AutoCodes – Chevrolet – P0299 2017 Chevrolet Silverado

P0299 2017 Chevrolet Silverado Code - Engine Underboost

Quick Answer

The Engine Control Module (ECM) uses the Manifold Absolute Pressure (MAP) sensor input and turbocharger actuator output to control the amount of engine induction system boost pressure. Common causes include Faulty Turbocharger Vane Position Actuator, Air leaks between the turbocharger and the intake air flow valve, Airflow restrictions in air ducts or air filter. 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: P0299 2017 Chevrolet Silverado indicates Engine Underboost.
Common causes: Common causes include Faulty Turbocharger Vane Position Actuator, Air leaks between the turbocharger and the intake air flow valve, Airflow restrictions in air ducts or air filter.
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.

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Code Popularity 416

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Jun 09, 2022

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0299 2017 Chevrolet Silverado Description

The Engine Control Module (ECM) uses the Manifold Absolute Pressure (MAP) sensor input and turbocharger actuator output to control the amount of engine induction system boost pressure. The ECM calculates a desired boost pressure value and monitors the actual boost pressure. If the difference between the actual boost pressure and the desired boost pressure is less than or greater than a calibrated threshold level, the ECM detects that the amount of detected boost pressure is out of range. The Diagnostic Trouble Code (DTC) will be set when the ECM detects the difference between the actual boost pressure and the desired boost pressure in the intake manifold is less than the expected range for 12.5 s. The 12.5 s time is not continuous but cumulative. The timer may sum up a heavy load condition obtained during different maneuvers.

OBDII Code P0299 2017 Chevrolet Silverado - Engine Underboost - AutoCodes.com — P0299 2017 Chevrolet Silverado Code - Engine Underboost

What does this mean?

What are the Possible Causes of the DTC P0299 2017 Chevrolet Silverado?

Faulty Turbocharger Vane Position Actuator
Air leaks between the turbocharger and the intake air flow valve
Airflow restrictions in air ducts or air filter
Ice or debris in the induction system
Leaks at the Positive Crankcase Ventilation (PCV) system
Faulty Turbocharger

How to Fix the DTC P0299 2017 Chevrolet Silverado?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0299 2017 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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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 P0299 2017 Chevrolet Silverado Code

1. What does the OBDII code P0299 mean on a 2017 Chevrolet Silverado?

P0299 indicates an "Engine Underboost" condition, meaning the turbocharger or supercharger is not generating the expected boost pressure.

2. What are common symptoms of code P0299 in a 2017 Chevrolet Silverado?

Symptoms include reduced engine power, poor acceleration, decreased fuel efficiency, a whining noise from the turbo, and the check engine light turning on.

3. What causes the P0299 code in a 2017 Chevrolet Silverado?

Common causes include a failing turbocharger, boost pressure leaks from hoses or intercooler, a malfunctioning wastegate, clogged air filters, or issues with the sensors monitoring boost pressure.

4. Can I drive my 2017 Chevrolet Silverado with a P0299 code?

While it may be possible to drive, it is not recommended as prolonged underboost can lead to engine performance issues and potential damage to the turbocharger.

5. How do I diagnose the P0299 code in my 2017 Chevrolet Silverado?

Diagnosis involves inspecting the turbocharger, checking for boost leaks in the hoses and intercooler, testing the wastegate, verifying the MAP sensor functionality, and scanning for related codes.

6. What repairs can fix the P0299 code in a 2017 Chevrolet Silverado?

Repairs may include replacing a faulty turbocharger, repairing leaks in the intake system, cleaning or replacing the air filter, or replacing malfunctioning sensors like the MAP sensor.

7. How much does it cost to repair a P0299 code on a 2017 Chevrolet Silverado?

Repair costs vary widely but can range from $100 for fixing minor leaks to over $2,000 for a turbocharger replacement, depending on labor and parts.

8. Can a dirty air filter cause a P0299 code on a 2017 Chevrolet Silverado?

Yes, a clogged air filter can restrict airflow to the turbo, leading to insufficient boost pressure and triggering the P0299 code.

9. What tools are needed to troubleshoot the P0299 code on a 2017 Chevrolet Silverado?

Youâ€™ll need an OBDII scanner, a boost pressure gauge, and basic tools for inspecting turbo components, hoses, and sensors.

10. Is the P0299 code covered under warranty for a 2017 Chevrolet Silverado?

If your vehicle is still under the powertrain warranty, repairs related to the turbocharger or associated systems may be covered. Check with your dealer for details.