How to Replace a Ford Ranger Oil Pan Gasket

Written by jeffrey caldwell
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The oil pan on a Ford Ranger pickup is mounted on the bottom of the engine block; it collects motor oil after the oil circulates through the engine. If you regularly notice a black puddle underneath your engine, it is a good sign that you have an oil pan leak. Engine oil leaks are not only environmentally hazardous--low oil levels can cause serous engine damage.

Skill level:
Moderate

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Things you need

  • Wrench set
  • Waste oil collection pan
  • Line wrench
  • Automotive jack
  • Jack stands
  • Socket set
  • Masking tape
  • Marker
  • Automotive solvent
  • Flat razor blade
  • RTV silicone sealant
  • Replacement oil pan gasket
  • Motor oil
  • Ford Ranger owner's manual

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Instructions

    Draining the Oil Pan

  1. 1

    Disconnect the ground cable from the negative battery terminal, by loosening the retaining bolt with a wrench. Pull the clamp off the terminal.

  2. 2

    Pull the oil dipstick from the dipstick tube with your hand.

  3. 3

    Place a waste oil collection pan underneath the connection between the transmission oil cooler lines and the radiator. Unscrew the transmission oil cooler line fittings from the radiator, using a line wrench.

  4. 4

    Raise the vehicle safely using an automotive jack. Support it with jack stands placed underneath the frame.

  5. 5

    Place a waste oil collection pan underneath the drain bolt on the bottom of the oil pan. Unscrew the drain bolt using a socket, and allow the oil to drain from the engine.

    Removing the Oil Pan

  1. 1

    Label and disconnect the wires connected to the starter solenoid, using masking tape and a marker.

  2. 2

    Unscrew the bolts that secure the starter motor to the engine block, using a socket. Remove the starter motor from the vehicle.

  3. 3

    Unscrew the nuts and bolts that secure the head pipe to the exhaust manifold, using a socket and wrench. Slide the head pipe out of the way.

  4. 4

    Unscrew the bolts that secure the transmission oil cooler lines to the engine block, using a socket. Slide the lines out of the way.

  5. 5

    Unscrew the bolts that secure the oil pan to the engine block. Lower the oil pan away from the engine block and remove it from the vehicle.

  6. 6

    Clean the oil pan, using an automotive solvent and allow to air dry. Be sure to remove all the old gasket material from the gasket mating surface.

  7. 7

    Clean the gasket mating surface on the bottom of the engine block, using a flat razor blade. Be sure to remove all the old gasket material.

    Installing the Oil Pan

  1. 1

    Place a light dab of RTV silicone sealant every two to three inches along the gasket mating surface on the oil pan.

  2. 2

    Lay the replacement gasket into position on the oil pan.

  3. 3

    Raise the oil pan into position underneath the engine block, using your hand.

  4. 4

    Screw in the bolts that secure the oil pan to the engine block, using a socket.

  5. 5

    Screw in the bolts that secure the transmission oil cooler lines to the engine block, using a socket.

  6. 6

    Slide the head pipe into position at the rear of the exhaust manifold. Screw in the bolts that secure the head pipe to the exhaust manifold using a socket.

    Installing the Starter Motor

  1. 1

    Raise the starter motor into position against the engine block. Screw in the bolts that secure it, using a socket.

  2. 2

    Reconnect the wiring harness to the starter motor, using the labels you made during disassembly.

  3. 3

    Screw the oil pan drain bolt into the bottom of the oil pan, using a socket.

  4. 4

    Screw the transmission oil cooler line fittings into the radiator, using a line wrench.

  5. 5

    Slide the oil dipstick into the dipstick tube, using your hand.

    Testing and Inspecting for Leaks

  1. 1

    Lower the vehicle.

  2. 2

    Reconnect the ground cable to the negative battery terminal. Slide the clamp over the terminal and tighten the retaining bolt, using a wrench.

  3. 3

    Fill the engine with oil according to the specifications listed in the Ranger's owner's manual.

  4. 4

    Run the engine and check the transmission oil level, using the procedure outlined in the owner's manual.

Tips and warnings

  • Most auto parts stores will recycle waste motor oil at no cost.
  • Always follow the instructions listed in the owner's manual when lifting and lowering a vehicle. Failure to do so could cause injury or death.
  • Prolonged contact with used engine oil can cause serious skin disorders, including cancer. Wear protective gloves when handling used oil.

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