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How to Replace the Oil Pump on a 1989 Ford Econoline F-150

The Ford Econoline is a series of full-size passenger and cargo vans. The F-150 designation indicates the vehicle has a rated carrying capacity of at least 1/2 ton. The most common engine in a 1989 Ford Econoline F-150 is an 8-cylinder 5.0-liter engine. The oil pump on this engine is located on top of the engine near the front.

Tools Used: Socket wrench set, Engine oil, Torque wrench

Replace the Oil Pump

Disconnect the mounting bolts from the oil pan with a socket wrench. Remove the oil pan from the engine. Detach the inlet tube from the oil pump and disconnect the screen assembly.

Remove the mounting bolts from the oil pump with a socket wrench. Pull the oil pump drive shaft from the body of the oil pump. Disconnect the oil pump assembly from the distributor socket and discard its gasket.

Fill the inlet and outlet ports of the new oil pump with engine oil and turn the oil pump drive shaft to distribute the oil through the pump. Align the oil pump drive shaft with the distributor shaft by rotating the oil pump drive shaft as required. Insert the oil pump drive shaft into the distributor socket. Position the new gasket on the pump body and insert the oil pump drive shaft into the pump body.

Connect the mounting bolts to the oil pump and tighten them to between 22 and 32 ft. lbs. with a torque wrench.

Install the screen assembly for the oil pump with a socket wrench and attach the inlet tube for the oil pump. Mount the oil pan and fasten the attaching bolts with a socket wrench.

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