Relieving Fuel Pressure

On Defender 90, fuel pressure can be relieved at fuel feed fitting at fuel rail or fuel filter fitting. On Discovery, fuel pressure can be relieved at fuel filter fitting. On all models, position cloth around fitting to catch fuel spray. Using 2 wrenches, loosen fitting. Tighten fuel filter fitting to 15 ft. lbs. (20 N.m). Tighten fuel feed fitting to 12 ft. lbs. (16 N.m).