P08AF - DTC P08AF - Understanding the Oil Pressure Control Circuit Performance Code in 2015-2018 Ford F-150

Quick Answer

P08AF means: The P08AF code indicates an issue with the oil pressure control circuit performance, often found in certain Ford models.

Fix: Check and replace faulty components Cost: $100 - $300 Time: 90-180 minutes

Can I drive with P08AF? Immediate attention is recommended to prevent engine damage.

Common Questions

What does P08AF mean and how does it affect my car?

The P08AF code indicates a problem with the oil pressure control system, which is crucial for keeping your engine lubricated. This can lead to severe engine damage if not fixed, affecting performance and longevity.

What are the most common causes of P08AF and how much does it cost to fix?

Common causes include a faulty oil pressure sensor, oil pump failure, and wiring issues. Repair costs range from $100 to over $1,200, depending on the specific issue.

Can I drive my car with P08AF or should I stop immediately?

It's advisable to stop driving immediately if you see the P08AF code, as continuing can lead to serious engine damage due to inadequate lubrication.

How can I diagnose P08AF myself using GeekOBD APP?

Using the GeekOBD APP, scan for codes, review freeze frame data, and check live data for oil pressure readings to determine if the sensor is working correctly.

What vehicles are most commonly affected by P08AF?

The P08AF code is frequently seen in 2015-2018 Ford F-150 models, along with some other Ford vehicles equipped with similar engines.

How can I prevent P08AF from happening again?

Regular maintenance, including timely oil changes and inspections of the oil pressure system, can help prevent issues with the oil pressure control circuit.

What is P08AF?

The P08AF code indicates an issue with the oil pressure control circuit performance, specifically in vehicles like the 2015 to 2018 Ford F-150. This diagnostic trouble code suggests that the engine control module (ECM) has detected an abnormality in the oil pressure management system, which may lead to insufficient lubrication and potential engine damage if not addressed. The oil pressure control circuit plays a crucial role in regulating the engine's oil distribution, ensuring that all moving parts receive adequate lubrication to function smoothly. If the system is malfunctioning, you might experience reduced oil pressure, which can trigger the check engine light and lead to other related symptoms such as engine knocking or overheating. It's important to diagnose and repair this issue promptly to maintain engine health and performance. Ignoring this code could result in severe engine damage, increasing repair costs and risking performance issues.

System: P - Powertrain (Engine, Transmission, Emissions)

Symptoms

Common symptoms when P08AF is present:

Check engine light stays on constantly, indicating a persistent issue with the oil pressure system.
Engine hesitates during acceleration, which can be felt as a loss of power when trying to increase speed.
Fuel economy decreased by 10-15%, as the engine works harder to compensate for inadequate lubrication.
Unusual engine noises, such as knocking or ticking, which may indicate insufficient oil pressure.
Overheating engine, as improper lubrication can cause increased friction and heat within the engine components.

Possible Causes

Most common causes of P08AF (ordered by frequency):

{'cause': 'Faulty oil pressure sensor (60%) - This is the most common cause, where the sensor fails to communicate the correct oil pressure readings to the ECM.', 'details': 'A malfunctioning sensor can cause erratic oil pressure readings, triggering the P08AF code.'}
{'cause': "Oil pump failure (20%) - If the oil pump is not functioning correctly, it won't circulate oil effectively, leading to low pressure.", 'details': 'This could be due to wear and tear, low oil levels, or a clogged oil filter.'}
{'cause': 'Wiring issues (15%) - Damaged wiring or loose connections in the oil pressure control circuit can lead to incorrect signals being sent to the ECM.', 'prevention': 'Regularly inspect wiring harnesses and connectors, especially when performing maintenance.'}
{'cause': 'Oil leaks (3%) - Significant oil leaks can lead to low oil levels, affecting pressure.', 'details': 'Inspect for visible leaks around the oil filter and pan.'}
{'cause': 'Contaminated oil (2%) - Using low-quality oil or not changing it regularly can lead to sludge buildup, affecting oil pressure.', 'details': 'Always use manufacturer-recommended oil and adhere to change intervals.'}

P08AF Repair Costs

Cost Breakdown by Repair Type

Oil Pressure Sensor Replacement

Replacing the faulty oil pressure sensor often resolves the P08AF code.

Total: $100 - $300
Success rate: 90%

Oil Pump Replacement

If the oil pump is determined to be the issue, it may need to be replaced.

Total: $500 - $1,200
Success rate: 85%

Money-Saving Tips for P08AF

Start with the most common and least expensive repairs first
Use GeekOBD APP to confirm diagnosis before replacing expensive parts
Consider preventive maintenance to avoid future occurrences
Compare prices for OEM vs aftermarket parts based on your needs
Address the issue promptly to prevent more expensive secondary damage

Diagnostic Steps

Professional P08AF Diagnosis Process

Follow these systematic steps to accurately diagnose P08AF. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes)

Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes).