my Ford Explorer has low oil pressure warning light on what should I check

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

588 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 light in Ford Explorer. Step-by-step guide with diagnostic procedures 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 oil drain plug.

Symptoms

•Low oil pressure warning light illuminated
•Engine noise (ticking or knocking sounds)
•Decreased engine performance
•Oil leaks observed under the vehicle
•Oil level appears low on the dipstick

Diagnostic Steps

1
Check the oil level using the dipstick to ensure it is within the recommended range.
2
Inspect for any visible oil leaks around the oil pan, oil filter, and engine gaskets.
3
Scan the vehicle's onboard computer for any error codes related to the oil pressure sensor or other relevant systems.
4
Verify the function of the oil pressure sending unit/sensor using a multimeter.
5
Test the oil pressure with an external mechanical oil pressure gauge to confirm actual pressure readings.
6
Check the condition of the engine oil; if it appears dirty or degraded, it may need to be changed.

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
•Multimeter
•Mechanical oil pressure gauge
•Socket set
•Oil filter wrench

Parts Required

•Oil pressure sensor (if faulty)
•Engine oil (specific to the vehicle model)
•Oil filter

Related Faults

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Diagnostic Steps

1
Check the oil level using the dipstick to ensure it is within the recommended range.
2
Inspect for any visible oil leaks around the oil pan, oil filter, and engine gaskets.
3
Scan the vehicle's onboard computer for any error codes related to the oil pressure sensor or other relevant systems.
4
Verify the function of the oil pressure sending unit/sensor using a multimeter.
5
Test the oil pressure with an external mechanical oil pressure gauge to confirm actual pressure readings.
6
Check the condition of the engine oil; if it appears dirty or degraded, it may need to be changed.

Solution

1. Preparation

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

2. Check Oil Level

Locate the dipstick, remove it, wipe it clean, and reinsert it.
Remove the dipstick again and check the oil level; add oil if necessary to reach the full mark.

3. Inspect for Leaks

Visually inspect the oil pan, oil filter, and all engine gaskets for signs of oil leakage.
If leaks are found, identify the source and proceed to replace the faulty component.

4. Replace Oil Pressure Sensor (if needed)

Locate the oil pressure sensor, typically near the oil filter or on the engine block.
Disconnect the electrical connector from the sensor.
Use a socket wrench to remove the old sensor and install a new one, tightening it to manufacturer specifications (usually around 15-20 ft-lbs).
Reconnect the sensor's electrical connector.

5. Change Engine Oil and Filter (if needed)

If oil is dirty, drain the old oil by removing the oil drain plug and allow it to empty into a pan.
Replace the oil filter using an oil filter wrench.
Reinstall the drain plug.
Fill the engine with new oil (consult the owner’s manual for the correct type and quantity).

6. Test Oil Pressure

Attach a mechanical oil pressure gauge to the oil pressure sensor port.
Start the engine and observe the pressure reading; it should be within manufacturer specifications (often between 25-65 psi at idle).
If pressure is low, further investigation into the oil pump or internal engine issues may be necessary.