how to fix low oil pressure warning on 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

649 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 on 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 the battery before working on electrical systems.
•Allow the engine to cool before opening the oil drain plug or oil filler cap.

Symptoms

•Oil pressure warning light illuminated on the dashboard
•Engine knocking or tapping noises
•Decreased engine performance or power
•Oil leaks visible under the vehicle
•Higher engine temperatures than normal
•Oil level appears low on the dipstick

Diagnostic Steps

1
Check the oil level using the dipstick to ensure it is at the appropriate level.
2
Scan the vehicle using an OBD-II scanner to check for any related trouble codes.
3
Inspect the oil filter for clogs or leaks.
4
Examine the oil pressure sending unit for signs of damage or malfunction.
5
Test the oil pressure with a mechanical oil pressure gauge to confirm actual pressure levels.
6
Inspect the oil pump for proper operation and wear.

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 filter wrench
•Socket set
•Torque wrench
•Oil catch pan
•Mechanical oil pressure gauge

Parts Required

•Engine oil (correct grade and amount)
•New oil filter
•Oil pressure sending unit (if faulty)
•Oil pump (if faulty)

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Diagnostic Steps

1
Check the oil level using the dipstick to ensure it is at the appropriate level.
2
Scan the vehicle using an OBD-II scanner to check for any related trouble codes.
3
Inspect the oil filter for clogs or leaks.
4
Examine the oil pressure sending unit for signs of damage or malfunction.
5
Test the oil pressure with a mechanical oil pressure gauge to confirm actual pressure levels.
6
Inspect the oil pump for proper operation and wear.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is cool.
Disconnect the battery to prevent any electrical shorts.

2. Check and Replace Engine Oil

Sub-steps:
1. Locate the oil drain plug and place an oil catch pan underneath.
2. Remove the drain plug using a socket wrench and allow the old oil to drain completely.
3. Replace the drain plug and tighten to the manufacturer’s specified torque (typically around 20-30 ft-lbs).
4. Remove the oil filler cap and pour in the appropriate grade and amount of new engine oil (refer to the owner's manual for specifications).
5. Replace the oil filler cap securely.

3. Inspect and Replace Oil Filter

Sub-steps:
1. Locate the oil filter (usually near the oil pan).
2. Use an oil filter wrench to remove the old oil filter, allowing any remaining oil to drain into the catch pan.
3. Lubricate the rubber gasket on the new oil filter with a bit of new oil.
4. Install the new oil filter by hand until snug, then tighten it an additional 3/4 of a turn.

4. Test and Replace Oil Pressure Sending Unit (if necessary)

Sub-steps:
1. Disconnect the electrical connector from the oil pressure sending unit.
2. Remove the unit using a socket wrench.
3. Install a new oil pressure sending unit and tighten it to the manufacturer's torque specification.
4. Reconnect the electrical connector.

5. Check Oil Pump (if necessary)

Sub-steps:
1. If the oil pressure is still low, remove the oil pan to access the oil pump.
2. Inspect the oil pump for wear and damage; replace if necessary.
3. Reassemble the oil pan with a new gasket, ensuring proper torque on the bolts.