Engine-CodesGeneric – P1247

P1247 Code - Turbo Boost Pressure Low

Quick Answer

The P1247 code indicates that the turbo boost pressure in the vehicle's engine is too low. Common causes include Faulty wastegate: The wastegate controls the flow of exhaust gases to the turbocharger and can malfunction, leading to low boost pressure, Leaking intercooler: A leak in the intercooler can cause a loss of pressure in the intake system, resulting in low boost pressure, Clogged air filter: A dirty or clogged air filter can restrict airflow to the engine, reducing the amount of air available for boosting. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1247 indicates Turbo Boost Pressure Low.
Common causes
Common causes include Faulty wastegate: The wastegate controls the flow of exhaust gases to the turbocharger and can malfunction, leading to low boost pressure, Leaking intercooler: A leak in the intercooler can cause a loss of pressure in the intake system, resulting in low boost pressure, Clogged air filter: A dirty or clogged air filter can restrict airflow to the engine, reducing the amount of air available for boosting.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P1247 Description

The P1247 code indicates that the turbo boost pressure in the vehicle's engine is too low. Turbo boost pressure is crucial for the engine's performance as it helps to increase power and efficiency by forcing more air into the combustion chamber. When the boost pressure is low, the engine may experience a lack of power, reduced fuel efficiency, and potentially even stalling. This issue can be caused by a variety of factors, including problems with the turbocharger, wastegate, intercooler, or intake system.

OBDII Code P1247 - Turbo Boost Pressure Low
P1247 Code - Turbo Boost Pressure Low

Common Causes of P1247

  1. Faulty wastegate: The wastegate controls the flow of exhaust gases to the turbocharger and can malfunction, leading to low boost pressure.
  2. Leaking intercooler: A leak in the intercooler can cause a loss of pressure in the intake system, resulting in low boost pressure.
  3. Clogged air filter: A dirty or clogged air filter can restrict airflow to the engine, reducing the amount of air available for boosting.
  4. Turbocharger issues: Problems with the turbocharger itself, such as worn-out or damaged components, can lead to low boost pressure.

Symptoms of P1247

  1. Loss of power: The vehicle may feel sluggish and have difficulty accelerating due to the lack of turbo boost pressure.
  2. Poor fuel efficiency: A decrease in fuel economy may be noticeable as the engine works harder to compensate for the low boost pressure.
  3. Engine stalling: In severe cases, the engine may stall or have difficulty idling due to the lack of power from the turbocharger.
  4. Check engine light: The vehicle's onboard diagnostics system may trigger the check engine light to alert the driver to the low turbo boost pressure issue.

How to Fix P1247

  1. Inspect the wastegate: Check the wastegate for any signs of damage or malfunction and replace it if necessary.
  2. Check the intercooler: Inspect the intercooler for leaks or damage, and repair or replace it as needed.
  3. Replace the air filter: Install a new, clean air filter to ensure proper airflow to the engine.
  4. Test the turbocharger: Check the turbocharger for any issues, such as worn-out components, and repair or replace as necessary.

Cost to Fix P1247

The cost of repairing a low turbo boost pressure issue can vary depending on the specific cause of the problem and the extent of the repairs needed. In general, the cost of parts for this repair can range from $200 to $1000, with labor costs adding an additional $200 to $500. Keep in mind that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and the mechanic's labor rates. It's recommended to get a detailed quote from a trusted auto repair shop before proceeding with the repair.

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Code P1247 Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1247 Code

1. What are the common symptoms of OBDII code P1247 (Turbo Boost Pressure Low)?

- Common symptoms include a lack of power or acceleration, reduced fuel efficiency, and the illumination of the check engine light.

2. What are the possible causes of OBDII code P1247 (Turbo Boost Pressure Low)?

- Potential causes can include a faulty turbocharger, wastegate issues, boost leaks, clogged air filters, or malfunctioning sensors.

3. How can I diagnose the root cause of OBDII code P1247 (Turbo Boost Pressure Low)?

- Diagnosis involves checking the turbocharger, wastegate, intercooler, hoses, air filters, and sensors for any signs of damage, leaks, or malfunctions.

4. Can driving with OBDII code P1247 (Turbo Boost Pressure Low) cause further damage to my vehicle?

- Continuing to drive with this code can potentially lead to decreased engine performance, increased fuel consumption, and further damage to the turbocharger components.

5. What are some DIY repair tips for addressing OBDII code P1247 (Turbo Boost Pressure Low)?

- DIY repair tips include checking and cleaning air filters, inspecting for boost leaks, ensuring proper wastegate function, and verifying sensor readings.

6. When should I seek professional help for OBDII code P1247 (Turbo Boost Pressure Low)?

- It's advisable to seek professional assistance if you are unsure about diagnosing or repairing the turbocharger system, as specialized tools and knowledge may be required.

7. Is it safe to reset the OBDII code P1247 (Turbo Boost Pressure Low) and continue driving without addressing the underlying issue?

- Resetting the code without addressing the root cause is not recommended, as the problem will persist and potentially lead to more severe issues over time.

8. How much does it typically cost to repair OBDII code P1247 (Turbo Boost Pressure Low) at a mechanic or dealership?

- Repair costs can vary depending on the specific cause of the issue, but expect to pay anywhere from $200 to $1000 or more for parts and labor.

9. Are there any preventive measures to avoid OBDII code P1247 (Turbo Boost Pressure Low) in the future?

- Regular maintenance, such as replacing air filters, checking for leaks, and ensuring proper turbocharger function, can help prevent issues that trigger this code.

10. Can extreme weather conditions impact the likelihood of triggering OBDII code P1247 (Turbo Boost Pressure Low)?

- Yes, extreme cold or hot weather can affect turbocharger performance and increase the likelihood of triggering this code, especially if the system is not well-maintained.

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