Ford Ranger Maintaince And Repair Manual page 252

1. Disconnect the negative battery cable.
2. Disconnect the wiring at the sender/switch.
3. Remove the oil pressure sender/switch from the engine.
To install:
4. Coat the threads with electrically conductive sealer and thread the unit into place. Tighten the
sender/switch to 10−18 ft. lbs (13−24 Nm).
5. Attach the wiring to the sender/switch and connect the negative battery cable.
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HOW TO USE THIS BOOK
Oil pressure and level switches used on the 3.0L engine
Click to enlarge
REMOVAL & INSTALLATION