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Engine-Codes – Chevrolet – P0108 2017 Chevrolet Silverado

P0108 2017 Chevrolet Silverado Code - Manifold Absolute Pressure/Barometric Pressure Circuit High Input

Quick Answer

The P0108 diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado indicates a problem with the Manifold Absolute Pressure (MAP) sensor or the Barometric Pressure (BARO) sensor circuit. Common causes include Faulty MAP or BARO sensor, Damaged or corroded wiring/connectors in the sensor circuit, ECM malfunction. 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
P0108 2017 Chevrolet Silverado indicates Manifold Absolute Pressure/Barometric Pressure Circuit High Input.
Common causes
Common causes include Faulty MAP or BARO sensor, Damaged or corroded wiring/connectors in the sensor circuit, ECM malfunction.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 15, 2024
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Code P0108 2017 Chevrolet Silverado Description

The P0108 diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado indicates a problem with the Manifold Absolute Pressure (MAP) sensor or the Barometric Pressure (BARO) sensor circuit. The MAP sensor measures the pressure inside the intake manifold, providing crucial data to the engine control module (ECM) to calculate air/fuel mixture and ignition timing. The BARO sensor, on the other hand, measures the atmospheric pressure outside the vehicle, helping the ECM adjust for changes in altitude.

OBDII Code P0108 2017 Chevrolet Silverado - Manifold Absolute Pressure/Barometric Pressure Circuit High Input
P0108 2017 Chevrolet Silverado Code - Manifold Absolute Pressure/Barometric Pressure Circuit High Input

Common Causes of P0108 2017 Chevrolet Silverado

  1. Faulty MAP or BARO sensor
  2. Damaged or corroded wiring/connectors in the sensor circuit
  3. ECM malfunction
  4. Vacuum leaks in the intake system
  5. Clogged or dirty air filter restricting airflow

Symptoms of P0108 2017 Chevrolet Silverado

  1. Decreased fuel efficiency
  2. Rough idling or stalling
  3. Engine hesitation during acceleration
  4. Engine misfires
  5. Illumination of the check engine light

How to Fix P0108 2017 Chevrolet Silverado

  1. Begin by using a scan tool to verify the P0108 code and ensure it is not a false alarm.
  2. Inspect the MAP and BARO sensors, along with their wiring and connectors, for any visible damage or corrosion. Replace any faulty components.
  3. Check for vacuum leaks in the intake system and repair as necessary.
  4. Clear the DTC and reset the ECM to see if the code returns.
  5. Test drive the vehicle to confirm that the issue has been resolved and that the symptoms have disappeared.

Cost to Fix P0108 2017 Chevrolet Silverado

The cost of repairing a P0108 code on a 2017 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, replacing a faulty MAP or BARO sensor can cost between $50 and $200, while addressing wiring or connector problems may add to the total cost. Labor rates at auto repair shops typically range from $80 to $150 per hour, so the total repair bill could amount to $150 to $500 or more, depending on the extent of the repairs needed. It's advisable to consult with a trusted mechanic or dealership for a more accurate estimate based on your vehicle's specific circumstances.

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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 P0108 2017 Chevrolet Silverado Code

1. What does the OBDII code P0108 mean on a 2017 Chevrolet Silverado?

The code P0108 indicates that the Manifold Absolute Pressure (MAP) sensor is detecting a voltage signal that is higher than the expected range.

2. What are common symptoms of the P0108 code in a 2017 Chevrolet Silverado?

Symptoms may include poor engine performance, rough idling, reduced fuel efficiency, hesitation during acceleration, and the Check Engine Light turning on.

3. What causes the P0108 code on a 2017 Chevrolet Silverado?

Common causes include a faulty MAP sensor, damaged wiring or connectors, a vacuum leak, or issues with the Engine Control Module (ECM).

4. Can a dirty or clogged air filter cause the P0108 code?

While not a direct cause, a severely clogged air filter can affect engine performance and indirectly contribute to MAP sensor issues.

5. How do I diagnose the P0108 code on my 2017 Chevrolet Silverado?

Start by inspecting the MAP sensor, its wiring, and connectors for damage. Use a scan tool to check sensor readings and compare them to manufacturer specifications.

6. Can I drive my 2017 Chevrolet Silverado with the P0108 code?

Driving with the P0108 code is not recommended as it can lead to poor engine performance, increased emissions, and potential damage to other components.

7. How do I fix the P0108 code on my 2017 Chevrolet Silverado?

Repairs may include replacing the MAP sensor, repairing damaged wiring or connectors, fixing any vacuum leaks, or reprogramming/updating the ECM.

8. How much does it cost to fix the P0108 code on a 2017 Chevrolet Silverado?

The cost depends on the issue. Replacing a MAP sensor typically costs $100–$300, including parts and labor. Wiring or ECM repairs may cost more.

9. Will clearing the P0108 code with a scan tool fix the problem?

Clearing the code will temporarily turn off the Check Engine Light but won’t fix the underlying issue causing the P0108 code.

10. Can a failing throttle position sensor trigger the P0108 code?

While uncommon, issues with the throttle position sensor or related components can sometimes affect manifold pressure readings and trigger the P0108 code.

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