Code P06DD on a Chevy Silverado (Fix Added)

On-board diagnostics is referred to as OBD. It uses a straightforward code made up of a few letters and digits to reflect the current issue that is plaguing your car. These codes are universal so that every manufacturer can understand them.

The P06DD code on a Chevy Silverado stands for “Engine Oil Pressure Control Circuit Performance/Stuck Off.” It is a diagnostic code that refers to the engine oil pressure control circuit, which has been stuck off.

If you have encountered this code personally and wish to fix it, I will help you in this matter. In case you wanted to know what does P06DD code means on Chevy Silverado and how to fix the problem causing it, proceed with the article.

What Does the P06DD Code Mean on A Chevy Silverado?

• P – Powertrain, and the problem is related to the engine, transmission, and emission systems.
• 0 – Generic OBD Code.
• 6 – Computer and output circuit.
• DD – Specific fault information. The engine oil pressure control circuit.

There are a variety of causes that might result in the P06DD code. First of all, it could be due to a faulty sensor, in which case there are no major concerns apart from fixing the sensor.

The PCM tries to save engine wear by shutting off the oil pump drive and setting the P06DD code if the oil pressure sensor signals that the engine oil pressure is low or if the oil pump face is broken.

The P06DD error code denotes that the powertrain control module (PCM) has gotten a signal from the engine oil pressure sensor indicating that the engine oil pressure is below the set allowed thresholds.

In case you wanted to know what does P06DD code means on Chevy Silverado and how to fix the problem, let’s see the dissection provided below:

How Serious is the Code P06DD for a Chevy Silverado?

It is highly necessary to fix the error code P06DD as soon as possible. If left unchecked for a prolonged period, and if used during the appearance of this error could, it could lead to serious engine damage.

The most common result is a stuck piston/cylinder due to insufficient oil pressure causing the engine to stop working. The engine oil pressure sensor signals the PCM (Power Control Module) that the oil pressure is too low and it is damaging the dual-stage oil pump, which results in the P06DD code.

The PCM will disable the Oil Pump Drive and set a code to save engine wear. Therefore, it is a code that must be taken seriously and actions must be taken immediately to remedy it.

What Can Cause a Code P06DD on a Chevy Silverado?

Several causes might initiate the P06DD error code on a Chevy Silverado. It is crucial to identify the exact cause to proceed with the fix for the issue.

As there may be several causes behind this error code, a proper diagnosis is needed. These are some of the most common causes behind the P06DD code on the Chevy Silverado.

• Low engine oil.
• Dirty engine oil.
• Bad engine oil filter.
• Incorrect engine oil filter.
• Failure of the dual-stage oil pump.
• Damaged wiring.
• The solenoid valve harness of the oil pressure control is open or shorted.
• Faulty connection of electrical components regarding the oil pressure sensor circuit.
• Faulty ECM or Engine Control Module.
• Faulty engine oil pressure sensor.

Which Symptoms Can Appear Regarding the P06DD Code on a Chevy Silverado?

There are quite a few symptoms that will begin to appear along with the appearance of the P06DD code.

Some of these symptoms will be fairly obvious from the very start, while the other symptoms might not be as evident from the start. It might take a while for you to properly acknowledge these signs.

I will now mention some of the most common symptoms of the P06DD code below:

• The “check engine” light is permanently turned on.
• Excessive noise coming from the engine.
• A greater magnitude of engine vibration.
• Lack of proper engine power.
• Continuous loss of oil pressure.
• Poor performance of the vehicle.
• Poor idle quality.
• Rough idles with or without stalling.

How Can I Fix the P06DD Code on the Chevy Silverado?

As with any other problem, you must first pinpoint the exact root of the issue. So, check the components connected to the engine oil pressure control circuit to pinpoint the exact cause.

The key diagnostic steps are provided below for your convenience.

1. Check for Active DTC Codes

You can use an OBD-II scan tool to verify that your vehicle has registered code P06DD for not maintaining minimum pressure. Also, check for any additional code.

If the P06DD is accompanied by related check engine codes such as P0520, P0521, P0522, P0523, or P06DA, you need to address them first.

After these codes are addressed, test drive the vehicle to see if the P06DD code returns.

2. Checking the Engine Oil

Check for a low oil level. At various operational phases, this situation can prohibit controlled oil pressure supply and jeopardize any vital moving parts.

Ensure that your vehicle uses an OEM-specified oil filter. In addition to checking for an incorrect oil filter, you need to check your car for a few things:

• Dirty engine oil.
• Aerated engine oil.
• Incorrect viscosity of the engine oil.

Additionally, check the oil change frequency to ensure that the oil was changed at the required intervals and miles. If the code still returns, proceed to inspect the oil pump.

3. Inspection of the Dual-Stage Oil Pump

If your engine oil and the oil filters are fine, you need to inspect the oil pump assembly. If the oil pump or the solenoid is faulty, it’ll need to be replaced.

This involves replacing the entire oil pump assembly as it doesn’t contain any serviceable sub-parts. Before that, it is needed to inspect the oil pressure sensor as well as the oil pressure sensor harness for any broken or bent pins.

If the sensor is replaced, turn on the ignition, and check if the DTC returns. If it does, proceed with the oil pump replacement and perform the powertrain verification test.

How Much Does It Cost to Fix the Code P06DD?

The cost of the entire troubleshooting will depend on three important factors. Firstly, the cost of the diagnosis, which is done to pinpoint the exact cause of the problem. Without a proper diagnosis, it is extremely difficult to fix the issue.

The second factor is the cost of the replacement components that you will need to acquire to fix the issue. And finally, the cost of labor. This will vary from one region to another.

Some may charge you based on the task, while others may have an hourly rate. Which is around $75 to $150 per hour in most areas.

Now for the cost of the replacement parts. A simple oil change will range between $20 to $60. The oil filter replacement will be around $40 to $90. The cost to replace the valve cover gasket will vary between $100 to $350.

The costliest replacements are the oil pressure sensor and the engine oil pump assembly. These will be around $70 to &270 and $290 to $2600 respectively.

Can You Drive Your Chevy Silverado with the Code P06DD?

No. It is always advised against driving the vehicle when the P06DD code is active and the engine light is illuminated.

You should contact a mechanic or a repair shop as soon as possible and get the issue fixed before you proceed to drive your vehicle. Low oil pressure is the primary cause behind the P06DD code. If it is left untreated, it could harm your engine’s important moving parts.

For instance, insufficient oil levels might cause your engine’s pistons or cylinders to seize, which will prevent your car engine from starting. And in the long run, could permanently even damage your engine.

Therefore, to have the P06DD code properly diagnosed and corrected, it is advised to contact an auto repair shop as soon as possible. Especially when you see that your Check Engine Light is illuminated or blinking.

Frequently Asked Questions (FAQs)

Conclusion

In case you wanted to know what does P06DD code means on Chevy Silverado and how to fix the problem causing it, this article should be the perfect guide for you. And you should now know the cause and fix this error code.

I have also described and explained the estimated cost needed to fix this issue. However, if the code persists even after following the provided steps, feel free to consult a professional mechanic, as there may be other underlying issues with the vehicle.