insert the filter element upward into the filter canister until threads engage. Hand-tighten clockwise for 2-3 turns, then use the wrench to tighten (recommended torque: 30-35N.m). 9. Tighten the drain valve and water level sensor clockwise (recommended torque: 3-5N.m), then reconnect the water level sensor plug. 10. Loosen the air vent screw counterclockwise, press the hand pump until continuous oil flow appears at the vent, then tighten the screw clockwise (recommended torque: 1-2N.m). Start the engine and check for leaks.
