1991 Ford Ranger 2.3L Install Oil Pump
The Ford Ranger is a compact pickup truck manufactured by the Ford Motor Company since 1983. The 1991 model has a choice of several engines, including a four-cylinder, 2.3-liter engine. The oil pump circulates oil through the engine to keep it lubricated. The oil pump in a 1991 Ford Ranger with a 2.3-liter engine is on the front of the engine and is driven by the timing belt.
 Tools Used
|Socket wrench set|
 Install Oil Pump
- Disconnect the cable from the negative battery terminal with a socket wrench to prevent you from starting the engine inadvertently. Remove the timing belt from its pulley and detach the electrical connector for the camshaft position sensor on the camshaft.
- Insert a pry bar through the hole in the oil pump sprocket to prevent it from turning. Remove the mounting bolt for the oil pump sprocket with a socket wrench and disconnect the sprocket.
- Remove the mounting bolt for the camshaft position sensor with the socket wrench and disconnect the sensor. Remove the four mounting bolts for the oil pump and detach the oil pump from the front of the engine. Discard the gasket for the oil pump.
- Clean the mating surfaces on the oil pump gasket with a shop rag and lubricate the new gasket with clean engine oil. Install the new oil pump and gasket and torque the mounting bolts for the oil pump to between 90 and 123 inch-pounds with a torque wrench.
- Attach the camshaft position sensor and torque its mounting bolts to between 45 and 61 inch-pounds with the torque wrench. Install the oil pump sprocket and tighten its mounting bolts to between 30 and 40 foot-pounds.
- Connect the electrical connector for the camshaft position sensor and install the timing belt. Reattach the cable to the negative battery terminal with the socket wrench. Add 8 ounces of engine oil to prime the oil pump.