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How to Replace Oxygen Sensor on Ford F150?

How to Replace Oxygen Sensor on Ford F150?

Here are 12 easy steps to remove and install a new oxygen sensor on your Ford trucks. Gather all the necessary tools before starting this procedure.

How to Replace Oxygen Sensor on Ford F150? You can replace the oxygen sensor in Ford F150 by locating its position, use penetrating oil to remove nuts and bolts, take out the heat shield, remove the negative battery wire and electrical connections, remove the old sensor, add an anti-seize compound, install a new O2 sensor, and attach the battery terminals.

How to Replace Oxygen Sensor on Ford F150?

Before starting the installation process, you should park it on a hard flat or level ground. You have to lay down below the pickup, space should be enough; you can lay down easily.

Items required

  • Wire brush
  • Wheel block
  • Large size wrench
  • Penetrating oil
  • Flex head ratchet
  • Car ramps
  • Thread chaser
  • Jack stand
  • Open-end wrench
  • Screwdriver

Locate the oxygen sensor

Make sure the pickup is stable and constant before looking for the accessories.

Keep it in your mind that you park the pickup on that side, which aids you to access the equipment. The wires and connections are under the automobile.

Use penetrating oil

Apply penetrating oil, it is used to free nuts, bolts, screws, and mechanical parts of a pickup. It helps to remove narrow space parts. It works well to disconnect the used device.

Never pull out forcefully because it can damage the tread and wires.

Apply a light WD40 pungent or penetrating oil on nuts and bolts; they will lose after a while and save it from damage and harm. Add a toolbox in a truck bed and store all these accessories in it.

Take out the heat shield

Some products are not equipped with a heat shield; some gadgets are prepared with a heat guard. The heatshield is applied to it to protect or save from device damage.

Before removing the central part, you must have to remove heat armor. The heatshield is not fixed by using bolts and nuts.

Remove the negative battery wire

After reading the codes, remove the negative wire. Attach the black wire to the battery, which has a negative symbol ( – ). Cover the battery cable entirely with a rag to prevent it from touching the battery post.

Remove connectors and electrical connections

The device connector color is blue; you have to pull that connector gently. The wires are connecting at the end of the device plugged into the finish line. There is a plastic plug injected into the vent.

Disconnect the electrical cables with an open-end wrench, avoid damaging locking tabs of plastic. It is a unique tool just like the deep well socket, but you can get a loaner kit if it does not utilize it.

Never cut the wires or connection if you feel difficulty while removing. Leave it, and you should consult with a professional mechanic.

Remove the old oxygen sensor

Turn the gadget in counterclockwise directions with a gadget socket or open-end wrench.

This tool has a slot on one side to fix the device cable harness while removing it. Check either the device turn or not.

If it does not turn or loose and pull it forcefully, it will harm the threads. It will end up with more expensive or costly and unable to repair. Apply penetrating or pungent oil again, left it for a few minutes.

Let the finished pipe warm and turn it again. If it is still stuck and does not rotate, cut the cable harness with a deep well socket of six-point or 3/8 ratchet wrench. Fix the ratchet over the device where it attaches to the expend line.

These are available in auto stores or online. But if any of the above tools are unavailable, cut the gadget cables to comfort the removal.

Once you have detached the accessories, put on penetrating fluid or a rag to the catalytic converter or tube, mounting outfits, and clean out the gears with a nylon brush.

If the outfits appear nicked or get damaged, repair it with a thread chaser. If the thread looks stripped or creased, mend it with a tap.

Choose the accurate size of the tap and drill for an excellent job, after patching up the thread, clean metal shaving outfits with a clean rag or pungent fluid. You should also clean the fuel injectors for better performance.

Compare the new oxygen sensor with the old one

Before installing the new product, it is essential to compare and match the new device with the old one. Different tools are available for various types of vehicles.

Ensure it is accurate and appropriate, and it should be specialized for your pickup.

Select a new product in the same size and shape as the previous device. Always buy a high-quality product; it will long-lasting and prevent you from repeatedly changing.

It is better to bring the previous device while purchasing a new gadget. You should also check the harness connectors, and they should be the same.

Anti-seize compound

It is an essential lubricant; maybe it’s strange for you when you see it the first time, blow out a few lubricants onto the new device.

If your new device is a universal type, you should put on an anti-seize compound on the small spot thread. It will aid to remove easily when you have to change it again.

You should wear gloves while spreading gel and avoid your hands. You should use a small amount of gel to fix it correctly in the exhaust line.

Install a new Oxygen sensor

Connect or screw the new oxygen sensor using a torque wrench, 7/8 wrench, or with a socket. Tighten up the device to the torque by the following manual.

If you do not have an instruction book, purchase a repair instruction book from online or auto stores.

Gently move it and prevent the wiring from harm and damage. It should be secure and adjusted to save from leakage. It will help you get a better MPG with F150 EcoBoost.

Attach the electrical connection

After installing the device, you should carefully plug in the electrical wiring and negative battery.

Plug the electrical connector and away from the cables from touching the hot shells or engines during driving.

After connecting all the connections, check if the problem is fixed or not. If your pickup is more efficient, smooth, it sounds well, and uses low fuel; these are the signs of suitable equipment.


The cost of reinstalling it depends on the exact problem. The issue may lie in the engine module, wires, catalytic converter, hoses, or metal tabs.

  • The cost of mending damaged cables is $100 to $200.
  • The cost of fixing exhaust is $100 to $200.
  • THE mending O2 sensor cost is $200 to $300.
  • Exchanging catalytic converter cost is $400 to $2400.

What are the symptoms of a bad oxygen sensor?

These symptoms are:

  • Ford is unable to clear the emission test.
  • The code checker indicates device issues.
  • Petrol mileage will reduce.
  • See light indications on the display, engine light can show if there is an issue.
  • Stalling, deprive performance, rough idling.
  • Check if the sound is not right, not running efficiently or smoothly, and use a high amount of petrol.

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