how to fix low oil pressure warning in my Ford F-150 13th Generation (2015-2020)

Ford F-150 13th Generation (2015-2020)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

4 min read

645 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix low oil pressure warning in Ford F-150 (2015-2020). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Engine

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Allow engine to cool before opening the oil system.

Symptoms

•Low oil pressure warning light illuminated on the dashboard
•Engine noise (ticking or knocking sounds)
•Decreased engine performance or power
•Oil leaks under the vehicle
•Oil level below the recommended mark on the dipstick

Diagnostic Steps

1
Check the engine oil level using the dipstick to ensure it is at the proper level.
2
Inspect for visible oil leaks around the oil pan, oil filter, and oil pressure sending unit.
3
Scan the vehicle's computer using an OBD-II scanner to check for any stored error codes related to the oil system.
4
Test the oil pressure using an oil pressure gauge to confirm if the pressure is within the manufacturer's specifications.
5
Inspect the oil pump for any mechanical defects or failures.
6
Check the oil pressure sending unit for proper operation and wiring integrity.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•OBD-II scanner
•Oil pressure gauge
•Socket set
•Torque wrench
•Oil filter wrench

Parts Required

•Engine oil (5W-20)
•Oil filter
•Oil pressure sending unit
•Oil pump (if needed)

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Diagnostic Steps

1
Check the engine oil level using the dipstick to ensure it is at the proper level.
2
Inspect for visible oil leaks around the oil pan, oil filter, and oil pressure sending unit.
3
Scan the vehicle's computer using an OBD-II scanner to check for any stored error codes related to the oil system.
4
Test the oil pressure using an oil pressure gauge to confirm if the pressure is within the manufacturer's specifications.
5
Inspect the oil pump for any mechanical defects or failures.
6
Check the oil pressure sending unit for proper operation and wiring integrity.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface, and the engine is cool.
Disconnect the negative battery terminal to prevent electrical issues.

2. Check Oil Level

Remove the dipstick, wipe it clean, and reinsert it fully.
Pull the dipstick out again and check the oil level; add oil if it is low, using the recommended oil type (typically 5W-20 for this model).

3. Inspect for Leaks

Visually inspect the oil filter and oil pan for leaks.
Tighten any loose fittings or replace any defective components if leaks are found.

4. Replace Oil Pressure Sending Unit

Locate the oil pressure sending unit on the engine (typically near the oil filter).
Disconnect the electrical connector from the sending unit.
Use a socket to remove the sending unit and replace it with a new unit.
Reconnect the electrical connector.

5. Testing Oil Pressure

Remove the oil pressure sending unit and install an oil pressure gauge in its place.
Start the engine and monitor the pressure reading; it should be within the normal range (typically 25-65 PSI at idle).
If the pressure is low, proceed to inspect or replace the oil pump.

6. Replace Oil Pump (if necessary)

Drain the engine oil and remove the oil pan using the appropriate socket set.
Remove the old oil pump by unbolting it from the engine block.
Install the new oil pump, ensuring proper alignment and torque specifications (consult manual for exact torque values).
Reinstall the oil pan with a new gasket, ensuring a proper seal.

7. Refill Engine Oil

Refill the engine with the correct type and amount of oil.
Reconnect the negative battery terminal.